├── .gitignore ├── LICENSE ├── README.md ├── case ├── Makefile ├── README.md ├── bottom-with-lid.stl ├── bottom.stl ├── case.scad ├── grid.scad ├── top-with-lid.stl └── top.stl ├── client.rb ├── firmware ├── .gitignore ├── Gemfile ├── Gemfile.lock ├── Makefile ├── README.md ├── data │ ├── app.js │ ├── config.json │ └── index.html ├── platformio.ini ├── src │ ├── firmware.ino │ ├── measurement.cpp │ ├── measurement.h │ ├── tp6703.cpp │ └── tp6703.h └── utils │ ├── esp_client.rb │ ├── i2c-client.rb │ ├── mqtt-to-influx.rb │ ├── prog.rb │ └── serial-client.rb ├── pcb ├── README.md ├── artwork.pretty │ ├── gorby.kicad_mod │ └── rubysan.kicad_mod ├── fp-lib-table ├── gerbers-smd.zip ├── gerbers.zip ├── pcb-smd-cache.lib ├── pcb-smd.kicad_pcb ├── pcb-smd.pro ├── pcb-smd.sch ├── pm_25-cache.lib ├── pm_25-rescue.dcm ├── pm_25-rescue.lib ├── pm_25.dcm ├── pm_25.kicad_pcb ├── pm_25.lib ├── pm_25.net2 ├── pm_25.pretty │ ├── SI7021Breakout.kicad_mod │ └── USBBreakout.kicad_mod ├── pm_25.pro ├── pm_25.sch └── sym-lib-table └── pics ├── grafana.png ├── project-small.jpeg └── project.jpeg /.gitignore: -------------------------------------------------------------------------------- 1 | # Reports 2 | *.rpt 3 | 4 | # CPL data generated from PCB 5 | *.pos 6 | 7 | # KiCAD backup 8 | *.bak 9 | *.bck 10 | *.kicad_pcb-bak 11 | *.sch-bak 12 | _saved_* 13 | 14 | # Netlists 15 | *.net 16 | 17 | # BOM plugin output 18 | *.csv.tmp 19 | *.csv 20 | *.xml 21 | 22 | # Gerbers 23 | *.gbr 24 | 25 | # Drill files 26 | *.drl 27 | 28 | # Footprint info cache 29 | fp-info-cache 30 | 31 | # Autosave files 32 | _autosave-* 33 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | ## PCB Artwork: 2 | 3 | PCB Artwork is Copyright 2021, Hiroko Ebisawa. 4 | 5 | ## Everything else in this repository: 6 | 7 | This is free and unencumbered software released into the public domain. 8 | 9 | Anyone is free to copy, modify, publish, use, compile, sell, or 10 | distribute this software, either in source code form or as a compiled 11 | binary, for any purpose, commercial or non-commercial, and by any 12 | means. 13 | 14 | In jurisdictions that recognize copyright laws, the author or authors 15 | of this software dedicate any and all copyright interest in the 16 | software to the public domain. We make this dedication for the benefit 17 | of the public at large and to the detriment of our heirs and 18 | successors. We intend this dedication to be an overt act of 19 | relinquishment in perpetuity of all present and future rights to this 20 | software under copyright law. 21 | 22 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 23 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 24 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 25 | IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR 26 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 27 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 28 | OTHER DEALINGS IN THE SOFTWARE. 29 | 30 | For more information, please refer to 31 | 32 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # My ESP8266 + Plantower AQ sensor project 2 | 3 | This project is an ESP8266 combined with an AQ sensor and temp / humidity 4 | sensor. I have these set up around my house so I can monitor air quality and 5 | temp. The sensor publishes data to an MQTT server, then I have a listener that 6 | connects to the MQTT server and writes all of the AQ data to an Influx 7 | database. I'm using Grafana to graph the data in the InfluxDB. 8 | 9 | ## Overview 10 | 11 | Here is a photo of the completed project: 12 | 13 | ![Photo of Project](pics/project-small.jpeg) 14 | 15 | The sensor gets power over USB. When you power the sensor up, it will create 16 | an ad-hoc wifi network. You can connect to that network then configure the 17 | sensor with the network you want it to connect to. 18 | 19 | ## Hardware 20 | 21 | The PCB is found in the [pcb](pcb) directory. It's just a Kicad project. The 22 | [README](pcb/README.md) in that folder has more information about the hardware 23 | side of this project (including parts, etc). 24 | 25 | ## Firmware 26 | 27 | The firmware is found in the [firmware](firmware) directory. The 28 | [README](firmware/README.md) file in that folder has more information about the 29 | firmware side of this project. 30 | 31 | ## Grafana 32 | 33 | Here is a sample graph of the data: 34 | 35 | ![Grafana screenshot](pics/grafana.png) 36 | -------------------------------------------------------------------------------- /case/Makefile: -------------------------------------------------------------------------------- 1 | OPENSCAD = /Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD 2 | 3 | %.stl: case.scad 4 | $(OPENSCAD) -D'rendering="$(basename $@)"' $< -o $@ 5 | 6 | all: top.stl bottom.stl top-with-lid.stl bottom-with-lid.stl 7 | 8 | clean: 9 | rm -f *.stl 10 | -------------------------------------------------------------------------------- /case/README.md: -------------------------------------------------------------------------------- 1 | # My ESP8266 + Plantower AQ Sensor Project 3D printed case 2 | 3 | This is the 3D printed case for the project. I checked in all of the STL files 4 | for the case, so you should be able to just print them directly. I made two 5 | versions of the case, one with most of the electronics exposed (because I think 6 | it looks neat), and one where the electronics are covered but there are some 7 | holes to let air flow. The one with holes is more targeted toward outdoor 8 | installations, but obviously it's not totally weatherproof. 9 | 10 | Both cases come in two parts, `top.stl` and `bottom.stl` are the files for the 11 | "electronics exposed" version. `top-with-lid.stl` and `bottom-with-lid.stl` 12 | are for the other version. 13 | 14 | These STL files are generated using OpenSCAD and the source file is 15 | `case.scad`. Feel free to mess around with it and customize the case! For 16 | example maybe try changing "TendAir" to some other text. lol 17 | -------------------------------------------------------------------------------- /case/bottom.stl: -------------------------------------------------------------------------------- 1 | solid OpenSCAD_Model 2 | facet normal 0 1 -0 3 | outer loop 4 | vertex 21.75 -22.9 1.5 5 | vertex 16 -22.9 7.25 6 | vertex 21.75 -22.9 7.25 7 | endloop 8 | endfacet 9 | facet normal 0 1 0 10 | outer loop 11 | vertex 16 -22.9 7.25 12 | vertex 21.75 -22.9 1.5 13 | vertex 16 -22.9 1.5 14 | endloop 15 | endfacet 16 | facet normal 0 1 -0 17 | outer loop 18 | vertex 54.4 -22.9 1.5 19 | vertex 48.65 -22.9 7.25 20 | vertex 54.4 -22.9 7.25 21 | endloop 22 | endfacet 23 | facet normal 0 1 0 24 | outer loop 25 | vertex 48.65 -22.9 7.25 26 | vertex 54.4 -22.9 1.5 27 | vertex 48.65 -22.9 1.5 28 | endloop 29 | endfacet 30 | facet normal 1 -0 0 31 | outer loop 32 | vertex 21.75 -24.9 7.25 33 | vertex 21.75 -22.9 1.5 34 | vertex 21.75 -22.9 7.25 35 | endloop 36 | endfacet 37 | facet normal 1 0 0 38 | outer loop 39 | vertex 21.75 -22.9 1.5 40 | vertex 21.75 -24.9 7.25 41 | vertex 21.75 -24.9 1.5 42 | endloop 43 | endfacet 44 | facet normal 1 -0 0 45 | outer loop 46 | vertex 21.75 -28.2 7.25 47 | vertex 21.75 -26.7 1.5 48 | vertex 21.75 -26.7 7.25 49 | endloop 50 | endfacet 51 | facet normal 1 0 0 52 | outer loop 53 | vertex 21.75 -28.2 0 54 | vertex 21.75 -26.7 1.5 55 | vertex 21.75 -28.2 7.25 56 | endloop 57 | endfacet 58 | facet normal 1 0 0 59 | outer loop 60 | vertex 21.75 -26.7 1.5 61 | vertex 21.75 -28.2 0 62 | vertex 21.75 -26.7 0 63 | endloop 64 | endfacet 65 | facet normal 0 -1 0 66 | outer loop 67 | vertex 14.5 -28.2 0 68 | vertex 21.75 -28.2 7.25 69 | vertex 14.5 -28.2 7.25 70 | endloop 71 | endfacet 72 | facet normal 0 -1 -0 73 | outer loop 74 | vertex 21.75 -28.2 7.25 75 | vertex 14.5 -28.2 0 76 | vertex 21.75 -28.2 0 77 | endloop 78 | endfacet 79 | facet normal 0 -1 0 80 | outer loop 81 | vertex 48.65 -28.2 0 82 | vertex 55.9 -28.2 7.25 83 | vertex 48.65 -28.2 7.25 84 | endloop 85 | endfacet 86 | facet normal 0 -1 -0 87 | outer loop 88 | vertex 55.9 -28.2 7.25 89 | vertex 48.65 -28.2 0 90 | vertex 55.9 -28.2 0 91 | endloop 92 | endfacet 93 | facet normal -1 0 0 94 | outer loop 95 | vertex 48.65 -24.9 1.5 96 | vertex 48.65 -22.9 7.25 97 | vertex 48.65 -22.9 1.5 98 | endloop 99 | endfacet 100 | facet normal -1 -0 0 101 | outer loop 102 | vertex 48.65 -22.9 7.25 103 | vertex 48.65 -24.9 1.5 104 | vertex 48.65 -24.9 7.25 105 | endloop 106 | endfacet 107 | facet normal -1 0 0 108 | outer loop 109 | vertex 48.65 -28.2 0 110 | vertex 48.65 -26.7 1.5 111 | vertex 48.65 -26.7 0 112 | endloop 113 | endfacet 114 | facet normal -1 0 0 115 | outer loop 116 | vertex 48.65 -28.2 7.25 117 | vertex 48.65 -26.7 1.5 118 | vertex 48.65 -28.2 0 119 | endloop 120 | endfacet 121 | facet normal -1 0 0 122 | outer loop 123 | vertex 48.65 -26.7 1.5 124 | vertex 48.65 -28.2 7.25 125 | vertex 48.65 -26.7 7.25 126 | endloop 127 | endfacet 128 | facet normal 0 0 1 129 | outer loop 130 | vertex 54.4 -1.5 1.5 131 | vertex 48.65 -22.9 1.5 132 | vertex 54.4 -22.9 1.5 133 | endloop 134 | endfacet 135 | facet normal 0 0 1 136 | outer loop 137 | vertex 21.75 -24.9 1.5 138 | vertex 48.65 -24.9 1.5 139 | vertex 48.65 -22.9 1.5 140 | endloop 141 | endfacet 142 | facet normal 0 0 1 143 | outer loop 144 | vertex 21.75 -24.9 1.5 145 | vertex 48.65 -22.9 1.5 146 | vertex 21.75 -22.9 1.5 147 | endloop 148 | endfacet 149 | facet normal 0 0 1 150 | outer loop 151 | vertex 54.4 -1.5 1.5 152 | vertex 21.75 -22.9 1.5 153 | vertex 48.65 -22.9 1.5 154 | endloop 155 | endfacet 156 | facet normal -0 0 1 157 | outer loop 158 | vertex 16 -1.5 1.5 159 | vertex 21.75 -22.9 1.5 160 | vertex 54.4 -1.5 1.5 161 | endloop 162 | endfacet 163 | facet normal 0 0 1 164 | outer loop 165 | vertex 21.75 -22.9 1.5 166 | vertex 16 -1.5 1.5 167 | vertex 16 -22.9 1.5 168 | endloop 169 | endfacet 170 | facet normal -0 0 1 171 | outer loop 172 | vertex 48.65 -24.9 1.5 173 | vertex 54.4 -26.7 1.5 174 | vertex 54.4 -24.9 1.5 175 | endloop 176 | endfacet 177 | facet normal 0 0 1 178 | outer loop 179 | vertex 54.4 -26.7 1.5 180 | vertex 48.65 -24.9 1.5 181 | vertex 48.65 -26.7 1.5 182 | endloop 183 | endfacet 184 | facet normal 0 0 1 185 | outer loop 186 | vertex 48.65 -24.9 1.5 187 | vertex 21.75 -24.9 1.5 188 | vertex 48.65 -26.7 1.5 189 | endloop 190 | endfacet 191 | facet normal 0 0 1 192 | outer loop 193 | vertex 21.75 -24.9 1.5 194 | vertex 21.75 -26.7 1.5 195 | vertex 48.65 -26.7 1.5 196 | endloop 197 | endfacet 198 | facet normal -0 0 1 199 | outer loop 200 | vertex 16 -24.9 1.5 201 | vertex 21.75 -26.7 1.5 202 | vertex 21.75 -24.9 1.5 203 | endloop 204 | endfacet 205 | facet normal 0 0 1 206 | outer loop 207 | vertex 21.75 -26.7 1.5 208 | vertex 16 -24.9 1.5 209 | vertex 16 -26.7 1.5 210 | endloop 211 | endfacet 212 | facet normal 0 -1 0 213 | outer loop 214 | vertex 21.75 -26.7 0 215 | vertex 48.65 -26.7 1.5 216 | vertex 21.75 -26.7 1.5 217 | endloop 218 | endfacet 219 | facet normal 0 -1 -0 220 | outer loop 221 | vertex 48.65 -26.7 1.5 222 | vertex 21.75 -26.7 0 223 | vertex 48.65 -26.7 0 224 | endloop 225 | endfacet 226 | facet normal 0 0 -1 227 | outer loop 228 | vertex 21.75 -28.2 0 229 | vertex 14.5 -28.2 0 230 | vertex 21.75 -26.7 0 231 | endloop 232 | endfacet 233 | facet normal 0 0 -1 234 | outer loop 235 | vertex 48.65 -26.7 0 236 | vertex 55.9 -28.2 0 237 | vertex 48.65 -28.2 0 238 | endloop 239 | endfacet 240 | facet normal 0 0 -1 241 | outer loop 242 | vertex 55.9 -28.2 0 243 | vertex 48.65 -26.7 0 244 | vertex 55.9 0 0 245 | endloop 246 | endfacet 247 | facet normal 0 0 -1 248 | outer loop 249 | vertex 21.75 -26.7 0 250 | vertex 55.9 0 0 251 | vertex 48.65 -26.7 0 252 | endloop 253 | endfacet 254 | facet normal 0 0 -1 255 | outer loop 256 | vertex 14.5 -26.7 0 257 | vertex 21.75 -26.7 0 258 | vertex 14.5 -28.2 0 259 | endloop 260 | endfacet 261 | facet normal 0 0 -1 262 | outer loop 263 | vertex 0 0 0 264 | vertex 21.75 -26.7 0 265 | vertex 14.5 -26.7 0 266 | endloop 267 | endfacet 268 | facet normal 0 0 -1 269 | outer loop 270 | vertex 0 0 0 271 | vertex 14.5 -26.7 0 272 | vertex 0 -26.7 0 273 | endloop 274 | endfacet 275 | facet normal 0 0 -1 276 | outer loop 277 | vertex 21.75 -26.7 0 278 | vertex 0 0 0 279 | vertex 55.9 0 0 280 | endloop 281 | endfacet 282 | facet normal 1 -0 0 283 | outer loop 284 | vertex 16 -22.9 7.25 285 | vertex 16 -1.5 1.5 286 | vertex 16 -1.5 7.25 287 | endloop 288 | endfacet 289 | facet normal 1 0 0 290 | outer loop 291 | vertex 16 -1.5 1.5 292 | vertex 16 -22.9 7.25 293 | vertex 16 -22.9 1.5 294 | endloop 295 | endfacet 296 | facet normal 1 0 0 297 | outer loop 298 | vertex 16 -22.9 10.8 299 | vertex 16 -24.9 7.25 300 | vertex 16 -22.9 7.25 301 | endloop 302 | endfacet 303 | facet normal 1 -0 0 304 | outer loop 305 | vertex 16 -26.7 10.8 306 | vertex 16 -24.9 7.25 307 | vertex 16 -22.9 10.8 308 | endloop 309 | endfacet 310 | facet normal 1 0 0 311 | outer loop 312 | vertex 16 -26.7 7.25 313 | vertex 16 -24.9 7.25 314 | vertex 16 -26.7 10.8 315 | endloop 316 | endfacet 317 | facet normal 1 0 0 318 | outer loop 319 | vertex 16 -24.9 7.25 320 | vertex 16 -26.7 7.25 321 | vertex 16 -24.9 1.5 322 | endloop 323 | endfacet 324 | facet normal 1 0 0 325 | outer loop 326 | vertex 16 -24.9 1.5 327 | vertex 16 -26.7 7.25 328 | vertex 16 -26.7 1.5 329 | endloop 330 | endfacet 331 | facet normal -1 0 0 332 | outer loop 333 | vertex 54.4 -24.9 1.5 334 | vertex 54.4 -26.7 1.5 335 | vertex 54.4 -24.9 7.25 336 | endloop 337 | endfacet 338 | facet normal -1 0 0 339 | outer loop 340 | vertex 54.4 -1.5 1.5 341 | vertex 54.4 -18.7 6.275 342 | vertex 54.4 -1.5 21.8 343 | endloop 344 | endfacet 345 | facet normal -1 0 0 346 | outer loop 347 | vertex 54.4 -22.9 1.5 348 | vertex 54.4 -18.7 6.275 349 | vertex 54.4 -1.5 1.5 350 | endloop 351 | endfacet 352 | facet normal -1 0 0 353 | outer loop 354 | vertex 54.4 -22.9 7.25 355 | vertex 54.4 -21.15 6.275 356 | vertex 54.4 -22.9 1.5 357 | endloop 358 | endfacet 359 | facet normal -1 -0 0 360 | outer loop 361 | vertex 54.4 -18.7 6.275 362 | vertex 54.4 -22.9 1.5 363 | vertex 54.4 -21.15 6.275 364 | endloop 365 | endfacet 366 | facet normal -1 0 0 367 | outer loop 368 | vertex 54.4 -18.7 20.725 369 | vertex 54.4 -1.5 21.8 370 | vertex 54.4 -18.7 6.275 371 | endloop 372 | endfacet 373 | facet normal -1 0 0 374 | outer loop 375 | vertex 54.4 -26.7 21.8 376 | vertex 54.4 -18.7 20.725 377 | vertex 54.4 -21.15 20.725 378 | endloop 379 | endfacet 380 | facet normal -1 0 0 381 | outer loop 382 | vertex 54.4 -21.15 6.275 383 | vertex 54.4 -22.9 7.25 384 | vertex 54.4 -21.15 20.725 385 | endloop 386 | endfacet 387 | facet normal -1 0 0 388 | outer loop 389 | vertex 54.4 -24.9 7.25 390 | vertex 54.4 -21.15 20.725 391 | vertex 54.4 -22.9 7.25 392 | endloop 393 | endfacet 394 | facet normal -1 0 0 395 | outer loop 396 | vertex 54.4 -26.7 7.25 397 | vertex 54.4 -24.9 7.25 398 | vertex 54.4 -26.7 1.5 399 | endloop 400 | endfacet 401 | facet normal -1 0 0 402 | outer loop 403 | vertex 54.4 -26.7 21.8 404 | vertex 54.4 -24.9 7.25 405 | vertex 54.4 -26.7 7.25 406 | endloop 407 | endfacet 408 | facet normal -1 0 0 409 | outer loop 410 | vertex 54.4 -18.7 20.725 411 | vertex 54.4 -26.7 21.8 412 | vertex 54.4 -1.5 21.8 413 | endloop 414 | endfacet 415 | facet normal -1 0 0 416 | outer loop 417 | vertex 54.4 -24.9 7.25 418 | vertex 54.4 -26.7 21.8 419 | vertex 54.4 -21.15 20.725 420 | endloop 421 | endfacet 422 | facet normal -0 0 1 423 | outer loop 424 | vertex 54.4 -26.7 7.25 425 | vertex 55.9 -28.2 7.25 426 | vertex 55.9 -26.7 7.25 427 | endloop 428 | endfacet 429 | facet normal 0 0 1 430 | outer loop 431 | vertex 48.65 -28.2 7.25 432 | vertex 54.4 -26.7 7.25 433 | vertex 48.65 -26.7 7.25 434 | endloop 435 | endfacet 436 | facet normal 0 0 1 437 | outer loop 438 | vertex 54.4 -26.7 7.25 439 | vertex 48.65 -28.2 7.25 440 | vertex 55.9 -28.2 7.25 441 | endloop 442 | endfacet 443 | facet normal -0 0 1 444 | outer loop 445 | vertex 16 -26.7 7.25 446 | vertex 21.75 -28.2 7.25 447 | vertex 21.75 -26.7 7.25 448 | endloop 449 | endfacet 450 | facet normal 0 0 1 451 | outer loop 452 | vertex 14.5 -28.2 7.25 453 | vertex 16 -26.7 7.25 454 | vertex 14.5 -26.7 7.25 455 | endloop 456 | endfacet 457 | facet normal 0 0 1 458 | outer loop 459 | vertex 16 -26.7 7.25 460 | vertex 14.5 -28.2 7.25 461 | vertex 21.75 -28.2 7.25 462 | endloop 463 | endfacet 464 | facet normal -0 0 1 465 | outer loop 466 | vertex 48.65 -22.9 7.25 467 | vertex 54.4 -24.9 7.25 468 | vertex 54.4 -22.9 7.25 469 | endloop 470 | endfacet 471 | facet normal 0 0 1 472 | outer loop 473 | vertex 54.4 -24.9 7.25 474 | vertex 48.65 -22.9 7.25 475 | vertex 48.65 -24.9 7.25 476 | endloop 477 | endfacet 478 | facet normal -0 0 1 479 | outer loop 480 | vertex 16 -22.9 7.25 481 | vertex 21.75 -24.9 7.25 482 | vertex 21.75 -22.9 7.25 483 | endloop 484 | endfacet 485 | facet normal 0 0 1 486 | outer loop 487 | vertex 21.75 -24.9 7.25 488 | vertex 16 -22.9 7.25 489 | vertex 16 -24.9 7.25 490 | endloop 491 | endfacet 492 | facet normal 0 -1 0 493 | outer loop 494 | vertex 54.4 -26.7 7.25 495 | vertex 55.9 -26.7 21.8 496 | vertex 54.4 -26.7 21.8 497 | endloop 498 | endfacet 499 | facet normal 0 -1 -0 500 | outer loop 501 | vertex 55.9 -26.7 21.8 502 | vertex 54.4 -26.7 7.25 503 | vertex 55.9 -26.7 7.25 504 | endloop 505 | endfacet 506 | facet normal 0 -1 0 507 | outer loop 508 | vertex 14.5 -26.7 7.25 509 | vertex 16 -26.7 10.8 510 | vertex 14.5 -26.7 10.8 511 | endloop 512 | endfacet 513 | facet normal 0 -1 -0 514 | outer loop 515 | vertex 16 -26.7 10.8 516 | vertex 14.5 -26.7 7.25 517 | vertex 16 -26.7 7.25 518 | endloop 519 | endfacet 520 | facet normal 0 1 -0 521 | outer loop 522 | vertex 21.75 -26.7 1.5 523 | vertex 16 -26.7 7.25 524 | vertex 21.75 -26.7 7.25 525 | endloop 526 | endfacet 527 | facet normal 0 1 0 528 | outer loop 529 | vertex 16 -26.7 7.25 530 | vertex 21.75 -26.7 1.5 531 | vertex 16 -26.7 1.5 532 | endloop 533 | endfacet 534 | facet normal 0 1 -0 535 | outer loop 536 | vertex 54.4 -26.7 1.5 537 | vertex 48.65 -26.7 7.25 538 | vertex 54.4 -26.7 7.25 539 | endloop 540 | endfacet 541 | facet normal 0 1 0 542 | outer loop 543 | vertex 48.65 -26.7 7.25 544 | vertex 54.4 -26.7 1.5 545 | vertex 48.65 -26.7 1.5 546 | endloop 547 | endfacet 548 | facet normal -1 0 0 549 | outer loop 550 | vertex 14.5 -28.2 0 551 | vertex 14.5 -26.7 7.25 552 | vertex 14.5 -26.7 0 553 | endloop 554 | endfacet 555 | facet normal -1 -0 0 556 | outer loop 557 | vertex 14.5 -26.7 7.25 558 | vertex 14.5 -28.2 0 559 | vertex 14.5 -28.2 7.25 560 | endloop 561 | endfacet 562 | facet normal -1 0 0 563 | outer loop 564 | vertex 14.5 -1.5 1.5 565 | vertex 14.5 -22.9 7.25 566 | vertex 14.5 -1.5 7.25 567 | endloop 568 | endfacet 569 | facet normal -1 0 0 570 | outer loop 571 | vertex 14.5 -25.2 1.5 572 | vertex 14.5 -22.9 7.25 573 | vertex 14.5 -1.5 1.5 574 | endloop 575 | endfacet 576 | facet normal -1 0 0 577 | outer loop 578 | vertex 14.5 -25.2 10.8 579 | vertex 14.5 -22.9 7.25 580 | vertex 14.5 -25.2 1.5 581 | endloop 582 | endfacet 583 | facet normal -1 0 0 584 | outer loop 585 | vertex 14.5 -22.9 7.25 586 | vertex 14.5 -25.2 10.8 587 | vertex 14.5 -22.9 10.8 588 | endloop 589 | endfacet 590 | facet normal 1 0 0 591 | outer loop 592 | vertex 55.9 -18.7 6.275 593 | vertex 55.9 0 21.8 594 | vertex 55.9 -18.7 20.725 595 | endloop 596 | endfacet 597 | facet normal 1 -0 0 598 | outer loop 599 | vertex 55.9 -26.7 21.8 600 | vertex 55.9 -18.7 20.725 601 | vertex 55.9 0 21.8 602 | endloop 603 | endfacet 604 | facet normal 1 0 0 605 | outer loop 606 | vertex 55.9 -26.7 7.25 607 | vertex 55.9 -21.15 20.725 608 | vertex 55.9 -26.7 21.8 609 | endloop 610 | endfacet 611 | facet normal 1 0 0 612 | outer loop 613 | vertex 55.9 -18.7 20.725 614 | vertex 55.9 -26.7 21.8 615 | vertex 55.9 -21.15 20.725 616 | endloop 617 | endfacet 618 | facet normal 1 0 0 619 | outer loop 620 | vertex 55.9 0 21.8 621 | vertex 55.9 -18.7 6.275 622 | vertex 55.9 0 0 623 | endloop 624 | endfacet 625 | facet normal 1 0 0 626 | outer loop 627 | vertex 55.9 -28.2 0 628 | vertex 55.9 -18.7 6.275 629 | vertex 55.9 -21.15 6.275 630 | endloop 631 | endfacet 632 | facet normal 1 0 0 633 | outer loop 634 | vertex 55.9 -21.15 20.725 635 | vertex 55.9 -26.7 7.25 636 | vertex 55.9 -21.15 6.275 637 | endloop 638 | endfacet 639 | facet normal 1 0 0 640 | outer loop 641 | vertex 55.9 -28.2 0 642 | vertex 55.9 -21.15 6.275 643 | vertex 55.9 -26.7 7.25 644 | endloop 645 | endfacet 646 | facet normal 1 0 0 647 | outer loop 648 | vertex 55.9 -28.2 0 649 | vertex 55.9 -26.7 7.25 650 | vertex 55.9 -28.2 7.25 651 | endloop 652 | endfacet 653 | facet normal 1 0 0 654 | outer loop 655 | vertex 55.9 -18.7 6.275 656 | vertex 55.9 -28.2 0 657 | vertex 55.9 0 0 658 | endloop 659 | endfacet 660 | facet normal 0 -1 0 661 | outer loop 662 | vertex 48.65 -24.9 1.5 663 | vertex 54.4 -24.9 7.25 664 | vertex 48.65 -24.9 7.25 665 | endloop 666 | endfacet 667 | facet normal 0 -1 -0 668 | outer loop 669 | vertex 54.4 -24.9 7.25 670 | vertex 48.65 -24.9 1.5 671 | vertex 54.4 -24.9 1.5 672 | endloop 673 | endfacet 674 | facet normal 0 -1 0 675 | outer loop 676 | vertex 16 -24.9 1.5 677 | vertex 21.75 -24.9 7.25 678 | vertex 16 -24.9 7.25 679 | endloop 680 | endfacet 681 | facet normal 0 -1 -0 682 | outer loop 683 | vertex 21.75 -24.9 7.25 684 | vertex 16 -24.9 1.5 685 | vertex 21.75 -24.9 1.5 686 | endloop 687 | endfacet 688 | facet normal 0 -1 0 689 | outer loop 690 | vertex 16 -1.5 7.25 691 | vertex 1.5 -1.5 21.8 692 | vertex 14.5 -1.5 7.25 693 | endloop 694 | endfacet 695 | facet normal 0 -1 0 696 | outer loop 697 | vertex 1.5 -1.5 1.5 698 | vertex 14.5 -1.5 7.25 699 | vertex 1.5 -1.5 21.8 700 | endloop 701 | endfacet 702 | facet normal 0 -1 -0 703 | outer loop 704 | vertex 14.5 -1.5 7.25 705 | vertex 1.5 -1.5 1.5 706 | vertex 14.5 -1.5 1.5 707 | endloop 708 | endfacet 709 | facet normal 0 -1 0 710 | outer loop 711 | vertex 1.5 -1.5 21.8 712 | vertex 16 -1.5 7.25 713 | vertex 54.4 -1.5 21.8 714 | endloop 715 | endfacet 716 | facet normal 0 -1 0 717 | outer loop 718 | vertex 54.4 -1.5 1.5 719 | vertex 16 -1.5 7.25 720 | vertex 16 -1.5 1.5 721 | endloop 722 | endfacet 723 | facet normal 0 -1 0 724 | outer loop 725 | vertex 16 -1.5 7.25 726 | vertex 54.4 -1.5 1.5 727 | vertex 54.4 -1.5 21.8 728 | endloop 729 | endfacet 730 | facet normal 0 1 -0 731 | outer loop 732 | vertex 16 -22.9 7.25 733 | vertex 14.5 -22.9 10.8 734 | vertex 16 -22.9 10.8 735 | endloop 736 | endfacet 737 | facet normal 0 1 0 738 | outer loop 739 | vertex 14.5 -22.9 10.8 740 | vertex 16 -22.9 7.25 741 | vertex 14.5 -22.9 7.25 742 | endloop 743 | endfacet 744 | facet normal -0 0 1 745 | outer loop 746 | vertex 14.5 -1.5 7.25 747 | vertex 16 -22.9 7.25 748 | vertex 16 -1.5 7.25 749 | endloop 750 | endfacet 751 | facet normal 0 0 1 752 | outer loop 753 | vertex 16 -22.9 7.25 754 | vertex 14.5 -1.5 7.25 755 | vertex 14.5 -22.9 7.25 756 | endloop 757 | endfacet 758 | facet normal 0 0 1 759 | outer loop 760 | vertex 55.9 0 21.8 761 | vertex 54.4 -1.5 21.8 762 | vertex 55.9 -26.7 21.8 763 | endloop 764 | endfacet 765 | facet normal 0 0 1 766 | outer loop 767 | vertex 55.9 0 21.8 768 | vertex 1.5 -1.5 21.8 769 | vertex 54.4 -1.5 21.8 770 | endloop 771 | endfacet 772 | facet normal 0 0 1 773 | outer loop 774 | vertex 1.5 -1.5 21.8 775 | vertex 0 0 21.8 776 | vertex 1.5 -25.2 21.8 777 | endloop 778 | endfacet 779 | facet normal -0 0 1 780 | outer loop 781 | vertex 0 0 21.8 782 | vertex 1.5 -1.5 21.8 783 | vertex 55.9 0 21.8 784 | endloop 785 | endfacet 786 | facet normal 0 0 1 787 | outer loop 788 | vertex 55.9 -26.7 21.8 789 | vertex 54.4 -1.5 21.8 790 | vertex 54.4 -26.7 21.8 791 | endloop 792 | endfacet 793 | facet normal -0 0 1 794 | outer loop 795 | vertex 1.5 -25.2 21.8 796 | vertex 12.5 -26.7 21.8 797 | vertex 12.5 -25.2 21.8 798 | endloop 799 | endfacet 800 | facet normal 0 0 1 801 | outer loop 802 | vertex 1.5 -25.2 21.8 803 | vertex 0 -26.7 21.8 804 | vertex 12.5 -26.7 21.8 805 | endloop 806 | endfacet 807 | facet normal 0 0 1 808 | outer loop 809 | vertex 0 -26.7 21.8 810 | vertex 1.5 -25.2 21.8 811 | vertex 0 0 21.8 812 | endloop 813 | endfacet 814 | facet normal 0 0 1 815 | outer loop 816 | vertex 14.5 -25.2 10.8 817 | vertex 16 -22.9 10.8 818 | vertex 14.5 -22.9 10.8 819 | endloop 820 | endfacet 821 | facet normal 0 0 1 822 | outer loop 823 | vertex 16 -22.9 10.8 824 | vertex 14.5 -25.2 10.8 825 | vertex 16 -26.7 10.8 826 | endloop 827 | endfacet 828 | facet normal 0 0 1 829 | outer loop 830 | vertex 14.5 -25.2 10.8 831 | vertex 14.5 -26.7 10.8 832 | vertex 16 -26.7 10.8 833 | endloop 834 | endfacet 835 | facet normal -0 0 1 836 | outer loop 837 | vertex 12.5 -25.2 10.8 838 | vertex 14.5 -26.7 10.8 839 | vertex 14.5 -25.2 10.8 840 | endloop 841 | endfacet 842 | facet normal 0 0 1 843 | outer loop 844 | vertex 14.5 -26.7 10.8 845 | vertex 12.5 -25.2 10.8 846 | vertex 12.5 -26.7 10.8 847 | endloop 848 | endfacet 849 | facet normal 0 1 -0 850 | outer loop 851 | vertex 55.9 0 0 852 | vertex 0 0 21.8 853 | vertex 55.9 0 21.8 854 | endloop 855 | endfacet 856 | facet normal 0 1 0 857 | outer loop 858 | vertex 0 0 21.8 859 | vertex 55.9 0 0 860 | vertex 0 0 0 861 | endloop 862 | endfacet 863 | facet normal 0 1 -0 864 | outer loop 865 | vertex 55.9 -21.15 6.275 866 | vertex 54.4 -21.15 20.725 867 | vertex 55.9 -21.15 20.725 868 | endloop 869 | endfacet 870 | facet normal 0 1 0 871 | outer loop 872 | vertex 54.4 -21.15 20.725 873 | vertex 55.9 -21.15 6.275 874 | vertex 54.4 -21.15 6.275 875 | endloop 876 | endfacet 877 | facet normal 0 0 -1 878 | outer loop 879 | vertex 54.4 -21.15 20.725 880 | vertex 55.9 -18.7 20.725 881 | vertex 55.9 -21.15 20.725 882 | endloop 883 | endfacet 884 | facet normal -0 0 -1 885 | outer loop 886 | vertex 55.9 -18.7 20.725 887 | vertex 54.4 -21.15 20.725 888 | vertex 54.4 -18.7 20.725 889 | endloop 890 | endfacet 891 | facet normal 0 -1 0 892 | outer loop 893 | vertex 54.4 -18.7 6.275 894 | vertex 55.9 -18.7 20.725 895 | vertex 54.4 -18.7 20.725 896 | endloop 897 | endfacet 898 | facet normal 0 -1 -0 899 | outer loop 900 | vertex 55.9 -18.7 20.725 901 | vertex 54.4 -18.7 6.275 902 | vertex 55.9 -18.7 6.275 903 | endloop 904 | endfacet 905 | facet normal -0 0 1 906 | outer loop 907 | vertex 54.4 -18.7 6.275 908 | vertex 55.9 -21.15 6.275 909 | vertex 55.9 -18.7 6.275 910 | endloop 911 | endfacet 912 | facet normal 0 0 1 913 | outer loop 914 | vertex 55.9 -21.15 6.275 915 | vertex 54.4 -18.7 6.275 916 | vertex 54.4 -21.15 6.275 917 | endloop 918 | endfacet 919 | facet normal 1 -0 0 920 | outer loop 921 | vertex 1.5 -25.2 21.8 922 | vertex 1.5 -1.5 1.5 923 | vertex 1.5 -1.5 21.8 924 | endloop 925 | endfacet 926 | facet normal 1 0 0 927 | outer loop 928 | vertex 1.5 -1.5 1.5 929 | vertex 1.5 -25.2 21.8 930 | vertex 1.5 -25.2 1.5 931 | endloop 932 | endfacet 933 | facet normal 0 1 0 934 | outer loop 935 | vertex 14.5 -25.2 10.8 936 | vertex 14.5 -25.2 1.5 937 | vertex 12.5 -25.2 10.8 938 | endloop 939 | endfacet 940 | facet normal 0 1 -0 941 | outer loop 942 | vertex 12.5 -25.2 10.8 943 | vertex 1.5 -25.2 21.8 944 | vertex 12.5 -25.2 21.8 945 | endloop 946 | endfacet 947 | facet normal 0 1 0 948 | outer loop 949 | vertex 1.5 -25.2 1.5 950 | vertex 12.5 -25.2 10.8 951 | vertex 14.5 -25.2 1.5 952 | endloop 953 | endfacet 954 | facet normal 0 1 0 955 | outer loop 956 | vertex 12.5 -25.2 10.8 957 | vertex 1.5 -25.2 1.5 958 | vertex 1.5 -25.2 21.8 959 | endloop 960 | endfacet 961 | facet normal -0 0 1 962 | outer loop 963 | vertex 1.5 -1.5 1.5 964 | vertex 14.5 -25.2 1.5 965 | vertex 14.5 -1.5 1.5 966 | endloop 967 | endfacet 968 | facet normal 0 0 1 969 | outer loop 970 | vertex 14.5 -25.2 1.5 971 | vertex 1.5 -1.5 1.5 972 | vertex 1.5 -25.2 1.5 973 | endloop 974 | endfacet 975 | facet normal 1 -0 0 976 | outer loop 977 | vertex 12.5 -26.7 21.8 978 | vertex 12.5 -25.2 10.8 979 | vertex 12.5 -25.2 21.8 980 | endloop 981 | endfacet 982 | facet normal 1 0 0 983 | outer loop 984 | vertex 12.5 -25.2 10.8 985 | vertex 12.5 -26.7 21.8 986 | vertex 12.5 -26.7 10.8 987 | endloop 988 | endfacet 989 | facet normal 0 -1 0 990 | outer loop 991 | vertex 0 -26.7 21.8 992 | vertex 12.5 -26.7 10.8 993 | vertex 12.5 -26.7 21.8 994 | endloop 995 | endfacet 996 | facet normal 0 -1 0 997 | outer loop 998 | vertex 12.5 -26.7 10.8 999 | vertex 14.5 -26.7 7.25 1000 | vertex 14.5 -26.7 10.8 1001 | endloop 1002 | endfacet 1003 | facet normal 0 -1 0 1004 | outer loop 1005 | vertex 0 -26.7 0 1006 | vertex 12.5 -26.7 10.8 1007 | vertex 0 -26.7 21.8 1008 | endloop 1009 | endfacet 1010 | facet normal 0 -1 -0 1011 | outer loop 1012 | vertex 12.5 -26.7 10.8 1013 | vertex 0 -26.7 0 1014 | vertex 14.5 -26.7 7.25 1015 | endloop 1016 | endfacet 1017 | facet normal 0 -1 -0 1018 | outer loop 1019 | vertex 14.5 -26.7 7.25 1020 | vertex 0 -26.7 0 1021 | vertex 14.5 -26.7 0 1022 | endloop 1023 | endfacet 1024 | facet normal -1 0 0 1025 | outer loop 1026 | vertex 0 -26.7 0 1027 | vertex 0 0 21.8 1028 | vertex 0 0 0 1029 | endloop 1030 | endfacet 1031 | facet normal -1 -0 0 1032 | outer loop 1033 | vertex 0 0 21.8 1034 | vertex 0 -26.7 0 1035 | vertex 0 -26.7 21.8 1036 | endloop 1037 | endfacet 1038 | endsolid OpenSCAD_Model 1039 | -------------------------------------------------------------------------------- /case/case.scad: -------------------------------------------------------------------------------- 1 | include ; 2 | 3 | PM25_X = 38.4; 4 | PM25_Y = 50.2; 5 | PM25_Z = 21.4; 6 | WALL_SIZE = 1.5; 7 | TAB_X = 5.75; 8 | TAB_Y = 5.75; 9 | PCB_SPACER = 2; 10 | PCB_THICKNESS = 1.8; 11 | BRIM = TAB_X; 12 | CABLE_BOX_X = 13; 13 | CABLE_BOX_Y = PM25_Y; 14 | CABLE_BOX_Z = PM25_Z + PCB_SPACER + PCB_THICKNESS - WALL_SIZE; 15 | BIG_VENT_CENTER = 35.9; 16 | 17 | // JST cable cutout 18 | JST_DISTANCE_FROM_EDGE = 9.3; 19 | JST_WIDTH = 11; 20 | CABLE_SPACE = 2; 21 | 22 | WS2 = WALL_SIZE * 2; 23 | 24 | // Space required above the PCB 25 | ABOVE_PCB = 15; 26 | 27 | BME_BREAKOUT_X = 14; 28 | BME_BREAKOUT_Y = 11; 29 | 30 | USB_X = 9; 31 | USB_Z = 5.6 - PCB_THICKNESS; 32 | 33 | LID_X = CABLE_BOX_X + PM25_X + WALL_SIZE; 34 | LID_Y = PM25_Y; 35 | LID_Z = ABOVE_PCB; 36 | 37 | module leftCutout() { 38 | translate([-WALL_SIZE, BRIM, 0]) 39 | linear_extrude(PM25_Z) 40 | square(size = [WALL_SIZE, PM25_Y - (2 * BRIM)]); 41 | 42 | translate([-WALL_SIZE, JST_DISTANCE_FROM_EDGE, 0]) 43 | linear_extrude(PM25_Z + PCB_THICKNESS + PCB_SPACER) 44 | square(size = [WALL_SIZE, JST_WIDTH]); 45 | } 46 | 47 | module pcbCutout() { 48 | translate([TAB_X, 0, PM25_Z]) 49 | linear_extrude(PCB_SPACER + PCB_THICKNESS + WALL_SIZE) 50 | square(size = [PM25_X - (TAB_X * 2), PM25_Y]); 51 | 52 | translate([TAB_X, -WALL_SIZE, PM25_Z + PCB_SPACER + PCB_THICKNESS]) 53 | linear_extrude(WALL_SIZE) 54 | square(size = [PM25_X - (TAB_X * 2), PM25_Y + WS2]); 55 | 56 | translate([0, TAB_Y, PM25_Z]) 57 | linear_extrude(PCB_SPACER + PCB_THICKNESS + WALL_SIZE) 58 | square(size = [PM25_X, PM25_Y - (TAB_Y * 2)]); 59 | 60 | translate([-WALL_SIZE, TAB_Y, PM25_Z + PCB_SPACER + PCB_THICKNESS]) 61 | linear_extrude(WALL_SIZE) 62 | square(size = [PM25_X + WS2, PM25_Y - (TAB_Y * 2)]); 63 | 64 | translate([0, 0, PM25_Z + PCB_SPACER]) 65 | linear_extrude(PCB_THICKNESS) 66 | square(size = [PM25_X, PM25_Y]); 67 | } 68 | 69 | module fanCutOut() { 70 | fan_outer_radius = 9; 71 | fan_inner_radius = 6; 72 | epsilon = 1; 73 | 74 | translate([PM25_X - epsilon, BIG_VENT_CENTER, PM25_Z / 2]) 75 | rotate([0, 90, 0]) 76 | difference() { 77 | $fn = 90; 78 | linear_extrude(WALL_SIZE + epsilon) 79 | circle(r = fan_outer_radius); 80 | 81 | linear_extrude(WALL_SIZE + epsilon) 82 | circle(r = fan_inner_radius); 83 | 84 | linear_extrude(WALL_SIZE + epsilon) 85 | square(size = [3.1, fan_outer_radius * 2], center = true); 86 | 87 | linear_extrude(WALL_SIZE + epsilon) 88 | square(size = [fan_outer_radius * 2, 1.6], center = true); 89 | } 90 | } 91 | 92 | module portCutOut() { 93 | port_d = 2.45; 94 | 95 | translate([PM25_X, 6 - (port_d / 2), PM25_Z - (4.2 - port_d)]) 96 | rotate([0, 90, 0]) 97 | linear_extrude(WALL_SIZE) 98 | square(size = [port_d, 12.0 + port_d]); 99 | } 100 | 101 | module connectorCutOut() { 102 | jst_height = 4.9; 103 | jst_len = 17; 104 | translate([-WALL_SIZE, PM25_Y - jst_len - 5.5, (PM25_Z / 2) + jst_height / 2]) 105 | rotate([0, 90, 0]) 106 | color("blue") 107 | linear_extrude(WALL_SIZE) 108 | square(size = [jst_height, jst_len]); 109 | } 110 | 111 | module pmcutout() { 112 | linear_extrude(PM25_Z) 113 | square(size = [PM25_X, PM25_Y]); 114 | } 115 | 116 | module pmcase(lid = false) { 117 | if (lid) { 118 | translate([0, 0, PM25_Z + PCB_SPACER + PCB_THICKNESS + WALL_SIZE]) 119 | Lid(); 120 | } 121 | translate([CABLE_BOX_X + WALL_SIZE, 0, 0]) { 122 | translate([WALL_SIZE, WALL_SIZE, WALL_SIZE]) 123 | difference() { 124 | translate([-WALL_SIZE, -WALL_SIZE, -WALL_SIZE]) 125 | linear_extrude(PM25_Z + WS2 + PCB_SPACER + PCB_THICKNESS) 126 | square(size = [PM25_X + WS2, PM25_Y + WS2]); 127 | 128 | // These cutouts model the PM 2.5 sensor 129 | pmcutout(); 130 | pcbCutout(); 131 | fanCutOut(); 132 | portCutOut(); 133 | connectorCutOut(); 134 | 135 | // This removes most of the side of the PM 2.5 sensor so we can 136 | // run a cable gutter on the side. 137 | leftCutout(); 138 | } 139 | translate([-(CABLE_BOX_X + WALL_SIZE), 0, 0]) 140 | cablecase(); 141 | } 142 | } 143 | 144 | module cablecaseCutout() { 145 | linear_extrude(CABLE_BOX_Z) 146 | square(size = [CABLE_BOX_X, CABLE_BOX_Y]); 147 | 148 | translate([CABLE_BOX_X - CABLE_SPACE, JST_DISTANCE_FROM_EDGE, CABLE_BOX_Z]) 149 | linear_extrude(WALL_SIZE) 150 | square(size = [CABLE_SPACE, JST_WIDTH]); 151 | } 152 | 153 | module cableCaseText() { 154 | text_depth = 1; 155 | text_size = 10; 156 | translate([(CABLE_BOX_X / 2) + (text_size / 2) - 2, CABLE_BOX_Y / 2, CABLE_BOX_Z + WALL_SIZE]) 157 | rotate([0, 0, 90]) 158 | linear_extrude(text_depth) 159 | text("TendAir", size = text_size, halign="center"); 160 | } 161 | 162 | module cablecase() { 163 | translate([WALL_SIZE, WALL_SIZE, WALL_SIZE]) { 164 | difference() { 165 | translate([-WALL_SIZE, -WALL_SIZE, -WALL_SIZE]) 166 | linear_extrude(PM25_Z + PCB_SPACER + PCB_THICKNESS + WALL_SIZE) 167 | square(size = [CABLE_BOX_X + WALL_SIZE, PM25_Y + WS2]); 168 | 169 | cablecaseCutout(); 170 | } 171 | //cableCaseText(); 172 | } 173 | } 174 | 175 | module BottomSlice() { 176 | text_height = 2; 177 | translate([0, JST_DISTANCE_FROM_EDGE + WALL_SIZE + JST_WIDTH, 0]) 178 | linear_extrude(PM25_Z + PCB_SPACER + PCB_THICKNESS + WS2 + LID_Z + text_height) 179 | square(size = [LID_X + WS2, PM25_Y + WS2]); 180 | } 181 | 182 | module Bottom(case = false) { 183 | difference() { 184 | pmcase(case); 185 | BottomSlice(); 186 | } 187 | } 188 | 189 | module Top(case = false) { 190 | intersection() { 191 | pmcase(case); 192 | BottomSlice(); 193 | } 194 | } 195 | 196 | module BMEVentCutOut() { 197 | header_y = 32.7; 198 | header_x = CABLE_BOX_X + WALL_SIZE + 3.1; 199 | 200 | translate([header_x - BME_BREAKOUT_X, header_y, LID_Z]) 201 | linear_extrude(WALL_SIZE) 202 | Grid(BME_BREAKOUT_X, BME_BREAKOUT_Y, inner_diameter = 2, grid_buffer = 1); 203 | } 204 | 205 | module USBCutOut() { 206 | translate([CABLE_BOX_X + WALL_SIZE + (PM25_X / 2) - (USB_X / 2), 0, 0]) 207 | rotate([90, 0, 0]) 208 | linear_extrude(WALL_SIZE) 209 | square(size = [USB_X, USB_Z]); 210 | } 211 | 212 | module SideVentCutOut() { 213 | rotate([0, -90, 0]) 214 | linear_extrude(WALL_SIZE) 215 | Grid(ABOVE_PCB, PM25_Y, inner_diameter = 2, grid_buffer = 1); 216 | } 217 | 218 | module LidCutOut() { 219 | BMEVentCutOut(); 220 | USBCutOut(); 221 | 222 | // Right side vents 223 | translate([LID_X + WALL_SIZE, 0, 0]) 224 | SideVentCutOut(); 225 | 226 | // Left side vents 227 | SideVentCutOut(); 228 | 229 | rotate([0, -90, 0]) 230 | linear_extrude(WALL_SIZE) 231 | Grid(ABOVE_PCB, PM25_Y, inner_diameter = 2, grid_buffer = 1); 232 | rotate([0, -90, 0]) 233 | linear_extrude(WALL_SIZE) 234 | Grid(ABOVE_PCB, PM25_Y, inner_diameter = 2, grid_buffer = 1); 235 | linear_extrude(LID_Z) 236 | square(size = [LID_X, PM25_Y]); 237 | } 238 | 239 | module LidText() { 240 | translate([(LID_X + WS2) / 2, ((LID_Y + WS2) / 2) + 1, LID_Z + WALL_SIZE]) { 241 | linear_extrude(1) 242 | text(text = "TendAir", valign = "center", halign = "center"); 243 | } 244 | } 245 | 246 | module Lid() { 247 | //LidText(); 248 | 249 | translate([WALL_SIZE, WALL_SIZE, 0]) 250 | difference() { 251 | translate([-WALL_SIZE, -WALL_SIZE, 0]) 252 | linear_extrude(LID_Z + WALL_SIZE) 253 | square(size = [LID_X + WS2, LID_Y + WS2]); 254 | LidCutOut(); 255 | } 256 | 257 | // Heat isolation wall 258 | translate([CABLE_BOX_X + WS2 + 7, WALL_SIZE, 0]) 259 | linear_extrude(LID_Z) 260 | square(size = [WALL_SIZE, PM25_Y]); 261 | } 262 | 263 | rendering = "full"; 264 | lid = "disabled"; 265 | should_lid = lid == "enabled" ? true : false; 266 | 267 | if (rendering == "full") { 268 | pmcase(should_lid); 269 | } 270 | 271 | if (rendering == "top") { 272 | rotate([270, 0, 0]) 273 | Top(false); 274 | } 275 | 276 | if (rendering == "top-with-lid") { 277 | rotate([270, 0, 0]) 278 | Top(true); 279 | } 280 | 281 | if (rendering == "bottom") { 282 | rotate([90, 0, 0]) 283 | Bottom(false); 284 | } 285 | 286 | if (rendering == "bottom-with-lid") { 287 | rotate([90, 0, 0]) 288 | Bottom(true); 289 | } 290 | -------------------------------------------------------------------------------- /case/grid.scad: -------------------------------------------------------------------------------- 1 | function round_down(n) = n - (n % 1); 2 | 3 | module Grid(x, y, inner_diameter = 5, grid_buffer = 2, center = false) { 4 | diameter = inner_diameter + grid_buffer; 5 | radius = diameter / 2; 6 | x_n = round_down(x / diameter); 7 | y_n = round_down(y / diameter); 8 | $fn = 8; 9 | 10 | y_diff = y - (y_n * diameter); 11 | x_diff = x - (x_n * diameter); 12 | 13 | move = center ? 14 | [radius - (diameter * x_n) / 2, radius - (diameter * y_n) / 2, 0] 15 | : 16 | [radius + (x_diff / 2), radius + (y_diff / 2), 0]; 17 | 18 | translate(move) 19 | for (j = [0 : (y_n - 1)]) { 20 | for (i = [0 : (x_n - 1)]) { 21 | translate([i * diameter, j * diameter, 0]) 22 | circle(d = inner_diameter); 23 | } 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /client.rb: -------------------------------------------------------------------------------- 1 | # Sample program for listening to AQ / Temp / RH information. 2 | # 3 | # The server that runs on the ESP8266 broadcasts data via UDP on port 9000. 4 | # This program just listens for that data and decodes it 5 | 6 | require "socket" 7 | require "ipaddr" 8 | require "json" 9 | 10 | MULTICAST_ADDR = "224.0.0.1" 11 | BIND_ADDR = "0.0.0.0" 12 | PORT = 9000 13 | 14 | AQ = Struct.new(:pm1_0_standard, :pm2_5_standard, :pm10_standard, 15 | :pm1_0_env, :pm2_5_env, 16 | :concentration_unit, 17 | 18 | # These fields are "number of particles beyond N um 19 | # per 0.1L of air". These numbers are multiplied by 20 | # 10, so 03um == "number of particles beyond 0.3um 21 | # in 0.1L of air" 22 | :particle_03um, :particle_05um, :particle_10um, 23 | :particle_25um, :particle_50um, :particle_100um) 24 | 25 | TempRH = Struct.new(:temp, :rh) 26 | 27 | class Combined 28 | attr_reader :time, :mac, :record_id, :aq, :temprh 29 | 30 | def initialize time, mac, record_id, aq, temprh 31 | @time = time 32 | @mac = mac 33 | @record_id = record_id 34 | @aq = aq 35 | @temprh = temprh 36 | end 37 | end 38 | 39 | if_addr = Socket.getifaddrs.find { |s| s.addr.ipv4? && !s.addr.ipv4_loopback? } 40 | p if_addr.addr.ip_address 41 | 42 | socket = UDPSocket.new 43 | membership = IPAddr.new(MULTICAST_ADDR).hton + IPAddr.new(BIND_ADDR).hton 44 | 45 | socket.setsockopt(:IPPROTO_IP, :IP_ADD_MEMBERSHIP, membership) 46 | socket.setsockopt(:IPPROTO_IP, :IP_MULTICAST_TTL, 1) 47 | socket.setsockopt(:SOL_SOCKET, :SO_REUSEPORT, 1) 48 | 49 | socket.bind(BIND_ADDR, PORT) 50 | 51 | loop do 52 | m, _ = socket.recvfrom(2000) 53 | record = JSON.load(m) 54 | 55 | data = record["aq"].unpack("m0").first 56 | unpack = data.unpack('CCnn14') 57 | crc = 0x42 + 0x4d + 28 + data.bytes.drop(4).first(26).inject(:+) 58 | unless crc != unpack.last 59 | aq = AQ.new(*unpack.drop(3).first(12)) 60 | temprh = TempRH.new(record["temperature"] / 100.0, record["humidity"] / 100.0) 61 | rec = Combined.new(Time.now.utc, record["mac"], record["record_id"], aq, temprh) 62 | 63 | p rec 64 | end 65 | end 66 | 67 | -------------------------------------------------------------------------------- /firmware/.gitignore: -------------------------------------------------------------------------------- 1 | .pio 2 | -------------------------------------------------------------------------------- /firmware/Gemfile: -------------------------------------------------------------------------------- 1 | source "https://rubygems.org" 2 | 3 | gem "mqtt" 4 | gem "influxdb" 5 | -------------------------------------------------------------------------------- /firmware/Gemfile.lock: -------------------------------------------------------------------------------- 1 | GEM 2 | remote: https://rubygems.org/ 3 | specs: 4 | influxdb (0.8.1) 5 | mqtt (0.5.0) 6 | 7 | PLATFORMS 8 | ruby 9 | 10 | DEPENDENCIES 11 | influxdb 12 | mqtt 13 | -------------------------------------------------------------------------------- /firmware/Makefile: -------------------------------------------------------------------------------- 1 | RUBY = ruby 2 | PLATFORMIO = platformio 3 | 4 | NODE_NAME ?= esp8266aq 5 | MQTT_SERVER ?= "" 6 | MQTT_PORT ?= 1883 7 | MQTT_PREFIX ?= esp8266aq 8 | 9 | CFLAGS="-DNODE_NAME='\"$(NODE_NAME)\"' -DMQTT_SERVER='\"$(MQTT_SERVER)\"' -DMQTT_PORT=$(MQTT_PORT) -DMQTT_PREFIX='\"$(MQTT_PREFIX)\"'" 10 | 11 | 12 | compile: 13 | BUILD_FLAGS=$(CFLAGS) platformio run 14 | 15 | flash: 16 | $(RUBY) utils/prog.rb 17 | BUILD_FLAGS=$(CFLAGS) platformio run -t upload 18 | 19 | uploadfs: 20 | $(RUBY) utils/prog.rb 21 | platformio run -t uploadfs 22 | -------------------------------------------------------------------------------- /firmware/README.md: -------------------------------------------------------------------------------- 1 | # My ESP8266 + Plantower AQ Sensor Project Firmware 2 | 3 | This is the firmware for the project. I wrote an Arduino sketch. I'd rather 4 | have written it in C, but writing an Arduino sketch seemed like the fastest way 5 | to get the project done, and I'd rather be finished than happy (this is a joke, 6 | I am perfectly happy even though it isn't C). 7 | 8 | ## Prerequisites 9 | 10 | This firmware uses [PlatformIO](https://platformio.org). Make sure you install 11 | PlatformIO first! 12 | 13 | ## MQTT 14 | 15 | This firmware uses MQTT to publish data to an MQTT server. That means the 16 | module must be configured with connection information so it knows where to 17 | connect. Setting up an MQTT server is outside the scope of this document, but 18 | I've heard that [Home Assistant](https://www.home-assistant.io) makes it easy. 19 | 20 | When compiling the firmware, you'll need the following information about the 21 | MQTT connection: 22 | 23 | 1. The node name. A unique name given to this module. The name can be anything as long as it's unique. For example, I'm using `office-aq` for the sensor in my office. 24 | 2. The MQTT server hostname. (Make sure it's not an mDNS name) 25 | 3. The MQTT prefix. This is a prefix string that indicates where the sensor is. For my office I'm using `home/office/esp8266aq`. 26 | 27 | ## Compiling and Uploading 28 | 29 | The MQTT configuration can be specified by environment variables. 30 | 31 | I compile and flash my firmware like this: 32 | 33 | ``` 34 | $ MQTT_SERVER=tender.home NODE_NAME=office-aq MQTT_PREFIX=home/office/esp8266aq make flash 35 | ``` 36 | 37 | If this is your first time flashing the chip, make sure to read the next step!! 38 | 39 | ## IMPORTANT: First Time Uploading 40 | 41 | This firmware makes use of a special filesystem that is flashed independently 42 | of the normal runtime firmware. You need to upload the file system 43 | independently of the normal firmware. This step writes all of the file in the 44 | `data` directory to the ESP. 45 | 46 | To upload the file system, do: 47 | 48 | ``` 49 | $ make uploadfs 50 | ``` 51 | 52 | You only need to upload the filesystem whenever things in the `data` directory change. 53 | 54 | 1. `make flash` to compile stuff and upload it to the ESP 55 | 56 | ## First Time Connecting 57 | 58 | The first time the chip boots, by default the ESP8266 59 | will create an ad-hoc network. Connect to that network and configure the chip 60 | with your wifi credentials. After it connects to your network it will start 61 | broadcasting sensor information to your MQTT server. 62 | 63 | ## Development 64 | 65 | My typical development process looks like this: 66 | 67 | 1. Edit code 68 | 2. Run `make flash && ruby utils/serial-client.rb` 69 | -------------------------------------------------------------------------------- /firmware/data/app.js: -------------------------------------------------------------------------------- 1 | const base_url = window.location.hash.substring(1); 2 | const status_url = base_url + "/status.json"; 3 | const config_url = base_url + "/config.json"; 4 | 5 | function applyData(data) { 6 | for (let el of document.querySelectorAll(".js-raw-json")) { 7 | el.innerText = JSON.stringify(data, null, 2); 8 | } 9 | 10 | const class_mapping = { 11 | ".js-temperature": "temperature", 12 | ".js-humidity": "humidity", 13 | ".js-pm25": "pm2_5_standard" 14 | }; 15 | 16 | getMeasurement = (name) => data.measurements.find(m => m.name === name).value; 17 | 18 | for (let selector in class_mapping) { 19 | const name = class_mapping[selector]; 20 | 21 | const measurement = data.measurements.find(m => m.name === name); 22 | const value = measurement.value; 23 | const time_since = data.current_time - measurement.last_measured_at; 24 | 25 | for (let cell_el of document.querySelectorAll(selector)) { 26 | const value_el = cell_el.querySelector(".js-value"); 27 | 28 | cell_el.classList.toggle("connected", time_since < 10000); 29 | value_el.innerText = Math.round(value); 30 | } 31 | } 32 | } 33 | 34 | async function updateData() { 35 | let response = await fetch(status_url); 36 | let data = await response.json(); 37 | 38 | applyData(data); 39 | } 40 | 41 | async function onSubmitSettingsForm(ev) { 42 | ev.preventDefault(); 43 | const form_el = ev.target; 44 | 45 | let config = {} 46 | for (let input_el of form_el.querySelectorAll("*[name]")) { 47 | config[input_el.name] = input_el.value; 48 | } 49 | console.log(config); 50 | 51 | const response = await fetch(config_url, { 52 | method: 'POST', 53 | headers: { 54 | 'Content-Type': 'application/json' 55 | }, 56 | body: JSON.stringify(config) 57 | }); 58 | console.log(response); 59 | await response.json(); 60 | 61 | window.location.reload(); 62 | 63 | return false; 64 | } 65 | 66 | async function setupForm() { 67 | const form_el = document.querySelector("form"); 68 | 69 | form_el.addEventListener("submit", onSubmitSettingsForm); 70 | 71 | let response = await fetch(config_url); 72 | let config = await response.json(); 73 | for (let input_el of form_el.querySelectorAll("*[name]")) { 74 | input_el.value = config[input_el.name] || ""; 75 | } 76 | } 77 | 78 | window.addEventListener('load', (event) => { 79 | setInterval(updateData, 1000); 80 | 81 | setupForm(); 82 | }); 83 | -------------------------------------------------------------------------------- /firmware/data/config.json: -------------------------------------------------------------------------------- 1 | {} 2 | -------------------------------------------------------------------------------- /firmware/data/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | ESP8266 Air Quality 6 | 7 | 57 | 58 | 59 |
60 |

ESP8266 Air Quality

61 | 62 |
63 |
64 |
🌡️
65 |
Temperature
66 |
°C
67 |
68 |
69 |
🌧️
70 |
Humidity
71 |
%
72 |
73 |
74 |
🌫️
75 |
PM 2.5
76 |
μg/m³
77 |
78 |
79 | 80 |
81 | 82 |

Settings

83 | 84 |
85 |
86 | 87 | 88 |
89 | 90 |
91 | 92 | 93 |
94 | 95 |
96 | 97 | 98 |
99 | 100 |
101 | 102 | 103 |
104 | 105 | 106 |
107 | 108 |
109 | 110 |
111 | Debug JSON 112 | 

113 |       

114 |     

115 |   
116 | 
117 | 


--------------------------------------------------------------------------------
/firmware/platformio.ini:
--------------------------------------------------------------------------------
 1 | ; PlatformIO Project Configuration File
 2 | ;
 3 | ;   Build options: build flags, source filter
 4 | ;   Upload options: custom upload port, speed and extra flags
 5 | ;   Library options: dependencies, extra library storages
 6 | ;   Advanced options: extra scripting
 7 | ;
 8 | ; Please visit documentation for the other options and examples
 9 | ; https://docs.platformio.org/page/projectconf.html
10 | 
11 | [env]
12 | platform = espressif8266
13 | board = esp01_1m
14 | framework = arduino
15 | board_build.filesystem = littlefs
16 | 
17 | lib_deps =
18 |   tzapu/WifiManager @ ^0.15.0
19 |   knolleary/PubSubClient @ ^2.8
20 |   adafruit/Adafruit Unified Sensor @ ^1.1.4
21 |   adafruit/Adafruit BME280 Library @ ^2.1.2
22 |   bblanchon/ArduinoJson
23 | 
24 | build_flags = ${sysenv.BUILD_FLAGS}
25 | 
26 | [env:nodemcu]
27 | 


--------------------------------------------------------------------------------
/firmware/src/firmware.ino:
--------------------------------------------------------------------------------
  1 | #include 
  2 | #include 
  3 | #include 
  4 | #include 
  5 | #include 
  6 | #include 
  7 | #include 
  8 | #include 
  9 | #include 
 10 | #include 
 11 | #include 
 12 | #include 
 13 | 
 14 | #ifndef NODE_NAME
 15 | #define NODE_NAME "esp8266aq"
 16 | #endif
 17 | 
 18 | #ifndef MQTT_SERVER
 19 | #define MQTT_SERVER ""
 20 | #endif
 21 | 
 22 | #ifndef MQTT_PORT
 23 | #define MQTT_PORT 1833
 24 | #endif
 25 | 
 26 | #ifndef MQTT_PREFIX
 27 | #define MQTT_PREFIX "esp8266aq"
 28 | #endif
 29 | 
 30 | #define LED_PIN 2
 31 | #define G2_PIN 14
 32 | #define G3_PIN 12
 33 | 
 34 | Adafruit_BME280 bme;
 35 | 
 36 | WiFiClient espClient;
 37 | PubSubClient client(espClient);
 38 | ESP8266WebServer server(80);
 39 | 
 40 | Config config;
 41 | 
 42 | FloatMeasurement measurement_temperature("temperature", &config);
 43 | FloatMeasurement measurement_humidity("humidity", &config);
 44 | FloatMeasurement measurement_dewpoint("dewpoint", &config);
 45 | 
 46 | #define NUM_MEASUREMENTS_PMS5003 12
 47 | UnsignedIntMeasurement measurements_pms5003[NUM_MEASUREMENTS_PMS5003] = {
 48 |   UnsignedIntMeasurement("pm1_0_standard", &config),
 49 |   UnsignedIntMeasurement("pm2_5_standard", &config),
 50 |   UnsignedIntMeasurement("pm10_standard", &config),
 51 |   UnsignedIntMeasurement("pm1_0_env", &config),
 52 |   UnsignedIntMeasurement("pm2_5_env", &config),
 53 |   UnsignedIntMeasurement("concentration_unit", &config),
 54 |   UnsignedIntMeasurement("particles_03um", &config),
 55 |   UnsignedIntMeasurement("particles_05um", &config),
 56 |   UnsignedIntMeasurement("particles_10um", &config),
 57 |   UnsignedIntMeasurement("particles_25um", &config),
 58 |   UnsignedIntMeasurement("particles_50um", &config),
 59 |   UnsignedIntMeasurement("particles_100um", &config)
 60 | };
 61 | 
 62 | UnsignedIntMeasurement measurement_co2("co2", &config);
 63 | 
 64 | struct PMS5003 {
 65 |   byte input_string[32];
 66 |   int input_idx;
 67 | 
 68 |   PMS5003() : input_idx(0) {}
 69 | 
 70 |   void process_byte(byte in) {
 71 |     if(input_idx == 32) {
 72 |       input_idx = 0;
 73 |     }
 74 | 
 75 |     input_string[input_idx++] = in;
 76 |     if (input_idx == 1 && input_string[0] != 0x42) {
 77 |       input_idx = 0;
 78 |     } else if (input_idx == 2 && input_string[1] != 0x4d) {
 79 |       input_idx = 0;
 80 |     }
 81 |   }
 82 | 
 83 |   void reset_input() {
 84 |     input_idx = 0;
 85 |   }
 86 | 
 87 |   unsigned int get_value(int idx) {
 88 |     byte high = input_string[4 + idx * 2];
 89 |     byte low  = input_string[4 + idx * 2 + 1];
 90 |     return (high << 8) | low;
 91 |   }
 92 | 
 93 |   /* Are we a full, valid packet */
 94 |   bool is_valid_packet() {
 95 |     if (input_idx != 32)
 96 |       return false;
 97 | 
 98 |     /* TODO: check crc */
 99 | 
100 |     return true;
101 |   }
102 | };
103 | 
104 | PMS5003 pms5003;
105 | 
106 | typedef StaticJsonDocument<512> ConfigJsonDocument;
107 | 
108 | static void loadConfigurationFromDoc(Config &config, ConfigJsonDocument &doc) {
109 |   if (doc["mqtt_server"])
110 |     config.mqtt_server = doc["mqtt_server"].as();
111 | 
112 |   if (doc["mqtt_port"])
113 |     config.mqtt_port = doc["mqtt_port"].as().toInt();
114 | 
115 |   if (doc["mqtt_prefix"])
116 |     config.mqtt_prefix = doc["mqtt_prefix"].as();
117 | }
118 | 
119 | void loadConfiguration(Config &config) {
120 |   /* Load defaults */
121 |   config.name = NODE_NAME;
122 |   config.mqtt_server = MQTT_SERVER;
123 |   config.mqtt_port = MQTT_PORT;
124 |   config.mqtt_prefix = MQTT_PREFIX;
125 | 
126 |   if (LittleFS.exists("config.json")) {
127 |     File file = LittleFS.open("config.json", "r");
128 | 
129 |     ConfigJsonDocument doc;
130 |     DeserializationError error = deserializeJson(doc, file);
131 | 
132 |     if (!error) {
133 |       loadConfigurationFromDoc(config, doc);
134 |       return;
135 |     }
136 | 
137 |     file.close();
138 |   }
139 | 
140 | }
141 | 
142 | void configModeCallback(WiFiManager *myWiFiManager) {
143 |   Serial.println("Entered config mode");
144 |   Serial.println(WiFi.softAPIP());
145 |   Serial.println(myWiFiManager->getConfigPortalSSID());
146 | }
147 | 
148 | String getContentType(String filename) {
149 |   if (filename.endsWith(".html")) return "text/html";
150 |   else if (filename.endsWith(".css")) return "text/css";
151 |   else if (filename.endsWith(".js")) return "application/javascript";
152 |   else if (filename.endsWith(".json")) return "application/json";
153 |   else if (filename.endsWith(".ico")) return "image/x-icon";
154 |   return "text/plain";
155 | }
156 | 
157 | bool handleFileRead(String path) {
158 |   if (path.endsWith("/"))
159 |     path += "index.html";
160 | 
161 |   String contentType = getContentType(path);
162 |   if (LittleFS.exists(path)) {
163 |     File file = LittleFS.open(path, "r");
164 |     server.streamFile(file, contentType);
165 |     file.close();
166 |     return true;
167 |   }
168 | 
169 |   return false;
170 | }
171 | 
172 | void webHandleStatus() {
173 |   String json;
174 |   json.reserve(1024);
175 |   json += "{\"measurements\": [";
176 | 
177 |   measurement_temperature.publish(json);
178 |   measurement_humidity.publish(json);
179 |   for(int i = 0; i < NUM_MEASUREMENTS_PMS5003; i++) {
180 |     measurements_pms5003[i].publish(json);
181 |   }
182 |   json.remove(json.lastIndexOf(",")); // remove trailing comma
183 | 
184 |   json += "], \"current_time\": ";
185 |   json += millis();
186 |   json += ", \"mqtt\": {\"connected\": ";
187 |   json += client.connected() ? "true" : "false";
188 |   json += ", \"server\": \"";
189 |   json += config.mqtt_server;
190 |   json += "\", \"port\": ";
191 |   json += config.mqtt_port;
192 |   json += "}, \"esp8266\": {\"heap_free\":";
193 |   json += ESP.getFreeHeap();
194 |   json += ", \"heap_fragmentation\": ";
195 |   json += ESP.getHeapFragmentation();
196 |   json += ", \"heap_max_free_block_size\": ";
197 |   json += ESP.getMaxFreeBlockSize();
198 |   json += "}}";
199 | 
200 |   server.sendHeader("Access-Control-Allow-Origin", "*");
201 |   server.send(200, "application/json", json);
202 | }
203 | 
204 | void webHandleUpdateConfig() {
205 |   String body = server.arg("plain");
206 | 
207 |   File file = LittleFS.open("config.json", "w");
208 |   file.print(body);
209 |   file.close();
210 | 
211 |   server.send(200, "text/json", "{\"success\":true}" );
212 | 
213 |   ESP.restart();
214 | }
215 | 
216 | void webHandleReadConfig() {
217 |   String json;
218 |   json.reserve(1024);
219 | 
220 |   json += "{\"name\": \"";
221 |   json += config.name;
222 |   json += "\", \"mqtt_server\": \"";
223 |   json += config.mqtt_server;
224 |   json += "\", \"mqtt_port\": \"";
225 |   json += config.mqtt_port;
226 |   json += "\", \"mqtt_prefix\": \"";
227 |   json += config.mqtt_prefix;
228 |   json += "\"}";
229 | 
230 |   server.sendHeader("Access-Control-Allow-Origin", "*");
231 |   server.send(200, "application/json", json);
232 | }
233 | 
234 | void setup() {
235 |   WiFiManager wifiManager;
236 | 
237 |   pinMode(G2_PIN, INPUT);
238 |   pinMode(G3_PIN, INPUT);
239 |   pinMode(LED_PIN, OUTPUT);
240 |   digitalWrite(2, HIGH);
241 | 
242 |   Serial.begin(9600);
243 |   wifiManager.setAPCallback(configModeCallback);
244 |   wifiManager.autoConnect();
245 | 
246 |   randomSeed(micros());
247 | 
248 |   while (WiFi.status() != WL_CONNECTED) {
249 |     delay(500);
250 |   }
251 | 
252 |   if (!bme.begin(0x76)) {
253 |     Serial.println("Couldn't find BME280 sensor");
254 |     delay(50);
255 |   }
256 |   LittleFS.begin();
257 |   loadConfiguration(config);
258 |   Serial.print("Node name: ");
259 |   Serial.println(config.name);
260 |   Serial.print("MQTT Server: ");
261 |   Serial.println(config.mqtt_server);
262 |   Serial.print("MQTT Port: ");
263 |   Serial.println(config.mqtt_port);
264 |   Serial.print("MQTT Prefix: ");
265 |   Serial.println(config.mqtt_prefix);
266 |   Serial.print("GPIO: ");
267 |   Serial.print(digitalRead(G2_PIN));
268 |   Serial.println(digitalRead(G3_PIN));
269 | 
270 |   MDNS.begin(config.name);
271 | 
272 |   ArduinoOTA.begin();
273 | 
274 |   Serial.flush();
275 |   Serial.swap(); // Switch to sensor
276 | 
277 |   server.on("/config.json", HTTP_POST, webHandleUpdateConfig);
278 |   server.on("/config.json", HTTP_GET, webHandleReadConfig);
279 |   server.on("/status.json", HTTP_GET, webHandleStatus);
280 |   server.onNotFound([]() {
281 |     if (!handleFileRead(server.uri()))
282 |       server.send(404, "text/plain", "404: Not Found");
283 |   });
284 | 
285 |   server.begin();
286 | }
287 | 
288 | void mqtt_reconnect() {
289 |   static unsigned long last_attempt = 0;
290 |   if (millis() - last_attempt < 5000) {
291 |     return;
292 |   }
293 | 
294 |   last_attempt = millis();
295 |   Serial.swap();
296 |   if (config.mqtt_server.length() && config.mqtt_port) {
297 |     if (WiFi.hostByName(config.mqtt_server.c_str(), config.address)) {
298 |       client.setServer(config.address, config.mqtt_port);
299 |       String clientId = config.name;
300 |       if(client.connect(clientId.c_str())) {
301 |         Serial.println("Connected\n");
302 |       } else {
303 |         Serial.println(clientId);
304 |         Serial.println(config.address);
305 |         Serial.print("failed, rc=");
306 |         Serial.println(client.state());
307 |       }
308 |     } else {
309 |       Serial.print("Couldn't find address: ");
310 |       Serial.println(config.mqtt_server);
311 |     }
312 | 
313 |   }
314 |   Serial.flush();
315 |   Serial.swap();
316 | }
317 | 
318 | void readI2CSensors(void) {
319 |   static unsigned long last_time_measurement = 0;
320 | 
321 |   if(millis() - last_time_measurement > 1000){
322 |     last_time_measurement = millis();
323 | 
324 |     float temp = bme.readTemperature();
325 |     float rh = bme.readHumidity();
326 | 
327 |     // https://bmcnoldy.rsmas.miami.edu/humidity_conversions.pdf
328 |     float x = (17.625 * temp) / (243.04 + temp);
329 |     float l = log(rh / 100.0);
330 |     float dewpoint = 243.04 * (l + x) / (17.625 - l - x);
331 | 
332 |     measurement_temperature.record(temp);
333 |     measurement_humidity.record(rh);
334 |     measurement_dewpoint.record(dewpoint);
335 | 
336 |     measurement_temperature.publish(&client);
337 |     measurement_humidity.publish(&client);
338 |     measurement_dewpoint.publish(&client);
339 | 
340 |     int co2 = readCO2();
341 |     if (co2 > 0) {
342 |       measurement_co2.record(co2);
343 |       measurement_co2.publish(&client);
344 |     }
345 | 
346 |     // Publish to the serial client if G2 pin is HIGH
347 |     if (digitalRead(G2_PIN) == HIGH) {
348 |       Serial.flush();
349 |       Serial.swap();
350 |       measurement_temperature.publish(&Serial);
351 |       measurement_humidity.publish(&Serial);
352 |       measurement_dewpoint.publish(&Serial);
353 |       if (co2 > 0) {
354 |         measurement_co2.publish(&Serial);
355 |       }
356 |       Serial.flush();
357 |       Serial.swap();
358 |     }
359 |   }
360 | }
361 | 
362 | void loop() {
363 |   if (client.connected()) {
364 |     client.loop();
365 |   } else {
366 |     mqtt_reconnect();
367 |   }
368 | 
369 |   if (client.connected()) {
370 |     digitalWrite(LED_PIN, LOW); // LOW == ON
371 |   } else {
372 |     digitalWrite(LED_PIN, HIGH);
373 |   }
374 | 
375 |   server.handleClient();
376 |   ArduinoOTA.handle();
377 | 
378 |   /* If there is more than one packet in the buffer we only want the most recent */
379 |   while (Serial.available() > 32) {
380 |     Serial.read();
381 |     pms5003.reset_input();
382 |   }
383 | 
384 |   while (Serial.available()) {
385 |     pms5003.process_byte(Serial.read());
386 | 
387 |     if (pms5003.is_valid_packet()) {
388 |       if (!client.connected()) {
389 |         Serial.swap();
390 |         Serial.println("MQTT client is not connected");
391 |         Serial.flush();
392 |         Serial.swap();
393 |       }
394 | 
395 |       for(int i = 0; i < NUM_MEASUREMENTS_PMS5003; i++) {
396 |         unsigned int value = pms5003.get_value(i);
397 | 
398 |         measurements_pms5003[i].record(value);
399 |         measurements_pms5003[i].publish(&client);
400 |       }
401 | 
402 |       // Publish to the serial client if G2 pin is HIGH
403 |       if (digitalRead(G2_PIN) == HIGH) {
404 |         Serial.flush();
405 |         Serial.swap();
406 |         for(int i = 0; i < NUM_MEASUREMENTS_PMS5003; i++) {
407 |           measurements_pms5003[i].publish(&Serial);
408 |         }
409 |         Serial.flush();
410 |         Serial.swap();
411 |       }
412 |     }
413 |   }
414 | 
415 |   readI2CSensors();
416 | }
417 | 


--------------------------------------------------------------------------------
/firmware/src/measurement.cpp:
--------------------------------------------------------------------------------
 1 | #include 
 2 | #include 
 3 | #include 
 4 | #include 
 5 | 
 6 | const char * Measurement::topic(void) {
 7 |   const char * prefix = cfg->mqtt_prefix.c_str();
 8 |   if (last_prefix != prefix) {
 9 |     last_prefix = prefix;
10 |     memset(full_topic, 0, 256);
11 |     sprintf(full_topic, "%s/%s", last_prefix, name);
12 |   }
13 | 
14 |   return full_topic;
15 | }
16 | 
17 | void Measurement::broadcast(PubSubClient * client, char * formatted_value) {
18 |   client->publish(topic(), formatted_value);
19 | }
20 | 
21 | void Measurement::broadcast(HardwareSerial * serial, char * formatted_value) {
22 |   serial->print(topic());
23 |   serial->print(": ");
24 |   serial->println(formatted_value);
25 | }
26 | 
27 | void FloatMeasurement::record(float value) {
28 |   last_float = value;
29 |   last_measured_at = millis();
30 | }
31 | 
32 | void FloatMeasurement::publish(PubSubClient * client) {
33 |   char formatted_value[256];
34 |   sprintf(formatted_value, "%.2f", last_float);
35 |   broadcast(client, formatted_value);
36 | }
37 | 
38 | void FloatMeasurement::publish(HardwareSerial * serial) {
39 |   char formatted_value[256];
40 |   sprintf(formatted_value, "%.2f", last_float);
41 |   broadcast(serial, formatted_value);
42 | }
43 | 
44 | void FloatMeasurement::publish(String &json) {
45 |   json += "{\"name\": \"";
46 |   json += name;
47 |   json += "\", \"value\": ";
48 |   json += last_float;
49 |   json += ", \"last_measured_at\": ";
50 |   json += last_measured_at;
51 |   json += "}, ";
52 | }
53 | 
54 | void UnsignedIntMeasurement::record(unsigned int value) {
55 |   last_value = value;
56 |   last_measured_at = millis();
57 | }
58 | 
59 | void UnsignedIntMeasurement::publish(PubSubClient * client) {
60 |   char formatted_value[256];
61 |   sprintf(formatted_value, "%u", last_value);
62 |   broadcast(client, formatted_value);
63 | }
64 | 
65 | void UnsignedIntMeasurement::publish(HardwareSerial * serial) {
66 |   char formatted_value[256];
67 |   sprintf(formatted_value, "%u", last_value);
68 |   broadcast(serial, formatted_value);
69 | }
70 | 
71 | void UnsignedIntMeasurement::publish(String &json) {
72 |   json += "{\"name\": \"";
73 |   json += name;
74 |   json += "\", \"value\": ";
75 |   json += last_value;
76 |   json += ", \"last_measured_at\": ";
77 |   json += last_measured_at;
78 |   json += "}, ";
79 | }
80 | 


--------------------------------------------------------------------------------
/firmware/src/measurement.h:
--------------------------------------------------------------------------------
 1 | struct Config {
 2 |   String name;
 3 | 
 4 |   String mqtt_server;
 5 |   unsigned int mqtt_port;
 6 |   String mqtt_prefix;
 7 |   IPAddress address;
 8 | };
 9 | 
10 | struct Measurement {
11 |   const char *name;
12 |   Config * cfg;
13 | 
14 |   unsigned long last_measured_at;
15 |   const char * last_prefix;
16 |   char full_topic[256];
17 | 
18 |   Measurement(const char *name, Config * cfg):
19 |     name(name),
20 |     cfg(cfg),
21 |     last_measured_at(0),
22 |     last_prefix(NULL)
23 |     {};
24 | 
25 |   const char * topic(void);
26 |   void broadcast(PubSubClient * client, char * formatted_value);
27 |   void broadcast(HardwareSerial * serial, char * formatted_value);
28 | };
29 | 
30 | struct FloatMeasurement : Measurement {
31 |   float last_float;
32 | 
33 |   FloatMeasurement(const char *name, Config * cfg):
34 |     Measurement(name, cfg),
35 |     last_float(0.0)
36 |     { };
37 | 
38 |   void record(float value);
39 |   void publish(PubSubClient * client);
40 |   void publish(HardwareSerial * serial);
41 |   void publish(String &json);
42 | };
43 | 
44 | struct UnsignedIntMeasurement : Measurement {
45 |   unsigned int last_value;
46 | 
47 |   UnsignedIntMeasurement(const char *name, Config * cfg):
48 |     Measurement(name, cfg),
49 |     last_value(0)
50 |     { };
51 | 
52 |   void record(unsigned int value);
53 |   void publish(PubSubClient * client);
54 |   void publish(HardwareSerial * serial);
55 |   void publish(String &json);
56 | };
57 | 


--------------------------------------------------------------------------------
/firmware/src/tp6703.cpp:
--------------------------------------------------------------------------------
 1 | #include 
 2 | #include 
 3 | 
 4 | #define ADDR_6713  0x15
 5 | 
 6 | int readCO2(void)
 7 | {
 8 |   int data[4];
 9 |   Wire.beginTransmission(ADDR_6713);
10 |   Wire.write(0x04);
11 |   Wire.write(0x13);
12 |   Wire.write(0x8B);
13 |   Wire.write(0x00);
14 |   Wire.write(0x01);
15 | 
16 |   // end transmission
17 |   Wire.endTransmission();
18 |   // read report of current gas measurement in ppm
19 |   delay(10);
20 |   Wire.requestFrom(ADDR_6713, 4);
21 |   if (Wire.available() == 4) {
22 |     data[0] = Wire.read();
23 |     data[1] = Wire.read();
24 |     data[2] = Wire.read();
25 |     data[3] = Wire.read();
26 |   } else {
27 |     return -1;
28 |   }
29 | 
30 |   return ((data[2] * 0xFF ) + data[3]);
31 | }
32 | 


--------------------------------------------------------------------------------
/firmware/src/tp6703.h:
--------------------------------------------------------------------------------
1 | int readCO2(void);
2 | 


--------------------------------------------------------------------------------
/firmware/utils/esp_client.rb:
--------------------------------------------------------------------------------
  1 | begin
  2 |   require "uchip/mcp2221"
  3 | rescue LoadError
  4 |   warn "UChip gem insn't installed, installing now"
  5 |   Gem.install "uchip"
  6 |   retry
  7 | end
  8 | 
  9 | class ESPClient
 10 |   FLASH_PIN = 0
 11 |   RST_PIN   = 1
 12 |   ESP_PIN14 = 2
 13 |   ESP_PIN12 = 3
 14 | 
 15 |   def self.open
 16 |     # Find the first connected chip
 17 |     chip = UChip::MCP2221.first
 18 |     return unless chip
 19 |     client = new chip
 20 |     client.ensure_pin_settings
 21 |     client
 22 |   end
 23 | 
 24 |   attr_reader :chip
 25 | 
 26 |   def initialize chip
 27 |     @chip = chip
 28 |   end
 29 | 
 30 |   def i2c_on address
 31 |     @chip.i2c_on address
 32 |   end
 33 | 
 34 |   # Make sure the power-up settings for the MCP are correct
 35 |   def ensure_pin_settings
 36 |     new_settings = check_gp_settings @chip.gp_settings
 37 |     if new_settings
 38 |       @chip.gp_settings = new_settings
 39 |     end
 40 | 
 41 |     4.times do |i|
 42 |       chip.set_gpio_value i, (PIN_VALUE_BITMASK >> i) & 0x1
 43 |     end
 44 |   end
 45 | 
 46 |   ##
 47 |   # Make sure +pin+ is an output pin and the default value is +val+
 48 |   def check_pin gp_settings, pin, val
 49 |     gp_settings.designation_at(pin) == 0 &&
 50 |       gp_settings.direction_at(pin) == 0 &&
 51 |       gp_settings.output_value_at(pin) == val
 52 |   end
 53 | 
 54 |   def set_pin gp_settings, pin, val
 55 |     gp_settings.set_designation_at(pin, 0)  # default to output
 56 |     gp_settings.set_direction_at(pin, 0)    # default to gpio function
 57 |     gp_settings.set_output_value_at(pin, val) # default output to val
 58 |   end
 59 | 
 60 |   # default pin value bitmask.  We want pin 0 and 1 to be HIGH, but 2 and 3
 61 |   # to be LOW
 62 |   PIN_VALUE_BITMASK = 0b0011
 63 | 
 64 |   def check_gp_settings gp_settings
 65 |     pin_bitmask = PIN_VALUE_BITMASK
 66 | 
 67 |     return false if 4.times.all? do |i|
 68 |       val = (pin_bitmask >> i) & 0x1
 69 |       check_pin gp_settings, i, val
 70 |     end
 71 | 
 72 |     4.times do |i|
 73 |       val = (pin_bitmask >> i) & 0x1
 74 |       set_pin gp_settings, i, val
 75 |     end
 76 | 
 77 |     gp_settings
 78 |   end
 79 | 
 80 |   def program!
 81 |     chip.set_gpio_value RST_PIN, 0
 82 |     chip.set_gpio_value FLASH_PIN, 0
 83 |     chip.set_gpio_value RST_PIN, 1
 84 | 
 85 |     sleep 0.5
 86 | 
 87 |     chip.set_gpio_value FLASH_PIN, 1
 88 |   end
 89 | 
 90 |   def esp_pin14
 91 |     chip.gpio_value ESP_PIN14
 92 |   end
 93 | 
 94 |   def esp_pin14= v
 95 |     chip.set_gpio_value ESP_PIN14, v
 96 |   end
 97 | 
 98 |   alias gp2 esp_pin14
 99 |   alias gp2= esp_pin14=
100 | 
101 |   def esp_pin12
102 |     chip.gpio_value ESP_PIN12
103 |   end
104 | 
105 |   def esp_pin12= v
106 |     chip.set_gpio_value ESP_PIN12, v
107 |   end
108 | 
109 |   alias gp3 esp_pin12
110 |   alias gp3= esp_pin12=
111 | end
112 | 


--------------------------------------------------------------------------------
/firmware/utils/i2c-client.rb:
--------------------------------------------------------------------------------
 1 | require "esp_client"
 2 | 
 3 | begin
 4 |   esp = ESPClient.open
 5 |   esp.gp3 = 1
 6 | 
 7 |   #i2c  = esp.i2c_on 0x51
 8 |   #i2c.cancel
 9 |   #i2c.write 0x2.chr
10 |   #p i2c.read 7
11 | 
12 |   i2c  = esp.i2c_on 0x15
13 |   i2c.cancel
14 |   i2c.write [0x04, 0x13, 0x8B, 0x00, 0x01].pack("C*")
15 |   sleep 1
16 |   p i2c.read 4
17 | ensure
18 |   esp.gp2 = 0
19 |   esp.gp3 = 0
20 | end
21 | 


--------------------------------------------------------------------------------
/firmware/utils/mqtt-to-influx.rb:
--------------------------------------------------------------------------------
 1 | # Connects to MQTT, subscribes to the topics published by the esp8266aq sensor,
 2 | # then feeds the data in to InfluxDB (which is the data store for Grafana).
 3 | 
 4 | require "uri"
 5 | require "mqtt"
 6 | require "influxdb"
 7 | 
 8 | HOST = "tender.home"
 9 | 
10 | class InfluxWrapper
11 |   def initialize influx
12 |     @influx = influx
13 |   end
14 | 
15 |   def write_co2 location, value, sensor_type
16 |     data = msg({ :value => value, :unit => "PPM" }, location, sensor_type)
17 |     @influx.write_point("co2_samples", data)
18 |   end
19 | 
20 |   def write_temp location, value, sensor_type
21 |     data = msg({ :value => value, :unit => "C" }, location, sensor_type)
22 |     @influx.write_point("temperatures", data)
23 |   end
24 | 
25 |   def write_humidity location, value, sensor_type
26 |     data = msg({ :value => value, :unit => "%" }, location, sensor_type)
27 |     @influx.write_point("humidity_samples", data)
28 |   end
29 | 
30 |   def write_dewpoint location, value, sensor_type
31 |     data = msg({ :value => value, :unit => "C" }, location, sensor_type)
32 |     @influx.write_point("dewpoint_samples", data)
33 |   end
34 | 
35 |   def write_pm25 location, value, sensor_type
36 |     data   = msg({ "pm2_5_standard" => value }, location, sensor_type)
37 |     @influx.write_point("particle_samples", data)
38 |   end
39 | 
40 |   private
41 | 
42 |   def msg values, location, sensor_type
43 |     { values: values, tags: { location: location, sensor_type: sensor_type } }
44 |   end
45 | 
46 |   def self.connect
47 |     InfluxWrapper.new InfluxDB::Client.new("house", host: HOST)
48 |   end
49 | end
50 | 
51 | influx = InfluxWrapper.connect
52 | 
53 | MQTT::Client.connect HOST do |client|
54 |   client.subscribe "home/+/esp/+"
55 |   client.subscribe "home/+/esp8266aq/+"
56 |   client.subscribe "home/+/+/esp8266aq/+"
57 | 
58 |   loop do
59 |     topic, message = client.get
60 | 
61 |     if topic =~ /^(.*)\/(esp(?:8266aq)?)\/(.*)$/
62 |       location = $1
63 |       sensor_type = $2 == "esp" ? "fridge" : "room"
64 |       measurement = $3
65 |       case measurement
66 |       when "humidity"
67 |         influx.write_humidity location, message.to_f, sensor_type
68 |       when "co2"
69 |         influx.write_co2 location, message.to_i, sensor_type
70 |       when "temperature"
71 |         influx.write_temp location, message.to_f, sensor_type
72 |       when "dewpoint"
73 |         influx.write_dewpoint location, message.to_f, sensor_type
74 |       when "pm2_5_standard"
75 |         influx.write_pm25 location, message.to_i, sensor_type
76 |       end
77 |     end
78 |   end
79 | end
80 | 


--------------------------------------------------------------------------------
/firmware/utils/prog.rb:
--------------------------------------------------------------------------------
 1 | # This program tells the MCP2221 to put the ESP in to programming mode.
 2 | 
 3 | require_relative "esp_client"
 4 | 
 5 | chip = ESPClient.open
 6 | 
 7 | unless chip
 8 |   warn "Couldn't find MCP2221. Is it plugged in?"
 9 |   exit 1
10 | end
11 | 
12 | chip.program!
13 | 


--------------------------------------------------------------------------------
/firmware/utils/serial-client.rb:
--------------------------------------------------------------------------------
 1 | require "uart"
 2 | require "io/wait"
 3 | require "esp_client"
 4 | 
 5 | begin
 6 |   esp = ESPClient.open
 7 |   esp.gp2 = 1
 8 |   esp.gp3 = 0
 9 | 
10 |   trap "INFO" do
11 |     puts "hi"
12 |     esp.gp3 ^= 1
13 |     esp.gp2 ^= 1
14 |   end
15 | 
16 |   UART.open '/dev/cu.usbmodem1441201' do |serial|
17 |     loop do
18 |       serial.wait_readable
19 |       line = serial.readline
20 |       puts line
21 |     end
22 |   end
23 | 
24 | ensure
25 |   puts "turning gp2 off"
26 |   esp.gp2 = 0
27 | end
28 | 


--------------------------------------------------------------------------------
/pcb/README.md:
--------------------------------------------------------------------------------
 1 | # My ESP8266 + Plantower AQ Sensor Project PCB
 2 | 
 3 | This is the PCB for the project.  I've checked in the gerber files in
 4 | `gerbers.zip`, so you can just upload that to a PCB manufacturer and get PCBs
 5 | made.  I like JLCPCB.
 6 | 
 7 | ## Parts List
 8 | 
 9 | Here are the parts I used:
10 | 
11 | * [ESP-12F](https://www.digikey.com/en/products/detail/adafruit-industries-llc/2491/5761206) for WiFi [China](https://www.aliexpress.com/item/32339917567.html)
12 | * [BME280](https://www.aliexpress.com/item/32862844557.html) for temp / humidity over I2C
13 | * [PMS5003](https://www.aliexpress.com/item/32834164058.html) for Air Quality
14 | * [MCP1700](https://www.digikey.com/en/products/detail/microchip-technology/MCP1700-3302E-TO/652680) 3.3v regulator
15 | * 100nf capacitor (4.7mm ceramic disc)
16 | * 47nf capacitor (4.7mm ceramic disc)
17 | * 10uf capacitor (4mm radial)
18 | * 2x 10k resistors (THT, 0207)
19 | * 2x 5.1k resistors (THT, 0207)
20 | * [WM7626CT-ND](https://www.digikey.com/product-detail/en/molex/0532610871/WM7626CT-ND/699113) Molex SMD connector for the AQ sensor [Europe](https://www.reichelt.nl/molex-pin-header-smd-picoblade-1x8-polig-stekker-molex-532610871-p186231.html)
21 | * [USB4085-GF-A](https://www.digikey.com/en/products/detail/gct/USB4085-GF-A/9859733) for 5v power supply and serial communication
22 | * [4 pin header](https://www.digikey.com/product-detail/en/sullins-connector-solutions/PPTC041LFBN-RC/S7002-ND/810144) to plug in the BME280 breakout board [Europe](https://www.reichelt.nl/female-header-2-54mm-straight-1x4-bkl-10120946-p266671.html)
23 | * [MCP2221a](https://www.digikey.com/en/products/detail/microchip-technology/MCP2221A-I-P/6009296) for programming the ESP and serial communication
24 | * [2x JST SH 4 pin Vertical Connector](https://www.adafruit.com/product/4328). These are optional, they're just for future extension to the board
25 | * [IC Socket](https://www.digikey.com/en/products/detail/te-connectivity-amp-connectors/1-2199298-3/5022040) for mounting the MCP2221a
26 | 
27 | ## Assembly
28 | 
29 | Some of these parts are surface mount parts and they can be somewhat tricky to solder.
30 | I recommend using a [flux pen](https://www.amazon.com/gp/product/B074J6R1KQ/) and [fine solder wire](https://www.amazon.com/gp/product/B071G1J3W6/).
31 | 
32 | I recommend soldering in the following order:
33 | 
34 | * Resistors
35 | * ESP
36 | * Ceramic capacitors
37 | * MCP1700 Voltage regulator
38 | * IC Socket for MCP2221a
39 | * 10uf radial capacitor
40 | * Molex socket
41 | * JST headers (if using)
42 | * Header socket for BME breakout board
43 | * USB connector
44 | 
45 | I soldered in that order because I found it easiest to keep the connectors
46 | close to the PCB.
47 | 


--------------------------------------------------------------------------------
/pcb/artwork.pretty/gorby.kicad_mod:
--------------------------------------------------------------------------------
  1 | (module LOGO (layer F.Cu)
  2 |   (at 0 0)
  3 |  (fp_text reference "G***" (at 0 0) (layer F.SilkS) hide
  4 |   (effects (font (thickness 0.3)))
  5 |   )
  6 |   (fp_text value "LOGO" (at 0.75 0) (layer F.SilkS) hide
  7 |   (effects (font (thickness 0.3)))
  8 |   )
  9 |   (fp_poly (pts (xy 10.346231 -11.190175) (xy 10.596281 -11.134606) (xy 10.803711 -11.020462) (xy 10.945642 -10.888716) (xy 11.186473 -10.564912) (xy 11.352761 -10.205288) (xy 11.447843 -9.800360) (xy 11.475295 -9.382382)
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153 |      (xy -6.592000 -0.935365) (xy -6.184325 -0.998193) (xy -5.778405 -1.008590) (xy -5.399986 -0.963524) )(layer F.SilkS) (width  0.010000)
154 |   )
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167 |   )
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173 |   )
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179 |   )
180 |   (fp_poly (pts (xy -5.097020 -0.098456) (xy -5.060651 -0.064886) (xy -5.014274 0.017288) (xy -5.036329 0.093864) (xy -5.110986 0.157590) (xy -5.218239 0.182848) (xy -5.311165 0.160218) (xy -5.321905 0.151190)
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182 |   )
183 |   (fp_poly (pts (xy 4.725708 -0.207051) (xy 4.816727 -0.155728) (xy 4.853214 -0.088400) (xy 4.819277 -0.021377) (xy 4.744031 0.049895) (xy 4.667329 0.089140) (xy 4.657207 0.090020) (xy 4.572537 0.066631)
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185 |   )
186 | )
187 | 


--------------------------------------------------------------------------------
/pcb/fp-lib-table:
--------------------------------------------------------------------------------
1 | (fp_lib_table
2 |   (lib (name pm_25)(type KiCad)(uri ${KIPRJMOD}/pm_25.pretty)(options "")(descr ""))
3 |   (lib (name artwork)(type KiCad)(uri ${KIPRJMOD}/artwork.pretty)(options "")(descr ""))
4 | )
5 | 


--------------------------------------------------------------------------------
/pcb/gerbers-smd.zip:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/tenderlove/esp8266aq/5ca31ca405a7e9a1147211a9ad832bb626f9f6b2/pcb/gerbers-smd.zip


--------------------------------------------------------------------------------
/pcb/gerbers.zip:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/tenderlove/esp8266aq/5ca31ca405a7e9a1147211a9ad832bb626f9f6b2/pcb/gerbers.zip


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/pcb/pcb-smd-cache.lib:
--------------------------------------------------------------------------------
  1 | EESchema-LIBRARY Version 2.4
  2 | #encoding utf-8
  3 | #
  4 | # Connector_Conn_01x06_Female
  5 | #
  6 | DEF Connector_Conn_01x06_Female J 0 40 Y N 1 F N
  7 | F0 "J" 0 300 50 H V C CNN
  8 | F1 "Connector_Conn_01x06_Female" 0 -400 50 H V C CNN
  9 | F2 "" 0 0 50 H I C CNN
 10 | F3 "" 0 0 50 H I C CNN
 11 | $FPLIST
 12 |  Connector*:*_1x??_*
 13 | $ENDFPLIST
 14 | DRAW
 15 | A 0 -300 20 901 -901 1 1 6 N 0 -280 0 -320
 16 | A 0 -200 20 901 -901 1 1 6 N 0 -180 0 -220
 17 | A 0 -100 20 901 -901 1 1 6 N 0 -80 0 -120
 18 | A 0 0 20 901 -901 1 1 6 N 0 20 0 -20
 19 | A 0 100 20 901 -901 1 1 6 N 0 120 0 80
 20 | A 0 200 20 901 -901 1 1 6 N 0 220 0 180
 21 | P 2 1 1 6 -50 -300 -20 -300 N
 22 | P 2 1 1 6 -50 -200 -20 -200 N
 23 | P 2 1 1 6 -50 -100 -20 -100 N
 24 | P 2 1 1 6 -50 0 -20 0 N
 25 | P 2 1 1 6 -50 100 -20 100 N
 26 | P 2 1 1 6 -50 200 -20 200 N
 27 | X Pin_1 1 -200 200 150 R 50 50 1 1 P
 28 | X Pin_2 2 -200 100 150 R 50 50 1 1 P
 29 | X Pin_3 3 -200 0 150 R 50 50 1 1 P
 30 | X Pin_4 4 -200 -100 150 R 50 50 1 1 P
 31 | X Pin_5 5 -200 -200 150 R 50 50 1 1 P
 32 | X Pin_6 6 -200 -300 150 R 50 50 1 1 P
 33 | ENDDRAW
 34 | ENDDEF
 35 | #
 36 | # Connector_Generic_Conn_01x04
 37 | #
 38 | DEF Connector_Generic_Conn_01x04 J 0 40 Y N 1 F N
 39 | F0 "J" 0 200 50 H V C CNN
 40 | F1 "Connector_Generic_Conn_01x04" 0 -300 50 H V C CNN
 41 | F2 "" 0 0 50 H I C CNN
 42 | F3 "" 0 0 50 H I C CNN
 43 | $FPLIST
 44 |  Connector*:*_1x??_*
 45 | $ENDFPLIST
 46 | DRAW
 47 | S -50 -195 0 -205 1 1 6 N
 48 | S -50 -95 0 -105 1 1 6 N
 49 | S -50 5 0 -5 1 1 6 N
 50 | S -50 105 0 95 1 1 6 N
 51 | S -50 150 50 -250 1 1 10 f
 52 | X Pin_1 1 -200 100 150 R 50 50 1 1 P
 53 | X Pin_2 2 -200 0 150 R 50 50 1 1 P
 54 | X Pin_3 3 -200 -100 150 R 50 50 1 1 P
 55 | X Pin_4 4 -200 -200 150 R 50 50 1 1 P
 56 | ENDDRAW
 57 | ENDDEF
 58 | #
 59 | # Connector_USB_C_Receptacle_USB2.0
 60 | #
 61 | DEF Connector_USB_C_Receptacle_USB2.0 J 0 40 Y Y 1 F N
 62 | F0 "J" -400 750 50 H V L CNN
 63 | F1 "Connector_USB_C_Receptacle_USB2.0" 750 750 50 H V R CNN
 64 | F2 "" 150 0 50 H I C CNN
 65 | F3 "" 150 0 50 H I C CNN
 66 | $FPLIST
 67 |  USB*C*Receptacle*
 68 | $ENDFPLIST
 69 | DRAW
 70 | A -275 -150 75 -1799 -1 0 1 20 N -350 -150 -200 -150
 71 | A -275 -150 25 -1799 -1 0 1 10 N -300 -150 -250 -150
 72 | A -275 -150 25 -1799 -1 0 1 10 F -300 -150 -250 -150
 73 | A -275 150 25 1 1799 0 1 10 F -250 150 -300 150
 74 | A -275 150 25 1 1799 0 1 10 N -250 150 -300 150
 75 | A -275 150 75 1 1799 0 1 20 N -200 150 -350 150
 76 | C -100 45 25 0 1 10 F
 77 | C 0 -230 50 0 1 0 F
 78 | S -10 -700 10 -660 0 0 0 N
 79 | S 400 -590 360 -610 0 0 0 N
 80 | S 400 -490 360 -510 0 0 0 N
 81 | S 400 -190 360 -210 0 0 0 N
 82 | S 400 -90 360 -110 0 0 0 N
 83 | S 400 10 360 -10 0 0 0 N
 84 | S 400 110 360 90 0 0 0 N
 85 | S 400 310 360 290 0 0 0 N
 86 | S 400 410 360 390 0 0 0 N
 87 | S 400 610 360 590 0 0 0 N
 88 | S -400 700 400 -700 0 1 10 f
 89 | S -300 -150 -250 150 0 1 10 F
 90 | S 75 70 125 120 0 1 10 F
 91 | P 2 0 1 20 -350 -150 -350 150 N
 92 | P 2 0 1 20 -200 150 -200 -150 N
 93 | P 2 0 1 20 0 -230 0 170 N
 94 | P 3 0 1 20 0 -130 -100 -30 -100 20 N
 95 | P 3 0 1 20 0 -80 100 20 100 70 N
 96 | P 4 0 1 10 -50 170 0 270 50 170 -50 170 F
 97 | X GND A1 0 -900 200 U 50 50 1 1 W
 98 | X GND A12 0 -900 200 U 50 50 1 1 P N
 99 | X VBUS A4 600 600 200 L 50 50 1 1 W
100 | X CC1 A5 600 400 200 L 50 50 1 1 B
101 | X D+ A6 600 -100 200 L 50 50 1 1 B
102 | X D- A7 600 100 200 L 50 50 1 1 B
103 | X SBU1 A8 600 -500 200 L 50 50 1 1 B
104 | X VBUS A9 600 600 200 L 50 50 1 1 P N
105 | X GND B1 0 -900 200 U 50 50 1 1 P N
106 | X GND B12 0 -900 200 U 50 50 1 1 P N
107 | X VBUS B4 600 600 200 L 50 50 1 1 P N
108 | X CC2 B5 600 300 200 L 50 50 1 1 B
109 | X D+ B6 600 -200 200 L 50 50 1 1 B
110 | X D- B7 600 0 200 L 50 50 1 1 B
111 | X SBU2 B8 600 -600 200 L 50 50 1 1 B
112 | X VBUS B9 600 600 200 L 50 50 1 1 P N
113 | X SHIELD S1 -300 -900 200 U 50 50 1 1 P
114 | ENDDRAW
115 | ENDDEF
116 | #
117 | # Device_C
118 | #
119 | DEF Device_C C 0 10 N Y 1 F N
120 | F0 "C" 25 100 50 H V L CNN
121 | F1 "Device_C" 25 -100 50 H V L CNN
122 | F2 "" 38 -150 50 H I C CNN
123 | F3 "" 0 0 50 H I C CNN
124 | $FPLIST
125 |  C_*
126 | $ENDFPLIST
127 | DRAW
128 | P 2 0 1 20 -80 -30 80 -30 N
129 | P 2 0 1 20 -80 30 80 30 N
130 | X ~ 1 0 150 110 D 50 50 1 1 P
131 | X ~ 2 0 -150 110 U 50 50 1 1 P
132 | ENDDRAW
133 | ENDDEF
134 | #
135 | # Device_CP1
136 | #
137 | DEF Device_CP1 C 0 10 N N 1 F N
138 | F0 "C" 25 100 50 H V L CNN
139 | F1 "Device_CP1" 25 -100 50 H V L CNN
140 | F2 "" 0 0 50 H I C CNN
141 | F3 "" 0 0 50 H I C CNN
142 | $FPLIST
143 |  CP_*
144 | $ENDFPLIST
145 | DRAW
146 | A 0 -150 128 1287 513 0 1 20 N -80 -50 80 -50
147 | P 2 0 1 20 -80 30 80 30 N
148 | P 2 0 1 0 -70 90 -30 90 N
149 | P 2 0 1 0 -50 70 -50 110 N
150 | X ~ 1 0 150 110 D 50 50 1 1 P
151 | X ~ 2 0 -150 130 U 50 50 1 1 P
152 | ENDDRAW
153 | ENDDEF
154 | #
155 | # Device_R
156 | #
157 | DEF Device_R R 0 0 N Y 1 F N
158 | F0 "R" 80 0 50 V V C CNN
159 | F1 "Device_R" 0 0 50 V V C CNN
160 | F2 "" -70 0 50 V I C CNN
161 | F3 "" 0 0 50 H I C CNN
162 | $FPLIST
163 |  R_*
164 | $ENDFPLIST
165 | DRAW
166 | S -40 -100 40 100 0 1 10 N
167 | X ~ 1 0 150 50 D 50 50 1 1 P
168 | X ~ 2 0 -150 50 U 50 50 1 1 P
169 | ENDDRAW
170 | ENDDEF
171 | #
172 | # Interface_USB_MCP2221AxST
173 | #
174 | DEF Interface_USB_MCP2221AxST U 0 20 Y Y 1 F N
175 | F0 "U" -300 650 50 H V C CNN
176 | F1 "Interface_USB_MCP2221AxST" 500 650 50 H V C CNN
177 | F2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" 0 1000 50 H I C CNN
178 | F3 "" 0 700 50 H I C CNN
179 | $FPLIST
180 |  TSSOP*4.4x5mm*P0.65mm*
181 | $ENDFPLIST
182 | DRAW
183 | S -300 600 300 -500 0 1 10 f
184 | X VDD 1 0 700 100 D 50 50 1 1 W
185 | X SCL 10 400 400 100 L 50 50 1 1 B
186 | X VUSB 11 100 700 100 D 50 50 1 1 P
187 | X D- 12 -400 0 100 R 50 50 1 1 B
188 | X D+ 13 -400 100 100 R 50 50 1 1 B
189 | X VSS 14 0 -600 100 U 50 50 1 1 W
190 | X GP0 2 400 -100 100 L 50 50 1 1 B
191 | X GP1 3 400 -200 100 L 50 50 1 1 B
192 | X ~RST 4 -400 500 100 R 50 50 1 1 I
193 | X URx 5 400 200 100 L 50 50 1 1 I
194 | X UTx 6 400 100 100 L 50 50 1 1 O
195 | X GP2 7 400 -300 100 L 50 50 1 1 B
196 | X GP3 8 400 -400 100 L 50 50 1 1 B
197 | X SDA 9 400 500 100 L 50 50 1 1 B
198 | ENDDRAW
199 | ENDDEF
200 | #
201 | # Mechanical_MountingHole
202 | #
203 | DEF Mechanical_MountingHole H 0 40 Y Y 1 F N
204 | F0 "H" 0 200 50 H V C CNN
205 | F1 "Mechanical_MountingHole" 0 125 50 H V C CNN
206 | F2 "" 0 0 50 H I C CNN
207 | F3 "" 0 0 50 H I C CNN
208 | $FPLIST
209 |  MountingHole*
210 | $ENDFPLIST
211 | DRAW
212 | C 0 0 50 0 1 50 N
213 | ENDDRAW
214 | ENDDEF
215 | #
216 | # RF_Module_ESP-12F
217 | #
218 | DEF RF_Module_ESP-12F U 0 20 Y Y 1 F N
219 | F0 "U" -500 750 50 H V L CNN
220 | F1 "RF_Module_ESP-12F" 500 750 50 H V R CNN
221 | F2 "RF_Module:ESP-12E" 0 0 50 H I C CNN
222 | F3 "" -350 100 50 H I C CNN
223 | ALIAS ESP-12F
224 | $FPLIST
225 |  ESP?12*
226 | $ENDFPLIST
227 | DRAW
228 | S -500 700 500 -600 0 1 10 f
229 | X ~RST 1 -600 600 100 R 50 50 1 1 I
230 | X MISO 10 -600 -100 100 R 50 50 1 1 B
231 | X GPIO9 11 -600 -200 100 R 50 50 1 1 B
232 | X GPIO10 12 -600 -300 100 R 50 50 1 1 B
233 | X MOSI 13 -600 -400 100 R 50 50 1 1 B
234 | X SCLK 14 -600 -500 100 R 50 50 1 1 B
235 | X GND 15 0 -700 100 U 50 50 1 1 W
236 | X GPIO15 16 600 -300 100 L 50 50 1 1 B
237 | X GPIO2 17 600 400 100 L 50 50 1 1 B
238 | X GPIO0 18 600 600 100 L 50 50 1 1 B
239 | X GPIO4 19 600 200 100 L 50 50 1 1 B
240 | X ADC 2 -600 200 100 R 50 50 1 1 I
241 | X GPIO5 20 600 100 100 L 50 50 1 1 B
242 | X GPIO3/RXD 21 600 300 100 L 50 50 1 1 B
243 | X GPIO1/TXD 22 600 500 100 L 50 50 1 1 B
244 | X EN 3 -600 400 100 R 50 50 1 1 I
245 | X GPIO16 4 600 -400 100 L 50 50 1 1 B
246 | X GPIO14 5 600 -200 100 L 50 50 1 1 B
247 | X GPIO12 6 600 0 100 L 50 50 1 1 B
248 | X GPIO13 7 600 -100 100 L 50 50 1 1 B
249 | X VCC 8 0 800 100 D 50 50 1 1 W
250 | X CS0 9 -600 0 100 R 50 50 1 1 I
251 | ENDDRAW
252 | ENDDEF
253 | #
254 | # Regulator_Linear_MCP1700-3302E_SOT89
255 | #
256 | DEF Regulator_Linear_MCP1700-3302E_SOT89 U 0 10 Y Y 1 F N
257 | F0 "U" -150 125 50 H V C CNN
258 | F1 "Regulator_Linear_MCP1700-3302E_SOT89" 0 125 50 H V L CNN
259 | F2 "Package_TO_SOT_SMD:SOT-89-3" 0 200 50 H I C CNN
260 | F3 "" 0 -50 50 H I C CNN
261 | ALIAS MCP1703A-1202_SOT89 MCP1703A-1502_SOT89 MCP1703A-1802_SOT89 MCP1703A-2502_SOT89 MCP1703A-2802_SOT89 MCP1703A-3002_SOT89 MCP1703A-4002_SOT89 MCP1703A-5002_SOT89 MCP1700-3002E_SOT89 MCP1700-1202E_SOT89 MCP1700-1802E_SOT89 MCP1700-2502E_SOT89 MCP1700-2802E_SOT89 MCP1700-3302E_SOT89 MCP1700-5002E_SOT89 AP2127R-3.3
262 | $FPLIST
263 |  SOT?89*
264 | $ENDFPLIST
265 | DRAW
266 | S -200 -200 200 75 0 1 10 f
267 | X GND 1 0 -300 100 U 50 50 1 1 W
268 | X VI 2 -300 0 100 R 50 50 1 1 W
269 | X VO 3 300 0 100 L 50 50 1 1 w
270 | ENDDRAW
271 | ENDDEF
272 | #
273 | # pm_25_Plantower-PM2.5
274 | #
275 | DEF pm_25_Plantower-PM2.5 U 0 40 Y Y 1 F N
276 | F0 "U" -200 350 50 H V C CNN
277 | F1 "pm_25_Plantower-PM2.5" 400 -400 50 H V C CNN
278 | F2 "" 0 0 50 H I C CNN
279 | F3 "" 0 0 50 H I C CNN
280 | DRAW
281 | S -250 300 200 -250 0 1 0 N
282 | X NC 1 -350 -200 100 R 50 50 1 1 N
283 | X NC 2 -350 -100 100 R 50 50 1 1 N
284 | X RST 3 -350 100 100 R 50 50 1 1 I
285 | X TX 4 300 -150 100 L 50 50 1 1 I
286 | X RX 5 300 150 100 L 50 50 1 1 I
287 | X SET 6 -350 200 100 R 50 50 1 1 I
288 | X GND 7 0 -350 100 U 50 50 1 1 I
289 | X VCC 8 0 400 100 D 50 50 1 1 I
290 | ENDDRAW
291 | ENDDEF
292 | #
293 | # power_+3.3V
294 | #
295 | DEF power_+3.3V #PWR 0 0 Y Y 1 F P
296 | F0 "#PWR" 0 -150 50 H I C CNN
297 | F1 "power_+3.3V" 0 140 50 H V C CNN
298 | F2 "" 0 0 50 H I C CNN
299 | F3 "" 0 0 50 H I C CNN
300 | ALIAS +3.3V
301 | DRAW
302 | P 2 0 1 0 -30 50 0 100 N
303 | P 2 0 1 0 0 0 0 100 N
304 | P 2 0 1 0 0 100 30 50 N
305 | X +3V3 1 0 0 0 U 50 50 1 1 W N
306 | ENDDRAW
307 | ENDDEF
308 | #
309 | # power_+5V
310 | #
311 | DEF power_+5V #PWR 0 0 Y Y 1 F P
312 | F0 "#PWR" 0 -150 50 H I C CNN
313 | F1 "power_+5V" 0 140 50 H V C CNN
314 | F2 "" 0 0 50 H I C CNN
315 | F3 "" 0 0 50 H I C CNN
316 | DRAW
317 | P 2 0 1 0 -30 50 0 100 N
318 | P 2 0 1 0 0 0 0 100 N
319 | P 2 0 1 0 0 100 30 50 N
320 | X +5V 1 0 0 0 U 50 50 1 1 W N
321 | ENDDRAW
322 | ENDDEF
323 | #
324 | # power_GND
325 | #
326 | DEF power_GND #PWR 0 0 Y Y 1 F P
327 | F0 "#PWR" 0 -250 50 H I C CNN
328 | F1 "power_GND" 0 -150 50 H V C CNN
329 | F2 "" 0 0 50 H I C CNN
330 | F3 "" 0 0 50 H I C CNN
331 | DRAW
332 | P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
333 | X GND 1 0 0 0 D 50 50 1 1 W N
334 | ENDDRAW
335 | ENDDEF
336 | #
337 | #End Library
338 | 


--------------------------------------------------------------------------------
/pcb/pcb-smd.pro:
--------------------------------------------------------------------------------
  1 | update=Saturday, March 13, 2021 at 04:55:34 PM
  2 | version=1
  3 | last_client=pcbnew
  4 | [general]
  5 | version=1
  6 | RootSch=
  7 | BoardNm=
  8 | [cvpcb]
  9 | version=1
 10 | NetIExt=net
 11 | [eeschema]
 12 | version=1
 13 | LibDir=
 14 | [eeschema/libraries]
 15 | [schematic_editor]
 16 | version=1
 17 | PageLayoutDescrFile=
 18 | PlotDirectoryName=
 19 | SubpartIdSeparator=0
 20 | SubpartFirstId=65
 21 | NetFmtName=Pcbnew
 22 | SpiceAjustPassiveValues=0
 23 | LabSize=50
 24 | ERC_TestSimilarLabels=1
 25 | [pcbnew]
 26 | version=1
 27 | PageLayoutDescrFile=
 28 | LastNetListRead=pcb-smd.net
 29 | CopperLayerCount=2
 30 | BoardThickness=1.6
 31 | AllowMicroVias=0
 32 | AllowBlindVias=0
 33 | RequireCourtyardDefinitions=0
 34 | ProhibitOverlappingCourtyards=1
 35 | MinTrackWidth=0.2
 36 | MinViaDiameter=0.4
 37 | MinViaDrill=0.3
 38 | MinMicroViaDiameter=0.2
 39 | MinMicroViaDrill=0.09999999999999999
 40 | MinHoleToHole=0.25
 41 | TrackWidth1=0.25
 42 | TrackWidth2=0.762
 43 | ViaDiameter1=0.8
 44 | ViaDrill1=0.4
 45 | dPairWidth1=0.2
 46 | dPairGap1=0.25
 47 | dPairViaGap1=0.25
 48 | SilkLineWidth=0.12
 49 | SilkTextSizeV=1
 50 | SilkTextSizeH=1
 51 | SilkTextSizeThickness=0.15
 52 | SilkTextItalic=0
 53 | SilkTextUpright=1
 54 | CopperLineWidth=0.2
 55 | CopperTextSizeV=1.5
 56 | CopperTextSizeH=1.5
 57 | CopperTextThickness=0.3
 58 | CopperTextItalic=0
 59 | CopperTextUpright=1
 60 | EdgeCutLineWidth=0.05
 61 | CourtyardLineWidth=0.05
 62 | OthersLineWidth=0.15
 63 | OthersTextSizeV=1
 64 | OthersTextSizeH=1
 65 | OthersTextSizeThickness=0.15
 66 | OthersTextItalic=0
 67 | OthersTextUpright=1
 68 | SolderMaskClearance=0.051
 69 | SolderMaskMinWidth=0.25
 70 | SolderPasteClearance=0
 71 | SolderPasteRatio=0
 72 | [pcbnew/Layer.F.Cu]
 73 | Name=F.Cu
 74 | Type=0
 75 | Enabled=1
 76 | [pcbnew/Layer.In1.Cu]
 77 | Name=In1.Cu
 78 | Type=0
 79 | Enabled=0
 80 | [pcbnew/Layer.In2.Cu]
 81 | Name=In2.Cu
 82 | Type=0
 83 | Enabled=0
 84 | [pcbnew/Layer.In3.Cu]
 85 | Name=In3.Cu
 86 | Type=0
 87 | Enabled=0
 88 | [pcbnew/Layer.In4.Cu]
 89 | Name=In4.Cu
 90 | Type=0
 91 | Enabled=0
 92 | [pcbnew/Layer.In5.Cu]
 93 | Name=In5.Cu
 94 | Type=0
 95 | Enabled=0
 96 | [pcbnew/Layer.In6.Cu]
 97 | Name=In6.Cu
 98 | Type=0
 99 | Enabled=0
100 | [pcbnew/Layer.In7.Cu]
101 | Name=In7.Cu
102 | Type=0
103 | Enabled=0
104 | [pcbnew/Layer.In8.Cu]
105 | Name=In8.Cu
106 | Type=0
107 | Enabled=0
108 | [pcbnew/Layer.In9.Cu]
109 | Name=In9.Cu
110 | Type=0
111 | Enabled=0
112 | [pcbnew/Layer.In10.Cu]
113 | Name=In10.Cu
114 | Type=0
115 | Enabled=0
116 | [pcbnew/Layer.In11.Cu]
117 | Name=In11.Cu
118 | Type=0
119 | Enabled=0
120 | [pcbnew/Layer.In12.Cu]
121 | Name=In12.Cu
122 | Type=0
123 | Enabled=0
124 | [pcbnew/Layer.In13.Cu]
125 | Name=In13.Cu
126 | Type=0
127 | Enabled=0
128 | [pcbnew/Layer.In14.Cu]
129 | Name=In14.Cu
130 | Type=0
131 | Enabled=0
132 | [pcbnew/Layer.In15.Cu]
133 | Name=In15.Cu
134 | Type=0
135 | Enabled=0
136 | [pcbnew/Layer.In16.Cu]
137 | Name=In16.Cu
138 | Type=0
139 | Enabled=0
140 | [pcbnew/Layer.In17.Cu]
141 | Name=In17.Cu
142 | Type=0
143 | Enabled=0
144 | [pcbnew/Layer.In18.Cu]
145 | Name=In18.Cu
146 | Type=0
147 | Enabled=0
148 | [pcbnew/Layer.In19.Cu]
149 | Name=In19.Cu
150 | Type=0
151 | Enabled=0
152 | [pcbnew/Layer.In20.Cu]
153 | Name=In20.Cu
154 | Type=0
155 | Enabled=0
156 | [pcbnew/Layer.In21.Cu]
157 | Name=In21.Cu
158 | Type=0
159 | Enabled=0
160 | [pcbnew/Layer.In22.Cu]
161 | Name=In22.Cu
162 | Type=0
163 | Enabled=0
164 | [pcbnew/Layer.In23.Cu]
165 | Name=In23.Cu
166 | Type=0
167 | Enabled=0
168 | [pcbnew/Layer.In24.Cu]
169 | Name=In24.Cu
170 | Type=0
171 | Enabled=0
172 | [pcbnew/Layer.In25.Cu]
173 | Name=In25.Cu
174 | Type=0
175 | Enabled=0
176 | [pcbnew/Layer.In26.Cu]
177 | Name=In26.Cu
178 | Type=0
179 | Enabled=0
180 | [pcbnew/Layer.In27.Cu]
181 | Name=In27.Cu
182 | Type=0
183 | Enabled=0
184 | [pcbnew/Layer.In28.Cu]
185 | Name=In28.Cu
186 | Type=0
187 | Enabled=0
188 | [pcbnew/Layer.In29.Cu]
189 | Name=In29.Cu
190 | Type=0
191 | Enabled=0
192 | [pcbnew/Layer.In30.Cu]
193 | Name=In30.Cu
194 | Type=0
195 | Enabled=0
196 | [pcbnew/Layer.B.Cu]
197 | Name=B.Cu
198 | Type=0
199 | Enabled=1
200 | [pcbnew/Layer.B.Adhes]
201 | Enabled=1
202 | [pcbnew/Layer.F.Adhes]
203 | Enabled=1
204 | [pcbnew/Layer.B.Paste]
205 | Enabled=1
206 | [pcbnew/Layer.F.Paste]
207 | Enabled=1
208 | [pcbnew/Layer.B.SilkS]
209 | Enabled=1
210 | [pcbnew/Layer.F.SilkS]
211 | Enabled=1
212 | [pcbnew/Layer.B.Mask]
213 | Enabled=1
214 | [pcbnew/Layer.F.Mask]
215 | Enabled=1
216 | [pcbnew/Layer.Dwgs.User]
217 | Enabled=1
218 | [pcbnew/Layer.Cmts.User]
219 | Enabled=1
220 | [pcbnew/Layer.Eco1.User]
221 | Enabled=1
222 | [pcbnew/Layer.Eco2.User]
223 | Enabled=1
224 | [pcbnew/Layer.Edge.Cuts]
225 | Enabled=1
226 | [pcbnew/Layer.Margin]
227 | Enabled=1
228 | [pcbnew/Layer.B.CrtYd]
229 | Enabled=1
230 | [pcbnew/Layer.F.CrtYd]
231 | Enabled=1
232 | [pcbnew/Layer.B.Fab]
233 | Enabled=1
234 | [pcbnew/Layer.F.Fab]
235 | Enabled=1
236 | [pcbnew/Layer.Rescue]
237 | Enabled=0
238 | [pcbnew/Netclasses]
239 | [pcbnew/Netclasses/Default]
240 | Name=Default
241 | Clearance=0.2
242 | TrackWidth=0.25
243 | ViaDiameter=0.8
244 | ViaDrill=0.4
245 | uViaDiameter=0.3
246 | uViaDrill=0.1
247 | dPairWidth=0.2
248 | dPairGap=0.25
249 | dPairViaGap=0.25
250 | 


--------------------------------------------------------------------------------
/pcb/pcb-smd.sch:
--------------------------------------------------------------------------------
  1 | EESchema Schematic File Version 4
  2 | EELAYER 30 0
  3 | EELAYER END
  4 | $Descr A4 11693 8268
  5 | encoding utf-8
  6 | Sheet 1 1
  7 | Title "PM-2.5 / Temp Wifi Sensor"
  8 | Date "2021-03-13"
  9 | Rev "v04"
 10 | Comp ""
 11 | Comment1 "SMD Version"
 12 | Comment2 "creativecommons.org/licenses/by/4.0"
 13 | Comment3 "License: CC BY 4.0"
 14 | Comment4 "Author: Aaron Patterson"
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 37 | $EndComp
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 67 | F 3 "" H 7250 2050 50  0001 C CNN
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102 | 	7100 5450 10150 5450
103 | Wire Wire Line
104 | 	10150 5450 10150 4000
105 | Wire Wire Line
106 | 	10150 4000 9850 4000
107 | Wire Wire Line
108 | 	6250 4000 6900 4000
109 | Wire Wire Line
110 | 	6900 4000 6900 5850
111 | Wire Wire Line
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126 | F 1 "+3.3V" H 8965 3573 50  0000 C CNN
127 | F 2 "" H 8950 3400 50  0001 C CNN
128 | F 3 "" H 8950 3400 50  0001 C CNN
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137 | F 1 "GND" H 8955 4727 50  0000 C CNN
138 | F 2 "" H 8950 4900 50  0001 C CNN
139 | F 3 "" H 8950 4900 50  0001 C CNN
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152 | F 1 "+5V" H 5865 3423 50  0000 C CNN
153 | F 2 "" H 5850 3250 50  0001 C CNN
154 | F 3 "" H 5850 3250 50  0001 C CNN
155 | 	1    5850 3250
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162 | U 1 1 60059B68
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165 | F 1 "10k" H 5320 3505 50  0000 L CNN
166 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 5180 3550 50  0001 C CNN
167 | F 3 "~" H 5250 3550 50  0001 C CNN
168 | 	1    5250 3550
169 | 	1    0    0    -1  
170 | $EndComp
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173 | Wire Wire Line
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175 | Connection ~ 5850 3400
176 | Wire Wire Line
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180 | U 1 1 6005BC47
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183 | F 1 "47nf" V 5939 3400 50  0000 C CNN
184 | F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 6138 3250 50  0001 C CNN
185 | F 3 "~" H 6100 3400 50  0001 C CNN
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188 | $EndComp
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196 | F 1 "GND" H 6455 3227 50  0000 C CNN
197 | F 2 "" H 6450 3400 50  0001 C CNN
198 | F 3 "" H 6450 3400 50  0001 C CNN
199 | 	1    6450 3400
200 | 	1    0    0    -1  
201 | $EndComp
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203 | 	6250 3400 6450 3400
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209 | F 1 "GND" H 5855 4927 50  0000 C CNN
210 | F 2 "" H 5850 5100 50  0001 C CNN
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219 | Wire Wire Line
220 | 	10450 2600 7550 2600
221 | $Comp
222 | L power:+5V #PWR0106
223 | U 1 1 60079FF8
224 | P 3900 2550
225 | F 0 "#PWR0106" H 3900 2400 50  0001 C CNN
226 | F 1 "+5V" H 3915 2723 50  0000 C CNN
227 | F 2 "" H 3900 2550 50  0001 C CNN
228 | F 3 "" H 3900 2550 50  0001 C CNN
229 | 	1    3900 2550
230 | 	1    0    0    -1  
231 | $EndComp
232 | $Comp
233 | L power:+3.3V #PWR0107
234 | U 1 1 6007A610
235 | P 4500 2550
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237 | F 1 "+3.3V" H 4515 2723 50  0000 C CNN
238 | F 2 "" H 4500 2550 50  0001 C CNN
239 | F 3 "" H 4500 2550 50  0001 C CNN
240 | 	1    4500 2550
241 | 	1    0    0    -1  
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244 | 	4500 2900 4500 2550
245 | Wire Wire Line
246 | 	3900 2900 3900 2550
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249 | U 1 1 6007DBDF
250 | P 4200 3350
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252 | F 1 "GND" H 4205 3177 50  0000 C CNN
253 | F 2 "" H 4200 3350 50  0001 C CNN
254 | F 3 "" H 4200 3350 50  0001 C CNN
255 | 	1    4200 3350
256 | 	1    0    0    -1  
257 | $EndComp
258 | Wire Wire Line
259 | 	4200 3200 4200 3350
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263 | P 3950 4900
264 | F 0 "#PWR0109" H 3950 4750 50  0001 C CNN
265 | F 1 "+3.3V" H 3965 5073 50  0000 C CNN
266 | F 2 "" H 3950 4900 50  0001 C CNN
267 | F 3 "" H 3950 4900 50  0001 C CNN
268 | 	1    3950 4900
269 | 	1    0    0    -1  
270 | $EndComp
271 | $Comp
272 | L power:+3.3V #PWR0110
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275 | F 0 "#PWR0110" H 3350 4750 50  0001 C CNN
276 | F 1 "+3.3V" H 3365 5073 50  0000 C CNN
277 | F 2 "" H 3350 4900 50  0001 C CNN
278 | F 3 "" H 3350 4900 50  0001 C CNN
279 | 	1    3350 4900
280 | 	1    0    0    -1  
281 | $EndComp
282 | $Comp
283 | L power:GND #PWR0111
284 | U 1 1 600856A1
285 | P 3950 5200
286 | F 0 "#PWR0111" H 3950 4950 50  0001 C CNN
287 | F 1 "GND" H 3955 5027 50  0000 C CNN
288 | F 2 "" H 3950 5200 50  0001 C CNN
289 | F 3 "" H 3950 5200 50  0001 C CNN
290 | 	1    3950 5200
291 | 	1    0    0    -1  
292 | $EndComp
293 | $Comp
294 | L power:GND #PWR0112
295 | U 1 1 60085D70
296 | P 3350 5200
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298 | F 1 "GND" H 3355 5027 50  0000 C CNN
299 | F 2 "" H 3350 5200 50  0001 C CNN
300 | F 3 "" H 3350 5200 50  0001 C CNN
301 | 	1    3350 5200
302 | 	1    0    0    -1  
303 | $EndComp
304 | $Comp
305 | L power:GND #PWR0113
306 | U 1 1 6008C9C3
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309 | F 1 "GND" H 5055 6127 50  0000 C CNN
310 | F 2 "" H 5050 6300 50  0001 C CNN
311 | F 3 "" H 5050 6300 50  0001 C CNN
312 | 	1    5050 6300
313 | 	1    0    0    -1  
314 | $EndComp
315 | $Comp
316 | L power:+3.3V #PWR0114
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318 | P 5300 6300
319 | F 0 "#PWR0114" H 5300 6150 50  0001 C CNN
320 | F 1 "+3.3V" H 5315 6473 50  0000 C CNN
321 | F 2 "" H 5300 6300 50  0001 C CNN
322 | F 3 "" H 5300 6300 50  0001 C CNN
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339 | F 1 "header" V 3573 5862 50  0000 R CNN
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341 | F 3 "~" H 3700 6150 50  0001 C CNN
342 | 	1    3700 6150
343 | 	0    -1   -1   0   
344 | $EndComp
345 | $Comp
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351 | F 2 "" H 4050 6450 50  0001 C CNN
352 | F 3 "" H 4050 6450 50  0001 C CNN
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354 | 	-1   0    0    1   
355 | $EndComp
356 | $Comp
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358 | U 1 1 60098F93
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362 | F 2 "" H 3800 6350 50  0001 C CNN
363 | F 3 "" H 3800 6350 50  0001 C CNN
364 | 	1    3800 6350
365 | 	1    0    0    -1  
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376 | NoConn ~ 6900 2650
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380 | NoConn ~ 8350 4500
381 | NoConn ~ 8350 4600
382 | NoConn ~ 8350 4700
383 | NoConn ~ 9550 4600
384 | NoConn ~ 9550 3800
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386 | L Connector:USB_C_Receptacle_USB2.0 J1
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392 | F 3 "https://www.usb.org/sites/default/files/documents/usb_type-c.zip" H 2900 2850 50  0001 C CNN
393 | 	1    2750 2850
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401 | F 1 "GND" H 2755 3577 50  0000 C CNN
402 | F 2 "" H 2750 3750 50  0001 C CNN
403 | F 3 "" H 2750 3750 50  0001 C CNN
404 | 	1    2750 3750
405 | 	1    0    0    -1  
406 | $EndComp
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413 | D+
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425 | F 3 "" H 3350 2250 50  0001 C CNN
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427 | 	1    0    0    -1  
428 | $EndComp
429 | NoConn ~ 3350 3350
430 | NoConn ~ 3350 3450
431 | $Comp
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433 | U 1 1 600B95C9
434 | P 3850 950
435 | F 0 "H1" H 3950 996 50  0000 L CNN
436 | F 1 "MountingHole" H 3950 905 50  0000 L CNN
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438 | F 3 "~" H 3850 950 50  0001 C CNN
439 | 	1    3850 950 
440 | 	1    0    0    -1  
441 | $EndComp
442 | $Comp
443 | L Mechanical:MountingHole H2
444 | U 1 1 600B9C28
445 | P 4700 950
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447 | F 1 "MountingHole" H 4800 905 50  0000 L CNN
448 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 4700 950 50  0001 C CNN
449 | F 3 "~" H 4700 950 50  0001 C CNN
450 | 	1    4700 950 
451 | 	1    0    0    -1  
452 | $EndComp
453 | $Comp
454 | L Mechanical:MountingHole H3
455 | U 1 1 600BA0A1
456 | P 5450 950
457 | F 0 "H3" H 5550 996 50  0000 L CNN
458 | F 1 "MountingHole" H 5550 905 50  0000 L CNN
459 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 5450 950 50  0001 C CNN
460 | F 3 "~" H 5450 950 50  0001 C CNN
461 | 	1    5450 950 
462 | 	1    0    0    -1  
463 | $EndComp
464 | $Comp
465 | L Mechanical:MountingHole H4
466 | U 1 1 600BA5D5
467 | P 6300 950
468 | F 0 "H4" H 6400 996 50  0000 L CNN
469 | F 1 "MountingHole" H 6400 905 50  0000 L CNN
470 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 6300 950 50  0001 C CNN
471 | F 3 "~" H 6300 950 50  0001 C CNN
472 | 	1    6300 950 
473 | 	1    0    0    -1  
474 | $EndComp
475 | $Comp
476 | L Device:R R2
477 | U 1 1 600BB1DB
478 | P 10450 4850
479 | F 0 "R2" H 10520 4896 50  0000 L CNN
480 | F 1 "10k" H 10520 4805 50  0000 L CNN
481 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 10380 4850 50  0001 C CNN
482 | F 3 "~" H 10450 4850 50  0001 C CNN
483 | 	1    10450 4850
484 | 	1    0    0    -1  
485 | $EndComp
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488 | Connection ~ 10450 4500
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495 | F 2 "" H 10450 5000 50  0001 C CNN
496 | F 3 "" H 10450 5000 50  0001 C CNN
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509 | F 2 "" H 5100 6950 50  0001 C CNN
510 | F 3 "" H 5100 6950 50  0001 C CNN
511 | 	1    5100 6950
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518 | Wire Wire Line
519 | 	5250 6950 5100 6950
520 | $Comp
521 | L Connector_Generic:Conn_01x04 J3
522 | U 1 1 600889C9
523 | P 5300 6100
524 | F 0 "J3" V 5264 5812 50  0000 R CNN
525 | F 1 "I2C 3.3v" V 5173 5812 50  0000 R CNN
526 | F 2 "Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical" H 5300 6100 50  0001 C CNN
527 | F 3 "~" H 5300 6100 50  0001 C CNN
528 | 	1    5300 6100
529 | 	0    -1   -1   0   
530 | $EndComp
531 | $Comp
532 | L Connector_Generic:Conn_01x04 J4
533 | U 1 1 600F9C93
534 | P 5350 6750
535 | F 0 "J4" V 5314 6462 50  0000 R CNN
536 | F 1 "I2C 5v" V 5223 6462 50  0000 R CNN
537 | F 2 "Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical" H 5350 6750 50  0001 C CNN
538 | F 3 "~" H 5350 6750 50  0001 C CNN
539 | 	1    5350 6750
540 | 	0    -1   -1   0   
541 | $EndComp
542 | $Comp
543 | L power:+5V #PWR0121
544 | U 1 1 602F3278
545 | P 5350 6950
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548 | F 2 "" H 5350 6950 50  0001 C CNN
549 | F 3 "" H 5350 6950 50  0001 C CNN
550 | 	1    5350 6950
551 | 	-1   0    0    1   
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555 | Wire Wire Line
556 | 	10000 3700 10000 5850
557 | Wire Wire Line
558 | 	9850 4000 9850 3900
559 | Wire Wire Line
560 | 	9850 3900 9550 3900
561 | Wire Wire Line
562 | 	9550 4200 9750 4200
563 | Wire Wire Line
564 | 	9750 4200 9750 5250
565 | Wire Wire Line
566 | 	9750 5250 6500 5250
567 | Wire Wire Line
568 | 	6500 5250 6500 4600
569 | Wire Wire Line
570 | 	6500 4600 6250 4600
571 | Wire Wire Line
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573 | Wire Wire Line
574 | 	10250 4300 10250 2900
575 | Wire Wire Line
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577 | Wire Wire Line
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579 | Wire Wire Line
580 | 	9700 4400 9700 5000
581 | Wire Wire Line
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583 | Wire Wire Line
584 | 	6650 5000 6650 4500
585 | Wire Wire Line
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587 | Wire Wire Line
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591 | Wire Wire Line
592 | 	7850 3800 7850 3400
593 | Wire Wire Line
594 | 	7850 3400 8950 3400
595 | Connection ~ 8950 3400
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597 | L Device:R R3
598 | U 1 1 60483EC3
599 | P 2050 5000
600 | F 0 "R3" H 2120 5046 50  0000 L CNN
601 | F 1 "5.1k" H 2120 4955 50  0000 L CNN
602 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1980 5000 50  0001 C CNN
603 | F 3 "~" H 2050 5000 50  0001 C CNN
604 | 	1    2050 5000
605 | 	1    0    0    -1  
606 | $EndComp
607 | $Comp
608 | L Device:R R4
609 | U 1 1 60484D3B
610 | P 2450 5000
611 | F 0 "R4" H 2520 5046 50  0000 L CNN
612 | F 1 "5.1k" H 2520 4955 50  0000 L CNN
613 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 2380 5000 50  0001 C CNN
614 | F 3 "~" H 2450 5000 50  0001 C CNN
615 | 	1    2450 5000
616 | 	1    0    0    -1  
617 | $EndComp
618 | $Comp
619 | L power:GND #PWR0122
620 | U 1 1 604854A3
621 | P 2450 5150
622 | F 0 "#PWR0122" H 2450 4900 50  0001 C CNN
623 | F 1 "GND" H 2455 4977 50  0000 C CNN
624 | F 2 "" H 2450 5150 50  0001 C CNN
625 | F 3 "" H 2450 5150 50  0001 C CNN
626 | 	1    2450 5150
627 | 	1    0    0    -1  
628 | $EndComp
629 | $Comp
630 | L power:GND #PWR0123
631 | U 1 1 604859C1
632 | P 2050 5150
633 | F 0 "#PWR0123" H 2050 4900 50  0001 C CNN
634 | F 1 "GND" H 2055 4977 50  0000 C CNN
635 | F 2 "" H 2050 5150 50  0001 C CNN
636 | F 3 "" H 2050 5150 50  0001 C CNN
637 | 	1    2050 5150
638 | 	1    0    0    -1  
639 | $EndComp
640 | Text Label 3350 2450 0    50   ~ 0
641 | CC1
642 | Text Label 3350 2550 0    50   ~ 0
643 | CC2
644 | Text Label 2050 4850 0    50   ~ 0
645 | CC1
646 | Text Label 2450 4850 0    50   ~ 0
647 | CC2
648 | $Comp
649 | L Device:R R5
650 | U 1 1 604D7974
651 | P 2050 6150
652 | F 0 "R5" H 2120 6196 50  0000 L CNN
653 | F 1 "1.8k" H 2120 6105 50  0000 L CNN
654 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 1980 6150 50  0001 C CNN
655 | F 3 "~" H 2050 6150 50  0001 C CNN
656 | 	1    2050 6150
657 | 	1    0    0    -1  
658 | $EndComp
659 | $Comp
660 | L power:+5V #PWR0124
661 | U 1 1 604D83CF
662 | P 2050 6000
663 | F 0 "#PWR0124" H 2050 5850 50  0001 C CNN
664 | F 1 "+5V" H 2065 6173 50  0000 C CNN
665 | F 2 "" H 2050 6000 50  0001 C CNN
666 | F 3 "" H 2050 6000 50  0001 C CNN
667 | 	1    2050 6000
668 | 	1    0    0    -1  
669 | $EndComp
670 | $Comp
671 | L Device:R R6
672 | U 1 1 604D8EAE
673 | P 2600 6150
674 | F 0 "R6" H 2670 6196 50  0000 L CNN
675 | F 1 "1.8k" H 2670 6105 50  0000 L CNN
676 | F 2 "Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder" V 2530 6150 50  0001 C CNN
677 | F 3 "~" H 2600 6150 50  0001 C CNN
678 | 	1    2600 6150
679 | 	1    0    0    -1  
680 | $EndComp
681 | $Comp
682 | L power:+5V #PWR0125
683 | U 1 1 604D9337
684 | P 2600 6000
685 | F 0 "#PWR0125" H 2600 5850 50  0001 C CNN
686 | F 1 "+5V" H 2615 6173 50  0000 C CNN
687 | F 2 "" H 2600 6000 50  0001 C CNN
688 | F 3 "" H 2600 6000 50  0001 C CNN
689 | 	1    2600 6000
690 | 	1    0    0    -1  
691 | $EndComp
692 | Text Label 2050 6300 3    50   ~ 0
693 | SDA
694 | Text Label 2600 6300 3    50   ~ 0
695 | SCL
696 | Text Notes 2050 6650 0    50   ~ 0
697 | Pullup For T6703
698 | $Comp
699 | L Connector:Conn_01x06_Female J5
700 | U 1 1 604DAFD3
701 | P 2300 6900
702 | F 0 "J5" V 2238 6512 50  0000 R CNN
703 | F 1 "T6703" V 2147 6512 50  0000 R CNN
704 | F 2 "Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical" H 2300 6900 50  0001 C CNN
705 | F 3 "~" H 2300 6900 50  0001 C CNN
706 | 	1    2300 6900
707 | 	0    -1   -1   0   
708 | $EndComp
709 | Text Label 2100 7100 3    50   ~ 0
710 | SDA
711 | Text Label 2200 7100 3    50   ~ 0
712 | SCL
713 | $Comp
714 | L power:+5V #PWR0126
715 | U 1 1 604DDDA2
716 | P 2300 7100
717 | F 0 "#PWR0126" H 2300 6950 50  0001 C CNN
718 | F 1 "+5V" H 2315 7273 50  0000 C CNN
719 | F 2 "" H 2300 7100 50  0001 C CNN
720 | F 3 "" H 2300 7100 50  0001 C CNN
721 | 	1    2300 7100
722 | 	-1   0    0    1   
723 | $EndComp
724 | $Comp
725 | L power:GND #PWR0127
726 | U 1 1 604DEA73
727 | P 2400 7350
728 | F 0 "#PWR0127" H 2400 7100 50  0001 C CNN
729 | F 1 "GND" H 2405 7177 50  0000 C CNN
730 | F 2 "" H 2400 7350 50  0001 C CNN
731 | F 3 "" H 2400 7350 50  0001 C CNN
732 | 	1    2400 7350
733 | 	1    0    0    -1  
734 | $EndComp
735 | Wire Wire Line
736 | 	2400 7100 2400 7200
737 | NoConn ~ 2500 7100
738 | Wire Wire Line
739 | 	2600 7100 2600 7200
740 | Wire Wire Line
741 | 	2600 7200 2400 7200
742 | Connection ~ 2400 7200
743 | Wire Wire Line
744 | 	2400 7200 2400 7350
745 | $Comp
746 | L Regulator_Linear:MCP1700-3302E_SOT89 U1
747 | U 1 1 604E7D6B
748 | P 4200 2900
749 | F 0 "U1" H 4200 3142 50  0000 C CNN
750 | F 1 "MCP1700-3302E_SOT89" H 4200 3051 50  0000 C CNN
751 | F 2 "Package_TO_SOT_SMD:SOT-89-3" H 4200 3100 50  0001 C CNN
752 | F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/20001826D.pdf" H 4200 2850 50  0001 C CNN
753 | 	1    4200 2900
754 | 	1    0    0    -1  
755 | $EndComp
756 | Text Label 6250 3700 0    50   ~ 0
757 | SDA
758 | Text Label 6250 3800 0    50   ~ 0
759 | SCL
760 | $EndSCHEMATC
761 | 


--------------------------------------------------------------------------------
/pcb/pm_25-cache.lib:
--------------------------------------------------------------------------------
  1 | EESchema-LIBRARY Version 2.4
  2 | #encoding utf-8
  3 | #
  4 | # Connector_Generic_Conn_01x04
  5 | #
  6 | DEF Connector_Generic_Conn_01x04 J 0 40 Y N 1 F N
  7 | F0 "J" 0 200 50 H V C CNN
  8 | F1 "Connector_Generic_Conn_01x04" 0 -300 50 H V C CNN
  9 | F2 "" 0 0 50 H I C CNN
 10 | F3 "" 0 0 50 H I C CNN
 11 | $FPLIST
 12 |  Connector*:*_1x??_*
 13 | $ENDFPLIST
 14 | DRAW
 15 | S -50 -195 0 -205 1 1 6 N
 16 | S -50 -95 0 -105 1 1 6 N
 17 | S -50 5 0 -5 1 1 6 N
 18 | S -50 105 0 95 1 1 6 N
 19 | S -50 150 50 -250 1 1 10 f
 20 | X Pin_1 1 -200 100 150 R 50 50 1 1 P
 21 | X Pin_2 2 -200 0 150 R 50 50 1 1 P
 22 | X Pin_3 3 -200 -100 150 R 50 50 1 1 P
 23 | X Pin_4 4 -200 -200 150 R 50 50 1 1 P
 24 | ENDDRAW
 25 | ENDDEF
 26 | #
 27 | # Connector_USB_C_Receptacle_USB2.0
 28 | #
 29 | DEF Connector_USB_C_Receptacle_USB2.0 J 0 40 Y Y 1 F N
 30 | F0 "J" -400 750 50 H V L CNN
 31 | F1 "Connector_USB_C_Receptacle_USB2.0" 750 750 50 H V R CNN
 32 | F2 "" 150 0 50 H I C CNN
 33 | F3 "" 150 0 50 H I C CNN
 34 | $FPLIST
 35 |  USB*C*Receptacle*
 36 | $ENDFPLIST
 37 | DRAW
 38 | A -275 -150 75 -1799 -1 0 1 20 N -350 -150 -200 -150
 39 | A -275 -150 25 -1799 -1 0 1 10 N -300 -150 -250 -150
 40 | A -275 -150 25 -1799 -1 0 1 10 F -300 -150 -250 -150
 41 | A -275 150 25 1 1799 0 1 10 F -250 150 -300 150
 42 | A -275 150 25 1 1799 0 1 10 N -250 150 -300 150
 43 | A -275 150 75 1 1799 0 1 20 N -200 150 -350 150
 44 | C -100 45 25 0 1 10 F
 45 | C 0 -230 50 0 1 0 F
 46 | S -10 -700 10 -660 0 0 0 N
 47 | S 400 -590 360 -610 0 0 0 N
 48 | S 400 -490 360 -510 0 0 0 N
 49 | S 400 -190 360 -210 0 0 0 N
 50 | S 400 -90 360 -110 0 0 0 N
 51 | S 400 10 360 -10 0 0 0 N
 52 | S 400 110 360 90 0 0 0 N
 53 | S 400 310 360 290 0 0 0 N
 54 | S 400 410 360 390 0 0 0 N
 55 | S 400 610 360 590 0 0 0 N
 56 | S -400 700 400 -700 0 1 10 f
 57 | S -300 -150 -250 150 0 1 10 F
 58 | S 75 70 125 120 0 1 10 F
 59 | P 2 0 1 20 -350 -150 -350 150 N
 60 | P 2 0 1 20 -200 150 -200 -150 N
 61 | P 2 0 1 20 0 -230 0 170 N
 62 | P 3 0 1 20 0 -130 -100 -30 -100 20 N
 63 | P 3 0 1 20 0 -80 100 20 100 70 N
 64 | P 4 0 1 10 -50 170 0 270 50 170 -50 170 F
 65 | X GND A1 0 -900 200 U 50 50 1 1 W
 66 | X GND A12 0 -900 200 U 50 50 1 1 P N
 67 | X VBUS A4 600 600 200 L 50 50 1 1 W
 68 | X CC1 A5 600 400 200 L 50 50 1 1 B
 69 | X D+ A6 600 -100 200 L 50 50 1 1 B
 70 | X D- A7 600 100 200 L 50 50 1 1 B
 71 | X SBU1 A8 600 -500 200 L 50 50 1 1 B
 72 | X VBUS A9 600 600 200 L 50 50 1 1 P N
 73 | X GND B1 0 -900 200 U 50 50 1 1 P N
 74 | X GND B12 0 -900 200 U 50 50 1 1 P N
 75 | X VBUS B4 600 600 200 L 50 50 1 1 P N
 76 | X CC2 B5 600 300 200 L 50 50 1 1 B
 77 | X D+ B6 600 -200 200 L 50 50 1 1 B
 78 | X D- B7 600 0 200 L 50 50 1 1 B
 79 | X SBU2 B8 600 -600 200 L 50 50 1 1 B
 80 | X VBUS B9 600 600 200 L 50 50 1 1 P N
 81 | X SHIELD S1 -300 -900 200 U 50 50 1 1 P
 82 | ENDDRAW
 83 | ENDDEF
 84 | #
 85 | # Device_C
 86 | #
 87 | DEF Device_C C 0 10 N Y 1 F N
 88 | F0 "C" 25 100 50 H V L CNN
 89 | F1 "Device_C" 25 -100 50 H V L CNN
 90 | F2 "" 38 -150 50 H I C CNN
 91 | F3 "" 0 0 50 H I C CNN
 92 | $FPLIST
 93 |  C_*
 94 | $ENDFPLIST
 95 | DRAW
 96 | P 2 0 1 20 -80 -30 80 -30 N
 97 | P 2 0 1 20 -80 30 80 30 N
 98 | X ~ 1 0 150 110 D 50 50 1 1 P
 99 | X ~ 2 0 -150 110 U 50 50 1 1 P
100 | ENDDRAW
101 | ENDDEF
102 | #
103 | # Device_CP1
104 | #
105 | DEF Device_CP1 C 0 10 N N 1 F N
106 | F0 "C" 25 100 50 H V L CNN
107 | F1 "Device_CP1" 25 -100 50 H V L CNN
108 | F2 "" 0 0 50 H I C CNN
109 | F3 "" 0 0 50 H I C CNN
110 | $FPLIST
111 |  CP_*
112 | $ENDFPLIST
113 | DRAW
114 | A 0 -150 128 1287 513 0 1 20 N -80 -50 80 -50
115 | P 2 0 1 20 -80 30 80 30 N
116 | P 2 0 1 0 -70 90 -30 90 N
117 | P 2 0 1 0 -50 70 -50 110 N
118 | X ~ 1 0 150 110 D 50 50 1 1 P
119 | X ~ 2 0 -150 130 U 50 50 1 1 P
120 | ENDDRAW
121 | ENDDEF
122 | #
123 | # Device_R
124 | #
125 | DEF Device_R R 0 0 N Y 1 F N
126 | F0 "R" 80 0 50 V V C CNN
127 | F1 "Device_R" 0 0 50 V V C CNN
128 | F2 "" -70 0 50 V I C CNN
129 | F3 "" 0 0 50 H I C CNN
130 | $FPLIST
131 |  R_*
132 | $ENDFPLIST
133 | DRAW
134 | S -40 -100 40 100 0 1 10 N
135 | X ~ 1 0 150 50 D 50 50 1 1 P
136 | X ~ 2 0 -150 50 U 50 50 1 1 P
137 | ENDDRAW
138 | ENDDEF
139 | #
140 | # Interface_USB_MCP2221AxP
141 | #
142 | DEF Interface_USB_MCP2221AxP U 0 20 Y Y 1 F N
143 | F0 "U" -300 650 50 H V C CNN
144 | F1 "Interface_USB_MCP2221AxP" 500 650 50 H V C CNN
145 | F2 "Package_DIP:DIP-14_W7.62mm" 0 1000 50 H I C CNN
146 | F3 "" 0 700 50 H I C CNN
147 | $FPLIST
148 |  DIP*W7.62mm*
149 | $ENDFPLIST
150 | DRAW
151 | S -300 600 300 -500 0 1 10 f
152 | X VDD 1 0 700 100 D 50 50 1 1 W
153 | X SCL 10 400 400 100 L 50 50 1 1 B
154 | X VUSB 11 100 700 100 D 50 50 1 1 P
155 | X D- 12 -400 0 100 R 50 50 1 1 B
156 | X D+ 13 -400 100 100 R 50 50 1 1 B
157 | X VSS 14 0 -600 100 U 50 50 1 1 W
158 | X GP0 2 400 -100 100 L 50 50 1 1 B
159 | X GP1 3 400 -200 100 L 50 50 1 1 B
160 | X ~RST 4 -400 500 100 R 50 50 1 1 I
161 | X URx 5 400 200 100 L 50 50 1 1 I
162 | X UTx 6 400 100 100 L 50 50 1 1 O
163 | X GP2 7 400 -300 100 L 50 50 1 1 B
164 | X GP3 8 400 -400 100 L 50 50 1 1 B
165 | X SDA 9 400 500 100 L 50 50 1 1 B
166 | ENDDRAW
167 | ENDDEF
168 | #
169 | # Mechanical_MountingHole
170 | #
171 | DEF Mechanical_MountingHole H 0 40 Y Y 1 F N
172 | F0 "H" 0 200 50 H V C CNN
173 | F1 "Mechanical_MountingHole" 0 125 50 H V C CNN
174 | F2 "" 0 0 50 H I C CNN
175 | F3 "" 0 0 50 H I C CNN
176 | $FPLIST
177 |  MountingHole*
178 | $ENDFPLIST
179 | DRAW
180 | C 0 0 50 0 1 50 N
181 | ENDDRAW
182 | ENDDEF
183 | #
184 | # RF_Module_ESP-12F
185 | #
186 | DEF RF_Module_ESP-12F U 0 20 Y Y 1 F N
187 | F0 "U" -500 750 50 H V L CNN
188 | F1 "RF_Module_ESP-12F" 500 750 50 H V R CNN
189 | F2 "RF_Module:ESP-12E" 0 0 50 H I C CNN
190 | F3 "" -350 100 50 H I C CNN
191 | ALIAS ESP-12F
192 | $FPLIST
193 |  ESP?12*
194 | $ENDFPLIST
195 | DRAW
196 | S -500 700 500 -600 0 1 10 f
197 | X ~RST 1 -600 600 100 R 50 50 1 1 I
198 | X MISO 10 -600 -100 100 R 50 50 1 1 B
199 | X GPIO9 11 -600 -200 100 R 50 50 1 1 B
200 | X GPIO10 12 -600 -300 100 R 50 50 1 1 B
201 | X MOSI 13 -600 -400 100 R 50 50 1 1 B
202 | X SCLK 14 -600 -500 100 R 50 50 1 1 B
203 | X GND 15 0 -700 100 U 50 50 1 1 W
204 | X GPIO15 16 600 -300 100 L 50 50 1 1 B
205 | X GPIO2 17 600 400 100 L 50 50 1 1 B
206 | X GPIO0 18 600 600 100 L 50 50 1 1 B
207 | X GPIO4 19 600 200 100 L 50 50 1 1 B
208 | X ADC 2 -600 200 100 R 50 50 1 1 I
209 | X GPIO5 20 600 100 100 L 50 50 1 1 B
210 | X GPIO3/RXD 21 600 300 100 L 50 50 1 1 B
211 | X GPIO1/TXD 22 600 500 100 L 50 50 1 1 B
212 | X EN 3 -600 400 100 R 50 50 1 1 I
213 | X GPIO16 4 600 -400 100 L 50 50 1 1 B
214 | X GPIO14 5 600 -200 100 L 50 50 1 1 B
215 | X GPIO12 6 600 0 100 L 50 50 1 1 B
216 | X GPIO13 7 600 -100 100 L 50 50 1 1 B
217 | X VCC 8 0 800 100 D 50 50 1 1 W
218 | X CS0 9 -600 0 100 R 50 50 1 1 I
219 | ENDDRAW
220 | ENDDEF
221 | #
222 | # Regulator_Linear_MCP1700-3302E_TO92
223 | #
224 | DEF Regulator_Linear_MCP1700-3302E_TO92 U 0 10 Y Y 1 F N
225 | F0 "U" -150 -125 50 H V C CNN
226 | F1 "Regulator_Linear_MCP1700-3302E_TO92" 0 -125 50 H V L CNN
227 | F2 "Package_TO_SOT_THT:TO-92_Inline" 0 -200 50 H I C CIN
228 | F3 "" 0 0 50 H I C CNN
229 | ALIAS LM79L12_TO92 LM79L15_TO92 L79L05_TO92 L79L08_TO92 L79L12_TO92 L79L15_TO92 MCP1700-3002E_TO92 MCP1700-1202E_TO92 MCP1700-1802E_TO92 MCP1700-2502E_TO92 MCP1700-2802E_TO92 MCP1700-3302E_TO92 MCP1700-5002E_TO92
230 | $FPLIST
231 |  TO?92*
232 | $ENDFPLIST
233 | DRAW
234 | S -200 200 200 -75 0 1 10 f
235 | X GND 1 0 300 100 D 50 50 1 1 W
236 | X VI 2 -300 0 100 R 50 50 1 1 W
237 | X VO 3 300 0 100 L 50 50 1 1 w
238 | ENDDRAW
239 | ENDDEF
240 | #
241 | # pm_25_Plantower-PM2.5
242 | #
243 | DEF pm_25_Plantower-PM2.5 U 0 40 Y Y 1 F N
244 | F0 "U" -200 350 50 H V C CNN
245 | F1 "pm_25_Plantower-PM2.5" 400 -400 50 H V C CNN
246 | F2 "" 0 0 50 H I C CNN
247 | F3 "" 0 0 50 H I C CNN
248 | DRAW
249 | S -250 300 200 -250 0 1 0 N
250 | X NC 1 -350 -200 100 R 50 50 1 1 N
251 | X NC 2 -350 -100 100 R 50 50 1 1 N
252 | X RST 3 -350 100 100 R 50 50 1 1 I
253 | X TX 4 300 -150 100 L 50 50 1 1 I
254 | X RX 5 300 150 100 L 50 50 1 1 I
255 | X SET 6 -350 200 100 R 50 50 1 1 I
256 | X GND 7 0 -350 100 U 50 50 1 1 I
257 | X VCC 8 0 400 100 D 50 50 1 1 I
258 | ENDDRAW
259 | ENDDEF
260 | #
261 | # power_+3.3V
262 | #
263 | DEF power_+3.3V #PWR 0 0 Y Y 1 F P
264 | F0 "#PWR" 0 -150 50 H I C CNN
265 | F1 "power_+3.3V" 0 140 50 H V C CNN
266 | F2 "" 0 0 50 H I C CNN
267 | F3 "" 0 0 50 H I C CNN
268 | ALIAS +3.3V
269 | DRAW
270 | P 2 0 1 0 -30 50 0 100 N
271 | P 2 0 1 0 0 0 0 100 N
272 | P 2 0 1 0 0 100 30 50 N
273 | X +3V3 1 0 0 0 U 50 50 1 1 W N
274 | ENDDRAW
275 | ENDDEF
276 | #
277 | # power_+5V
278 | #
279 | DEF power_+5V #PWR 0 0 Y Y 1 F P
280 | F0 "#PWR" 0 -150 50 H I C CNN
281 | F1 "power_+5V" 0 140 50 H V C CNN
282 | F2 "" 0 0 50 H I C CNN
283 | F3 "" 0 0 50 H I C CNN
284 | DRAW
285 | P 2 0 1 0 -30 50 0 100 N
286 | P 2 0 1 0 0 0 0 100 N
287 | P 2 0 1 0 0 100 30 50 N
288 | X +5V 1 0 0 0 U 50 50 1 1 W N
289 | ENDDRAW
290 | ENDDEF
291 | #
292 | # power_GND
293 | #
294 | DEF power_GND #PWR 0 0 Y Y 1 F P
295 | F0 "#PWR" 0 -250 50 H I C CNN
296 | F1 "power_GND" 0 -150 50 H V C CNN
297 | F2 "" 0 0 50 H I C CNN
298 | F3 "" 0 0 50 H I C CNN
299 | DRAW
300 | P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
301 | X GND 1 0 0 0 D 50 50 1 1 W N
302 | ENDDRAW
303 | ENDDEF
304 | #
305 | #End Library
306 | 


--------------------------------------------------------------------------------
/pcb/pm_25-rescue.dcm:
--------------------------------------------------------------------------------
1 | EESchema-DOCLIB  Version 2.0
2 | #
3 | #End Doc Library
4 | 


--------------------------------------------------------------------------------
/pcb/pm_25-rescue.lib:
--------------------------------------------------------------------------------
 1 | EESchema-LIBRARY Version 2.4
 2 | #encoding utf-8
 3 | #
 4 | # ESP-12F-ESP8266
 5 | #
 6 | DEF ESP-12F-ESP8266 U 0 40 Y Y 1 F N
 7 | F0 "U" 0 -100 50 H V C CNN
 8 | F1 "ESP-12F-ESP8266" 0 100 50 H V C CNN
 9 | F2 "" 0 0 50 H I C CNN
10 | F3 "" 0 0 50 H I C CNN
11 | $FPLIST
12 |  ESP-12E
13 |  ESP-12E_SMD
14 | $ENDFPLIST
15 | DRAW
16 | S -600 -600 600 600 1 0 0 N
17 | X REST 1 -900 300 300 R 50 50 1 1 I
18 | X GPIO15 10 900 -300 300 L 50 50 1 1 B
19 | X GPIO2 11 900 -200 300 L 50 50 1 1 B
20 | X GPIO0 12 900 -100 300 L 50 50 1 1 B
21 | X GPIO4 13 900 0 300 L 50 50 1 1 B
22 | X GPIO5 14 900 100 300 L 50 50 1 1 B
23 | X RXD 15 900 200 300 L 50 50 1 1 I
24 | X TXD 16 900 300 300 L 50 50 1 1 O
25 | X CS0 17 -250 -900 300 U 50 50 1 1 B
26 | X MISO 18 -150 -900 300 U 50 50 1 1 B
27 | X GPIO9 19 -50 -900 300 U 50 50 1 1 B
28 | X ADC 2 -900 200 300 R 50 50 1 1 P
29 | X GPIO10 20 50 -900 300 U 50 50 1 1 B
30 | X MOSI 21 150 -900 300 U 50 50 1 1 B
31 | X SCLK 22 250 -900 300 U 50 50 1 1 B
32 | X CH_PD 3 -900 100 300 R 50 50 1 1 I
33 | X GPIO16 4 -900 0 300 R 50 50 1 1 B
34 | X GPIO14 5 -900 -100 300 R 50 50 1 1 B
35 | X GPIO12 6 -900 -200 300 R 50 50 1 1 B
36 | X GPIO13 7 -900 -300 300 R 50 50 1 1 B
37 | X VCC 8 -900 -400 300 R 50 50 1 1 W
38 | X GND 9 900 -400 300 L 50 50 1 1 W
39 | ENDDRAW
40 | ENDDEF
41 | #
42 | #End Library
43 | 


--------------------------------------------------------------------------------
/pcb/pm_25.dcm:
--------------------------------------------------------------------------------
1 | EESchema-DOCLIB  Version 2.0
2 | #
3 | #End Doc Library
4 | 


--------------------------------------------------------------------------------
/pcb/pm_25.lib:
--------------------------------------------------------------------------------
 1 | EESchema-LIBRARY Version 2.4
 2 | #encoding utf-8
 3 | #
 4 | # Plantower-PM2.5
 5 | #
 6 | DEF Plantower-PM2.5 U 0 40 Y Y 1 F N
 7 | F0 "U" -200 350 50 H V C CNN
 8 | F1 "Plantower-PM2.5" 400 -400 50 H V C CNN
 9 | F2 "" 0 0 50 H I C CNN
10 | F3 "" 0 0 50 H I C CNN
11 | DRAW
12 | S -250 300 200 -250 0 1 0 N
13 | X NC 1 -350 -200 100 R 50 50 1 1 N
14 | X NC 2 -350 -100 100 R 50 50 1 1 N
15 | X RST 3 -350 100 100 R 50 50 1 1 I
16 | X TX 4 300 -150 100 L 50 50 1 1 I
17 | X RX 5 300 150 100 L 50 50 1 1 I
18 | X SET 6 -350 200 100 R 50 50 1 1 I
19 | X GND 7 0 -350 100 U 50 50 1 1 I
20 | X VCC 8 0 400 100 D 50 50 1 1 I
21 | ENDDRAW
22 | ENDDEF
23 | #
24 | # SI7021
25 | #
26 | DEF SI7021 U 0 40 Y Y 1 F N
27 | F0 "U" -200 250 50 H V C CNN
28 | F1 "SI7021" 200 -250 50 H V C CNN
29 | F2 "" 0 0 50 H I C CNN
30 | F3 "" 0 0 50 H I C CNN
31 | DRAW
32 | S -250 200 200 -200 0 1 0 N
33 | X CL 1 -350 -100 100 R 50 50 1 1 I
34 | X DA 2 -350 100 100 R 50 50 1 1 I
35 | X + 3 0 300 100 D 50 50 1 1 I
36 | X - 4 0 -300 100 U 50 50 1 1 I
37 | ENDDRAW
38 | ENDDEF
39 | #
40 | # USBPower
41 | #
42 | DEF USBPower PS 0 40 Y Y 1 F N
43 | F0 "PS" -350 350 50 H V C CNN
44 | F1 "USBPower" 250 -450 50 H V C CNN
45 | F2 "" 0 0 50 H I C CNN
46 | F3 "" 0 0 50 H I C CNN
47 | DRAW
48 | S -250 350 250 -350 0 1 0 N
49 | X VCC 1 0 450 100 D 50 50 1 1 w
50 | X D- 2 -350 100 100 R 50 50 1 1 I
51 | X D+ 3 -350 0 100 R 50 50 1 1 I
52 | X ID 4 -350 -100 100 R 50 50 1 1 I
53 | X GND 5 0 -450 100 U 50 50 1 1 w
54 | ENDDRAW
55 | ENDDEF
56 | #
57 | #End Library
58 | 


--------------------------------------------------------------------------------
/pcb/pm_25.net2:
--------------------------------------------------------------------------------
  1 | (export (version D)
  2 |   (design
  3 |     (source /Users/aaron/git/esp8266aq/pcb/pm_25.sch)
  4 |     (date "Wednesday, March 10, 2021 at 07:53:15 AM")
  5 |     (tool "Eeschema (5.1.5-0-10_14)")
  6 |     (sheet (number 1) (name /) (tstamps /)
  7 |       (title_block
  8 |         (title "PM-2.5 / Temp Wifi Sensor")
  9 |         (company)
 10 |         (rev v04)
 11 |         (date 2021-03-09)
 12 |         (source pm_25.sch)
 13 |         (comment (number 1) (value ""))
 14 |         (comment (number 2) (value creativecommons.org/licenses/by/4.0))
 15 |         (comment (number 3) (value "License: CC BY 4.0"))
 16 |         (comment (number 4) (value "Author: Aaron Patterson")))))
 17 |   (components
 18 |     (comp (ref U4)
 19 |       (value PM2.5)
 20 |       (footprint Connector_Molex:Molex_PicoBlade_53261-0871_1x08-1MP_P1.25mm_Horizontal)
 21 |       (libsource (lib pm_25) (part Plantower-PM2.5) (description ""))
 22 |       (sheetpath (names /) (tstamps /))
 23 |       (tstamp 5E113090))
 24 |     (comp (ref C2)
 25 |       (value 10uF)
 26 |       (footprint Capacitor_THT:CP_Radial_D4.0mm_P2.00mm)
 27 |       (datasheet ~)
 28 |       (libsource (lib Device) (part CP1) (description "Polarized capacitor, US symbol"))
 29 |       (sheetpath (names /) (tstamps /))
 30 |       (tstamp 5E116234))
 31 |     (comp (ref C1)
 32 |       (value 100nF)
 33 |       (footprint Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm)
 34 |       (datasheet ~)
 35 |       (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
 36 |       (sheetpath (names /) (tstamps /))
 37 |       (tstamp 5E11689B))
 38 |     (comp (ref U3)
 39 |       (value ESP-12F)
 40 |       (footprint RF_Module:ESP-12E)
 41 |       (libsource (lib RF_Module) (part ESP-12F) (description "802.11 b/g/n Wi-Fi Module"))
 42 |       (sheetpath (names /) (tstamps /))
 43 |       (tstamp 600365AB))
 44 |     (comp (ref U2)
 45 |       (value MCP2221AxP)
 46 |       (footprint Package_DIP:DIP-14_W7.62mm)
 47 |       (datasheet http://ww1.microchip.com/downloads/en/DeviceDoc/20005565B.pdf)
 48 |       (libsource (lib Interface_USB) (part MCP2221AxP) (description "USB to I2C/UART Protocol Converter with GPIO, DIP-14"))
 49 |       (sheetpath (names /) (tstamps /))
 50 |       (tstamp 60039093))
 51 |     (comp (ref R1)
 52 |       (value 10k)
 53 |       (footprint Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal)
 54 |       (datasheet ~)
 55 |       (libsource (lib Device) (part R) (description Resistor))
 56 |       (sheetpath (names /) (tstamps /))
 57 |       (tstamp 60059B68))
 58 |     (comp (ref C3)
 59 |       (value 47nf)
 60 |       (footprint Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm)
 61 |       (datasheet ~)
 62 |       (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
 63 |       (sheetpath (names /) (tstamps /))
 64 |       (tstamp 6005BC47))
 65 |     (comp (ref U1)
 66 |       (value MCP1700)
 67 |       (footprint Package_TO_SOT_THT:TO-92_Inline)
 68 |       (datasheet http://ww1.microchip.com/downloads/en/DeviceDoc/20001826D.pdf)
 69 |       (libsource (lib Regulator_Linear) (part MCP1700-3302E_TO92) (description "250mA Low Quiscent Current LDO, 3.3V output, TO-92"))
 70 |       (sheetpath (names /) (tstamps /))
 71 |       (tstamp 60078EC3))
 72 |     (comp (ref J2)
 73 |       (value header)
 74 |       (footprint Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical)
 75 |       (datasheet ~)
 76 |       (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
 77 |       (sheetpath (names /) (tstamps /))
 78 |       (tstamp 60093EF5))
 79 |     (comp (ref J1)
 80 |       (value USB_C_Receptacle_USB2.0)
 81 |       (footprint Connector_USB:USB_C_Receptacle_GCT_USB4085)
 82 |       (datasheet https://www.usb.org/sites/default/files/documents/usb_type-c.zip)
 83 |       (libsource (lib Connector) (part USB_C_Receptacle_USB2.0) (description "USB 2.0-only Type-C Receptacle connector"))
 84 |       (sheetpath (names /) (tstamps /))
 85 |       (tstamp 600ACD7F))
 86 |     (comp (ref H1)
 87 |       (value MountingHole)
 88 |       (footprint MountingHole:MountingHole_2.5mm_Pad_Via)
 89 |       (datasheet ~)
 90 |       (libsource (lib Mechanical) (part MountingHole) (description "Mounting Hole without connection"))
 91 |       (sheetpath (names /) (tstamps /))
 92 |       (tstamp 600B95C9))
 93 |     (comp (ref H2)
 94 |       (value MountingHole)
 95 |       (footprint MountingHole:MountingHole_2.5mm_Pad_Via)
 96 |       (datasheet ~)
 97 |       (libsource (lib Mechanical) (part MountingHole) (description "Mounting Hole without connection"))
 98 |       (sheetpath (names /) (tstamps /))
 99 |       (tstamp 600B9C28))
100 |     (comp (ref H3)
101 |       (value MountingHole)
102 |       (footprint MountingHole:MountingHole_2.5mm_Pad_Via)
103 |       (datasheet ~)
104 |       (libsource (lib Mechanical) (part MountingHole) (description "Mounting Hole without connection"))
105 |       (sheetpath (names /) (tstamps /))
106 |       (tstamp 600BA0A1))
107 |     (comp (ref H4)
108 |       (value MountingHole)
109 |       (footprint MountingHole:MountingHole_2.5mm_Pad_Via)
110 |       (datasheet ~)
111 |       (libsource (lib Mechanical) (part MountingHole) (description "Mounting Hole without connection"))
112 |       (sheetpath (names /) (tstamps /))
113 |       (tstamp 600BA5D5))
114 |     (comp (ref R2)
115 |       (value 10k)
116 |       (footprint Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal)
117 |       (datasheet ~)
118 |       (libsource (lib Device) (part R) (description Resistor))
119 |       (sheetpath (names /) (tstamps /))
120 |       (tstamp 600BB1DB))
121 |     (comp (ref J3)
122 |       (value "I2C 3.3v")
123 |       (footprint Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical)
124 |       (datasheet ~)
125 |       (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
126 |       (sheetpath (names /) (tstamps /))
127 |       (tstamp 600889C9))
128 |     (comp (ref J4)
129 |       (value "I2C 5v")
130 |       (footprint Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical)
131 |       (datasheet ~)
132 |       (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
133 |       (sheetpath (names /) (tstamps /))
134 |       (tstamp 600F9C93))
135 |     (comp (ref R3)
136 |       (value 5.1k)
137 |       (footprint Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal)
138 |       (datasheet ~)
139 |       (libsource (lib Device) (part R) (description Resistor))
140 |       (sheetpath (names /) (tstamps /))
141 |       (tstamp 60483EC3))
142 |     (comp (ref R4)
143 |       (value 5.1k)
144 |       (footprint Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal)
145 |       (datasheet ~)
146 |       (libsource (lib Device) (part R) (description Resistor))
147 |       (sheetpath (names /) (tstamps /))
148 |       (tstamp 60484D3B)))
149 |   (libparts
150 |     (libpart (lib Connector) (part USB_C_Receptacle_USB2.0)
151 |       (description "USB 2.0-only Type-C Receptacle connector")
152 |       (docs https://www.usb.org/sites/default/files/documents/usb_type-c.zip)
153 |       (footprints
154 |         (fp USB*C*Receptacle*))
155 |       (fields
156 |         (field (name Reference) J)
157 |         (field (name Value) USB_C_Receptacle_USB2.0))
158 |       (pins
159 |         (pin (num A1) (name GND) (type power_in))
160 |         (pin (num A4) (name VBUS) (type power_in))
161 |         (pin (num A5) (name CC1) (type BiDi))
162 |         (pin (num A6) (name D+) (type BiDi))
163 |         (pin (num A7) (name D-) (type BiDi))
164 |         (pin (num A8) (name SBU1) (type BiDi))
165 |         (pin (num A9) (name VBUS) (type passive))
166 |         (pin (num A12) (name GND) (type passive))
167 |         (pin (num B1) (name GND) (type passive))
168 |         (pin (num B4) (name VBUS) (type passive))
169 |         (pin (num B5) (name CC2) (type BiDi))
170 |         (pin (num B6) (name D+) (type BiDi))
171 |         (pin (num B7) (name D-) (type BiDi))
172 |         (pin (num B8) (name SBU2) (type BiDi))
173 |         (pin (num B9) (name VBUS) (type passive))
174 |         (pin (num B12) (name GND) (type passive))
175 |         (pin (num S1) (name SHIELD) (type passive))))
176 |     (libpart (lib Connector_Generic) (part Conn_01x04)
177 |       (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)")
178 |       (docs ~)
179 |       (footprints
180 |         (fp Connector*:*_1x??_*))
181 |       (fields
182 |         (field (name Reference) J)
183 |         (field (name Value) Conn_01x04))
184 |       (pins
185 |         (pin (num 1) (name Pin_1) (type passive))
186 |         (pin (num 2) (name Pin_2) (type passive))
187 |         (pin (num 3) (name Pin_3) (type passive))
188 |         (pin (num 4) (name Pin_4) (type passive))))
189 |     (libpart (lib Device) (part C)
190 |       (description "Unpolarized capacitor")
191 |       (docs ~)
192 |       (footprints
193 |         (fp C_*))
194 |       (fields
195 |         (field (name Reference) C)
196 |         (field (name Value) C))
197 |       (pins
198 |         (pin (num 1) (name ~) (type passive))
199 |         (pin (num 2) (name ~) (type passive))))
200 |     (libpart (lib Device) (part CP1)
201 |       (description "Polarized capacitor, US symbol")
202 |       (docs ~)
203 |       (footprints
204 |         (fp CP_*))
205 |       (fields
206 |         (field (name Reference) C)
207 |         (field (name Value) CP1))
208 |       (pins
209 |         (pin (num 1) (name ~) (type passive))
210 |         (pin (num 2) (name ~) (type passive))))
211 |     (libpart (lib Device) (part R)
212 |       (description Resistor)
213 |       (docs ~)
214 |       (footprints
215 |         (fp R_*))
216 |       (fields
217 |         (field (name Reference) R)
218 |         (field (name Value) R))
219 |       (pins
220 |         (pin (num 1) (name ~) (type passive))
221 |         (pin (num 2) (name ~) (type passive))))
222 |     (libpart (lib Interface_USB) (part MCP2221AxP)
223 |       (description "USB to I2C/UART Protocol Converter with GPIO, DIP-14")
224 |       (docs http://ww1.microchip.com/downloads/en/DeviceDoc/20005565B.pdf)
225 |       (footprints
226 |         (fp DIP*W7.62mm*))
227 |       (fields
228 |         (field (name Reference) U)
229 |         (field (name Value) MCP2221AxP)
230 |         (field (name Footprint) Package_DIP:DIP-14_W7.62mm))
231 |       (pins
232 |         (pin (num 1) (name VDD) (type power_in))
233 |         (pin (num 2) (name GP0) (type BiDi))
234 |         (pin (num 3) (name GP1) (type BiDi))
235 |         (pin (num 4) (name ~RST) (type input))
236 |         (pin (num 5) (name URx) (type input))
237 |         (pin (num 6) (name UTx) (type output))
238 |         (pin (num 7) (name GP2) (type BiDi))
239 |         (pin (num 8) (name GP3) (type BiDi))
240 |         (pin (num 9) (name SDA) (type BiDi))
241 |         (pin (num 10) (name SCL) (type BiDi))
242 |         (pin (num 11) (name VUSB) (type passive))
243 |         (pin (num 12) (name D-) (type BiDi))
244 |         (pin (num 13) (name D+) (type BiDi))
245 |         (pin (num 14) (name VSS) (type power_in))))
246 |     (libpart (lib Mechanical) (part MountingHole)
247 |       (description "Mounting Hole without connection")
248 |       (docs ~)
249 |       (footprints
250 |         (fp MountingHole*))
251 |       (fields
252 |         (field (name Reference) H)
253 |         (field (name Value) MountingHole)))
254 |     (libpart (lib RF_Module) (part ESP-12E)
255 |       (aliases
256 |         (alias ESP-12F))
257 |       (description "802.11 b/g/n Wi-Fi Module")
258 |       (docs http://wiki.ai-thinker.com/_media/esp8266/esp8266_series_modules_user_manual_v1.1.pdf)
259 |       (footprints
260 |         (fp ESP?12*))
261 |       (fields
262 |         (field (name Reference) U)
263 |         (field (name Value) ESP-12E)
264 |         (field (name Footprint) RF_Module:ESP-12E))
265 |       (pins
266 |         (pin (num 1) (name ~RST) (type input))
267 |         (pin (num 2) (name ADC) (type input))
268 |         (pin (num 3) (name EN) (type input))
269 |         (pin (num 4) (name GPIO16) (type BiDi))
270 |         (pin (num 5) (name GPIO14) (type BiDi))
271 |         (pin (num 6) (name GPIO12) (type BiDi))
272 |         (pin (num 7) (name GPIO13) (type BiDi))
273 |         (pin (num 8) (name VCC) (type power_in))
274 |         (pin (num 9) (name CS0) (type input))
275 |         (pin (num 10) (name MISO) (type BiDi))
276 |         (pin (num 11) (name GPIO9) (type BiDi))
277 |         (pin (num 12) (name GPIO10) (type BiDi))
278 |         (pin (num 13) (name MOSI) (type BiDi))
279 |         (pin (num 14) (name SCLK) (type BiDi))
280 |         (pin (num 15) (name GND) (type power_in))
281 |         (pin (num 16) (name GPIO15) (type BiDi))
282 |         (pin (num 17) (name GPIO2) (type BiDi))
283 |         (pin (num 18) (name GPIO0) (type BiDi))
284 |         (pin (num 19) (name GPIO4) (type BiDi))
285 |         (pin (num 20) (name GPIO5) (type BiDi))
286 |         (pin (num 21) (name GPIO3/RXD) (type BiDi))
287 |         (pin (num 22) (name GPIO1/TXD) (type BiDi))))
288 |     (libpart (lib Regulator_Linear) (part LM79L05_TO92)
289 |       (aliases
290 |         (alias LM79L12_TO92)
291 |         (alias LM79L15_TO92)
292 |         (alias L79L05_TO92)
293 |         (alias L79L08_TO92)
294 |         (alias L79L12_TO92)
295 |         (alias L79L15_TO92)
296 |         (alias MCP1700-3002E_TO92)
297 |         (alias MCP1700-1202E_TO92)
298 |         (alias MCP1700-1802E_TO92)
299 |         (alias MCP1700-2502E_TO92)
300 |         (alias MCP1700-2802E_TO92)
301 |         (alias MCP1700-3302E_TO92)
302 |         (alias MCP1700-5002E_TO92))
303 |       (description "3-Terminal Negative Regulator, -5V, TO-92")
304 |       (docs http://www.ti.com/lit/ds/symlink/lm79l.pdf)
305 |       (footprints
306 |         (fp TO?92*))
307 |       (fields
308 |         (field (name Reference) U)
309 |         (field (name Value) LM79L05_TO92)
310 |         (field (name Footprint) Package_TO_SOT_THT:TO-92_Inline))
311 |       (pins
312 |         (pin (num 1) (name GND) (type power_in))
313 |         (pin (num 2) (name VI) (type power_in))
314 |         (pin (num 3) (name VO) (type power_out))))
315 |     (libpart (lib pm_25) (part Plantower-PM2.5)
316 |       (fields
317 |         (field (name Reference) U)
318 |         (field (name Value) Plantower-PM2.5))
319 |       (pins
320 |         (pin (num 1) (name NC) (type NotConnected))
321 |         (pin (num 2) (name NC) (type NotConnected))
322 |         (pin (num 3) (name RST) (type input))
323 |         (pin (num 4) (name TX) (type input))
324 |         (pin (num 5) (name RX) (type input))
325 |         (pin (num 6) (name SET) (type input))
326 |         (pin (num 7) (name GND) (type input))
327 |         (pin (num 8) (name VCC) (type input)))))
328 |   (libraries
329 |     (library (logical Connector)
330 |       (uri "/Library/Application Support/kicad/library/Connector.lib"))
331 |     (library (logical Connector_Generic)
332 |       (uri "/Library/Application Support/kicad/library/Connector_Generic.lib"))
333 |     (library (logical Device)
334 |       (uri "/Library/Application Support/kicad/library/Device.lib"))
335 |     (library (logical Interface_USB)
336 |       (uri "/Library/Application Support/kicad/library/Interface_USB.lib"))
337 |     (library (logical Mechanical)
338 |       (uri "/Library/Application Support/kicad/library/Mechanical.lib"))
339 |     (library (logical RF_Module)
340 |       (uri "/Library/Application Support/kicad/library/RF_Module.lib"))
341 |     (library (logical Regulator_Linear)
342 |       (uri "/Library/Application Support/kicad/library/Regulator_Linear.lib"))
343 |     (library (logical pm_25)
344 |       (uri /Users/aaron/git/esp8266aq/pcb/pm_25.lib)))
345 |   (nets
346 |     (net (code 1) (name "Net-(U4-Pad1)")
347 |       (node (ref U4) (pin 1)))
348 |     (net (code 2) (name "Net-(U4-Pad2)")
349 |       (node (ref U4) (pin 2)))
350 |     (net (code 3) (name "Net-(U4-Pad3)")
351 |       (node (ref U4) (pin 3)))
352 |     (net (code 4) (name "Net-(U4-Pad6)")
353 |       (node (ref U4) (pin 6)))
354 |     (net (code 5) (name GND)
355 |       (node (ref U4) (pin 7))
356 |       (node (ref J4) (pin 1))
357 |       (node (ref C2) (pin 2))
358 |       (node (ref J3) (pin 1))
359 |       (node (ref C1) (pin 2))
360 |       (node (ref R2) (pin 2))
361 |       (node (ref U3) (pin 15))
362 |       (node (ref J1) (pin S1))
363 |       (node (ref J1) (pin B12))
364 |       (node (ref J1) (pin B1))
365 |       (node (ref J1) (pin A12))
366 |       (node (ref J1) (pin A1))
367 |       (node (ref J2) (pin 3))
368 |       (node (ref R3) (pin 2))
369 |       (node (ref R4) (pin 2))
370 |       (node (ref U2) (pin 14))
371 |       (node (ref U1) (pin 1))
372 |       (node (ref C3) (pin 1)))
373 |     (net (code 6) (name +5V)
374 |       (node (ref U4) (pin 8))
375 |       (node (ref U1) (pin 2))
376 |       (node (ref J1) (pin A4))
377 |       (node (ref J4) (pin 2))
378 |       (node (ref J1) (pin A9))
379 |       (node (ref R1) (pin 1))
380 |       (node (ref J1) (pin B4))
381 |       (node (ref J1) (pin B9))
382 |       (node (ref U2) (pin 1)))
383 |     (net (code 7) (name /RST)
384 |       (node (ref U3) (pin 1))
385 |       (node (ref U2) (pin 3)))
386 |     (net (code 8) (name "Net-(U3-Pad10)")
387 |       (node (ref U3) (pin 10)))
388 |     (net (code 9) (name "Net-(U3-Pad11)")
389 |       (node (ref U3) (pin 11)))
390 |     (net (code 10) (name "Net-(U3-Pad12)")
391 |       (node (ref U3) (pin 12)))
392 |     (net (code 11) (name "Net-(U3-Pad13)")
393 |       (node (ref U3) (pin 13)))
394 |     (net (code 12) (name "Net-(U3-Pad14)")
395 |       (node (ref U3) (pin 14)))
396 |     (net (code 13) (name "Net-(U3-Pad17)")
397 |       (node (ref U3) (pin 17)))
398 |     (net (code 14) (name "Net-(U3-Pad2)")
399 |       (node (ref U3) (pin 2)))
400 |     (net (code 15) (name "Net-(U2-Pad5)")
401 |       (node (ref U2) (pin 5))
402 |       (node (ref U3) (pin 22)))
403 |     (net (code 16) (name +3V3)
404 |       (node (ref C1) (pin 1))
405 |       (node (ref J3) (pin 2))
406 |       (node (ref U3) (pin 8))
407 |       (node (ref C2) (pin 1))
408 |       (node (ref U1) (pin 3))
409 |       (node (ref J2) (pin 4))
410 |       (node (ref U3) (pin 3)))
411 |     (net (code 17) (name "Net-(U3-Pad4)")
412 |       (node (ref U3) (pin 4)))
413 |     (net (code 18) (name "Net-(U2-Pad7)")
414 |       (node (ref U3) (pin 5))
415 |       (node (ref U2) (pin 7)))
416 |     (net (code 19) (name "Net-(U2-Pad8)")
417 |       (node (ref U3) (pin 6))
418 |       (node (ref U2) (pin 8)))
419 |     (net (code 20) (name "Net-(U3-Pad7)")
420 |       (node (ref U4) (pin 4))
421 |       (node (ref U3) (pin 7)))
422 |     (net (code 21) (name "Net-(U3-Pad9)")
423 |       (node (ref U3) (pin 9)))
424 |     (net (code 22) (name "Net-(U2-Pad10)")
425 |       (node (ref U2) (pin 10)))
426 |     (net (code 23) (name /D-)
427 |       (node (ref U2) (pin 12))
428 |       (node (ref J1) (pin B7))
429 |       (node (ref J1) (pin A7)))
430 |     (net (code 24) (name /D+)
431 |       (node (ref U2) (pin 13))
432 |       (node (ref J1) (pin B6))
433 |       (node (ref J1) (pin A6)))
434 |     (net (code 25) (name /FLASH)
435 |       (node (ref U3) (pin 18))
436 |       (node (ref U2) (pin 2)))
437 |     (net (code 26) (name "Net-(U2-Pad6)")
438 |       (node (ref U3) (pin 21))
439 |       (node (ref U2) (pin 6)))
440 |     (net (code 27) (name "Net-(U2-Pad9)")
441 |       (node (ref U2) (pin 9)))
442 |     (net (code 28) (name "Net-(R1-Pad2)")
443 |       (node (ref U2) (pin 4))
444 |       (node (ref R1) (pin 2)))
445 |     (net (code 29) (name "Net-(C3-Pad2)")
446 |       (node (ref U2) (pin 11))
447 |       (node (ref C3) (pin 2)))
448 |     (net (code 30) (name /CC1)
449 |       (node (ref J1) (pin A5))
450 |       (node (ref R3) (pin 1)))
451 |     (net (code 31) (name "Net-(J1-PadA8)")
452 |       (node (ref J1) (pin A8)))
453 |     (net (code 32) (name /CC2)
454 |       (node (ref J1) (pin B5))
455 |       (node (ref R4) (pin 1)))
456 |     (net (code 33) (name "Net-(J1-PadB8)")
457 |       (node (ref J1) (pin B8)))
458 |     (net (code 34) (name "Net-(R2-Pad1)")
459 |       (node (ref R2) (pin 1))
460 |       (node (ref U4) (pin 5))
461 |       (node (ref U3) (pin 16)))
462 |     (net (code 35) (name /SDA)
463 |       (node (ref J4) (pin 3))
464 |       (node (ref J3) (pin 3))
465 |       (node (ref J2) (pin 1))
466 |       (node (ref U3) (pin 19)))
467 |     (net (code 36) (name /SCL)
468 |       (node (ref J3) (pin 4))
469 |       (node (ref J2) (pin 2))
470 |       (node (ref J4) (pin 4))
471 |       (node (ref U3) (pin 20)))))


--------------------------------------------------------------------------------
/pcb/pm_25.pretty/SI7021Breakout.kicad_mod:
--------------------------------------------------------------------------------
 1 | (module SI7021Breakout (layer F.Cu) (tedit 5E112258)
 2 |   (descr "Through hole straight pin header, 1x04, 2.54mm pitch, single row")
 3 |   (tags "Through hole pin header THT 1x04 2.54mm single row")
 4 |   (fp_text reference REF** (at -6.096 -6.14) (layer F.SilkS)
 5 |     (effects (font (size 1 1) (thickness 0.15)))
 6 |   )
 7 |   (fp_text value SI7021Breakout (at -6.096 6.14) (layer F.Fab)
 8 |     (effects (font (size 1 1) (thickness 0.15)))
 9 |   )
10 |   (fp_line (start -6.731 -5.08) (end -4.826 -5.08) (layer F.Fab) (width 0.1))
11 |   (fp_line (start -4.826 -5.08) (end -4.826 5.08) (layer F.Fab) (width 0.1))
12 |   (fp_line (start -4.826 5.08) (end -7.366 5.08) (layer F.Fab) (width 0.1))
13 |   (fp_line (start -7.366 5.08) (end -7.366 -4.445) (layer F.Fab) (width 0.1))
14 |   (fp_line (start -7.366 -4.445) (end -6.731 -5.08) (layer F.Fab) (width 0.1))
15 |   (fp_line (start -7.426 5.14) (end -4.766 5.14) (layer F.SilkS) (width 0.12))
16 |   (fp_line (start -7.426 -2.54) (end -7.426 5.14) (layer F.SilkS) (width 0.12))
17 |   (fp_line (start -4.766 -2.54) (end -4.766 5.14) (layer F.SilkS) (width 0.12))
18 |   (fp_line (start -7.426 -2.54) (end -4.766 -2.54) (layer F.SilkS) (width 0.12))
19 |   (fp_line (start -7.426 -3.81) (end -7.426 -5.14) (layer F.SilkS) (width 0.12))
20 |   (fp_line (start -7.426 -5.14) (end -6.096 -5.14) (layer F.SilkS) (width 0.12))
21 |   (fp_line (start -7.896 -5.61) (end -7.896 5.59) (layer F.CrtYd) (width 0.05))
22 |   (fp_line (start -7.896 5.59) (end -4.296 5.59) (layer F.CrtYd) (width 0.05))
23 |   (fp_line (start -4.296 5.59) (end -4.296 -5.61) (layer F.CrtYd) (width 0.05))
24 |   (fp_line (start -4.296 -5.61) (end -7.896 -5.61) (layer F.CrtYd) (width 0.05))
25 |   (fp_text user %R (at -6.096 0 90) (layer F.Fab)
26 |     (effects (font (size 1 1) (thickness 0.15)))
27 |   )
28 |   (fp_line (start 8.255 -8.255) (end 8.255 8.255) (layer F.SilkS) (width 0.12))
29 |   (fp_line (start -8.255 -8.255) (end 8.255 -8.255) (layer F.SilkS) (width 0.12))
30 |   (fp_line (start -8.255 8.255) (end 8.255 8.255) (layer F.SilkS) (width 0.12))
31 |   (fp_line (start -8.255 -8.255) (end -8.255 8.255) (layer F.SilkS) (width 0.12))
32 |   (pad 4 thru_hole rect (at -6.096 -3.81) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
33 |   (pad 3 thru_hole oval (at -6.096 -1.27) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
34 |   (pad 2 thru_hole oval (at -6.096 1.27) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
35 |   (pad 1 thru_hole oval (at -6.096 3.81) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
36 |   (model ${KISYS3DMOD}/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x04_P2.54mm_Vertical.wrl
37 |     (at (xyz 0 0 0))
38 |     (scale (xyz 1 1 1))
39 |     (rotate (xyz 0 0 0))
40 |   )
41 | )
42 | 


--------------------------------------------------------------------------------
/pcb/pm_25.pretty/USBBreakout.kicad_mod:
--------------------------------------------------------------------------------
 1 | (module USBBreakout (layer F.Cu) (tedit 5E1124F6)
 2 |   (descr "Through hole straight pin header, 1x05, 2.54mm pitch, single row")
 3 |   (tags "Through hole pin header THT 1x05 2.54mm single row")
 4 |   (fp_text reference REF** (at 1.524 -7.366) (layer F.SilkS)
 5 |     (effects (font (size 1 1) (thickness 0.15)))
 6 |   )
 7 |   (fp_text value USBBreakout (at 1.778 5.588) (layer F.Fab)
 8 |     (effects (font (size 1 1) (thickness 0.15)))
 9 |   )
10 |   (fp_line (start -5.969 -6.35) (end -4.064 -6.35) (layer F.Fab) (width 0.1))
11 |   (fp_line (start -4.064 -6.35) (end -4.064 6.35) (layer F.Fab) (width 0.1))
12 |   (fp_line (start -4.064 6.35) (end -6.604 6.35) (layer F.Fab) (width 0.1))
13 |   (fp_line (start -6.604 6.35) (end -6.604 -5.715) (layer F.Fab) (width 0.1))
14 |   (fp_line (start -6.604 -5.715) (end -5.969 -6.35) (layer F.Fab) (width 0.1))
15 |   (fp_line (start -6.664 6.41) (end -4.004 6.41) (layer F.SilkS) (width 0.12))
16 |   (fp_line (start -6.664 -3.81) (end -6.664 6.41) (layer F.SilkS) (width 0.12))
17 |   (fp_line (start -4.004 -3.81) (end -4.004 6.41) (layer F.SilkS) (width 0.12))
18 |   (fp_line (start -6.664 -3.81) (end -4.004 -3.81) (layer F.SilkS) (width 0.12))
19 |   (fp_line (start -6.664 -5.08) (end -6.664 -6.41) (layer F.SilkS) (width 0.12))
20 |   (fp_line (start -6.664 -6.41) (end -5.334 -6.41) (layer F.SilkS) (width 0.12))
21 |   (fp_line (start -7.134 -6.88) (end -7.134 6.87) (layer F.CrtYd) (width 0.05))
22 |   (fp_line (start -7.134 6.87) (end -3.534 6.87) (layer F.CrtYd) (width 0.05))
23 |   (fp_line (start -3.534 6.87) (end -3.534 -6.88) (layer F.CrtYd) (width 0.05))
24 |   (fp_line (start -3.534 -6.88) (end -7.134 -6.88) (layer F.CrtYd) (width 0.05))
25 |   (fp_text user %R (at -5.334 0 90) (layer F.Fab)
26 |     (effects (font (size 1 1) (thickness 0.15)))
27 |   )
28 |   (fp_line (start -7.112 -6.35) (end 7.112 -6.35) (layer F.SilkS) (width 0.12))
29 |   (fp_line (start -7.112 6.35) (end 7.112 6.35) (layer F.SilkS) (width 0.12))
30 |   (fp_line (start 7.112 -6.35) (end 7.112 6.35) (layer F.SilkS) (width 0.12))
31 |   (pad 5 thru_hole rect (at -5.334 -5.08) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
32 |   (pad 4 thru_hole oval (at -5.334 -2.54) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
33 |   (pad 3 thru_hole oval (at -5.334 0) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
34 |   (pad 2 thru_hole oval (at -5.334 2.54) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
35 |   (pad 1 thru_hole oval (at -5.334 5.08) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask))
36 |   (model ${KISYS3DMOD}/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x05_P2.54mm_Vertical.wrl
37 |     (at (xyz 0 0 0))
38 |     (scale (xyz 1 1 1))
39 |     (rotate (xyz 0 0 0))
40 |   )
41 | )
42 | 


--------------------------------------------------------------------------------
/pcb/pm_25.pro:
--------------------------------------------------------------------------------
  1 | update=Saturday, January 04, 2020 at 04:52:46 PM
  2 | version=1
  3 | last_client=kicad
  4 | [general]
  5 | version=1
  6 | RootSch=
  7 | BoardNm=
  8 | [cvpcb]
  9 | version=1
 10 | NetIExt=net
 11 | [eeschema]
 12 | version=1
 13 | LibDir=
 14 | [eeschema/libraries]
 15 | [schematic_editor]
 16 | version=1
 17 | PageLayoutDescrFile=
 18 | PlotDirectoryName=
 19 | SubpartIdSeparator=0
 20 | SubpartFirstId=65
 21 | NetFmtName=Pcbnew
 22 | SpiceAjustPassiveValues=0
 23 | LabSize=50
 24 | ERC_TestSimilarLabels=1
 25 | [pcbnew]
 26 | version=1
 27 | PageLayoutDescrFile=
 28 | LastNetListRead=pm_25.net
 29 | CopperLayerCount=2
 30 | BoardThickness=1.6
 31 | AllowMicroVias=0
 32 | AllowBlindVias=0
 33 | RequireCourtyardDefinitions=0
 34 | ProhibitOverlappingCourtyards=1
 35 | MinTrackWidth=0.2
 36 | MinViaDiameter=0.4
 37 | MinViaDrill=0.3
 38 | MinMicroViaDiameter=0.2
 39 | MinMicroViaDrill=0.09999999999999999
 40 | MinHoleToHole=0.25
 41 | TrackWidth1=0.25
 42 | TrackWidth2=0.762
 43 | ViaDiameter1=0.8
 44 | ViaDrill1=0.4
 45 | dPairWidth1=0.2
 46 | dPairGap1=0.25
 47 | dPairViaGap1=0.25
 48 | SilkLineWidth=0.12
 49 | SilkTextSizeV=1
 50 | SilkTextSizeH=1
 51 | SilkTextSizeThickness=0.15
 52 | SilkTextItalic=0
 53 | SilkTextUpright=1
 54 | CopperLineWidth=0.2
 55 | CopperTextSizeV=1.5
 56 | CopperTextSizeH=1.5
 57 | CopperTextThickness=0.3
 58 | CopperTextItalic=0
 59 | CopperTextUpright=1
 60 | EdgeCutLineWidth=0.05
 61 | CourtyardLineWidth=0.05
 62 | OthersLineWidth=0.15
 63 | OthersTextSizeV=1
 64 | OthersTextSizeH=1
 65 | OthersTextSizeThickness=0.15
 66 | OthersTextItalic=0
 67 | OthersTextUpright=1
 68 | SolderMaskClearance=0.051
 69 | SolderMaskMinWidth=0.25
 70 | SolderPasteClearance=0
 71 | SolderPasteRatio=-0
 72 | [pcbnew/Layer.F.Cu]
 73 | Name=F.Cu
 74 | Type=0
 75 | Enabled=1
 76 | [pcbnew/Layer.In1.Cu]
 77 | Name=In1.Cu
 78 | Type=0
 79 | Enabled=0
 80 | [pcbnew/Layer.In2.Cu]
 81 | Name=In2.Cu
 82 | Type=0
 83 | Enabled=0
 84 | [pcbnew/Layer.In3.Cu]
 85 | Name=In3.Cu
 86 | Type=0
 87 | Enabled=0
 88 | [pcbnew/Layer.In4.Cu]
 89 | Name=In4.Cu
 90 | Type=0
 91 | Enabled=0
 92 | [pcbnew/Layer.In5.Cu]
 93 | Name=In5.Cu
 94 | Type=0
 95 | Enabled=0
 96 | [pcbnew/Layer.In6.Cu]
 97 | Name=In6.Cu
 98 | Type=0
 99 | Enabled=0
100 | [pcbnew/Layer.In7.Cu]
101 | Name=In7.Cu
102 | Type=0
103 | Enabled=0
104 | [pcbnew/Layer.In8.Cu]
105 | Name=In8.Cu
106 | Type=0
107 | Enabled=0
108 | [pcbnew/Layer.In9.Cu]
109 | Name=In9.Cu
110 | Type=0
111 | Enabled=0
112 | [pcbnew/Layer.In10.Cu]
113 | Name=In10.Cu
114 | Type=0
115 | Enabled=0
116 | [pcbnew/Layer.In11.Cu]
117 | Name=In11.Cu
118 | Type=0
119 | Enabled=0
120 | [pcbnew/Layer.In12.Cu]
121 | Name=In12.Cu
122 | Type=0
123 | Enabled=0
124 | [pcbnew/Layer.In13.Cu]
125 | Name=In13.Cu
126 | Type=0
127 | Enabled=0
128 | [pcbnew/Layer.In14.Cu]
129 | Name=In14.Cu
130 | Type=0
131 | Enabled=0
132 | [pcbnew/Layer.In15.Cu]
133 | Name=In15.Cu
134 | Type=0
135 | Enabled=0
136 | [pcbnew/Layer.In16.Cu]
137 | Name=In16.Cu
138 | Type=0
139 | Enabled=0
140 | [pcbnew/Layer.In17.Cu]
141 | Name=In17.Cu
142 | Type=0
143 | Enabled=0
144 | [pcbnew/Layer.In18.Cu]
145 | Name=In18.Cu
146 | Type=0
147 | Enabled=0
148 | [pcbnew/Layer.In19.Cu]
149 | Name=In19.Cu
150 | Type=0
151 | Enabled=0
152 | [pcbnew/Layer.In20.Cu]
153 | Name=In20.Cu
154 | Type=0
155 | Enabled=0
156 | [pcbnew/Layer.In21.Cu]
157 | Name=In21.Cu
158 | Type=0
159 | Enabled=0
160 | [pcbnew/Layer.In22.Cu]
161 | Name=In22.Cu
162 | Type=0
163 | Enabled=0
164 | [pcbnew/Layer.In23.Cu]
165 | Name=In23.Cu
166 | Type=0
167 | Enabled=0
168 | [pcbnew/Layer.In24.Cu]
169 | Name=In24.Cu
170 | Type=0
171 | Enabled=0
172 | [pcbnew/Layer.In25.Cu]
173 | Name=In25.Cu
174 | Type=0
175 | Enabled=0
176 | [pcbnew/Layer.In26.Cu]
177 | Name=In26.Cu
178 | Type=0
179 | Enabled=0
180 | [pcbnew/Layer.In27.Cu]
181 | Name=In27.Cu
182 | Type=0
183 | Enabled=0
184 | [pcbnew/Layer.In28.Cu]
185 | Name=In28.Cu
186 | Type=0
187 | Enabled=0
188 | [pcbnew/Layer.In29.Cu]
189 | Name=In29.Cu
190 | Type=0
191 | Enabled=0
192 | [pcbnew/Layer.In30.Cu]
193 | Name=In30.Cu
194 | Type=0
195 | Enabled=0
196 | [pcbnew/Layer.B.Cu]
197 | Name=B.Cu
198 | Type=0
199 | Enabled=1
200 | [pcbnew/Layer.B.Adhes]
201 | Enabled=1
202 | [pcbnew/Layer.F.Adhes]
203 | Enabled=1
204 | [pcbnew/Layer.B.Paste]
205 | Enabled=1
206 | [pcbnew/Layer.F.Paste]
207 | Enabled=1
208 | [pcbnew/Layer.B.SilkS]
209 | Enabled=1
210 | [pcbnew/Layer.F.SilkS]
211 | Enabled=1
212 | [pcbnew/Layer.B.Mask]
213 | Enabled=1
214 | [pcbnew/Layer.F.Mask]
215 | Enabled=1
216 | [pcbnew/Layer.Dwgs.User]
217 | Enabled=1
218 | [pcbnew/Layer.Cmts.User]
219 | Enabled=1
220 | [pcbnew/Layer.Eco1.User]
221 | Enabled=1
222 | [pcbnew/Layer.Eco2.User]
223 | Enabled=1
224 | [pcbnew/Layer.Edge.Cuts]
225 | Enabled=1
226 | [pcbnew/Layer.Margin]
227 | Enabled=1
228 | [pcbnew/Layer.B.CrtYd]
229 | Enabled=1
230 | [pcbnew/Layer.F.CrtYd]
231 | Enabled=1
232 | [pcbnew/Layer.B.Fab]
233 | Enabled=1
234 | [pcbnew/Layer.F.Fab]
235 | Enabled=1
236 | [pcbnew/Layer.Rescue]
237 | Enabled=0
238 | [pcbnew/Netclasses]
239 | [pcbnew/Netclasses/Default]
240 | Name=Default
241 | Clearance=0.2
242 | TrackWidth=0.25
243 | ViaDiameter=0.8
244 | ViaDrill=0.4
245 | uViaDiameter=0.3
246 | uViaDrill=0.1
247 | dPairWidth=0.2
248 | dPairGap=0.25
249 | dPairViaGap=0.25
250 | 


--------------------------------------------------------------------------------
/pcb/pm_25.sch:
--------------------------------------------------------------------------------
  1 | EESchema Schematic File Version 4
  2 | EELAYER 30 0
  3 | EELAYER END
  4 | $Descr A4 11693 8268
  5 | encoding utf-8
  6 | Sheet 1 1
  7 | Title "PM-2.5 / Temp Wifi Sensor"
  8 | Date "2021-03-09"
  9 | Rev "v04"
 10 | Comp ""
 11 | Comment1 ""
 12 | Comment2 "creativecommons.org/licenses/by/4.0"
 13 | Comment3 "License: CC BY 4.0"
 14 | Comment4 "Author: Aaron Patterson"
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 22 | F 2 "Connector_Molex:Molex_PicoBlade_53261-0871_1x08-1MP_P1.25mm_Horizontal" H 7250 2750 50  0001 C CNN
 23 | F 3 "" H 7250 2750 50  0001 C CNN
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161 | 	5850 3500 5850 3400
162 | $Comp
163 | L Device:R R1
164 | U 1 1 60059B68
165 | P 5250 3550
166 | F 0 "R1" H 5320 3596 50  0000 L CNN
167 | F 1 "10k" H 5320 3505 50  0000 L CNN
168 | F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 5180 3550 50  0001 C CNN
169 | F 3 "~" H 5250 3550 50  0001 C CNN
170 | 	1    5250 3550
171 | 	1    0    0    -1  
172 | $EndComp
173 | Wire Wire Line
174 | 	5450 3700 5250 3700
175 | Wire Wire Line
176 | 	5250 3400 5850 3400
177 | Connection ~ 5850 3400
178 | Wire Wire Line
179 | 	5850 3400 5850 3250
180 | $Comp
181 | L Device:C C3
182 | U 1 1 6005BC47
183 | P 6100 3400
184 | F 0 "C3" V 5848 3400 50  0000 C CNN
185 | F 1 "47nf" V 5939 3400 50  0000 C CNN
186 | F 2 "Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6138 3250 50  0001 C CNN
187 | F 3 "~" H 6100 3400 50  0001 C CNN
188 | 	1    6100 3400
189 | 	0    1    1    0   
190 | $EndComp
191 | Wire Wire Line
192 | 	5950 3500 5950 3400
193 | $Comp
194 | L power:GND #PWR0104
195 | U 1 1 6005D7D0
196 | P 6450 3400
197 | F 0 "#PWR0104" H 6450 3150 50  0001 C CNN
198 | F 1 "GND" H 6455 3227 50  0000 C CNN
199 | F 2 "" H 6450 3400 50  0001 C CNN
200 | F 3 "" H 6450 3400 50  0001 C CNN
201 | 	1    6450 3400
202 | 	1    0    0    -1  
203 | $EndComp
204 | Wire Wire Line
205 | 	6250 3400 6450 3400
206 | $Comp
207 | L power:GND #PWR0105
208 | U 1 1 6005E546
209 | P 5850 5100
210 | F 0 "#PWR0105" H 5850 4850 50  0001 C CNN
211 | F 1 "GND" H 5855 4927 50  0000 C CNN
212 | F 2 "" H 5850 5100 50  0001 C CNN
213 | F 3 "" H 5850 5100 50  0001 C CNN
214 | 	1    5850 5100
215 | 	1    0    0    -1  
216 | $EndComp
217 | Wire Wire Line
218 | 	5850 5100 5850 4800
219 | Wire Wire Line
220 | 	10450 4500 10450 2600
221 | Wire Wire Line
222 | 	10450 2600 7550 2600
223 | $Comp
224 | L Regulator_Linear:MCP1700-3302E_TO92 U1
225 | U 1 1 60078EC3
226 | P 4400 2750
227 | F 0 "U1" H 4400 2508 50  0000 C CNN
228 | F 1 "MCP1700" H 4400 2599 50  0000 C CNN
229 | F 2 "Package_TO_SOT_THT:TO-92_Inline" H 4400 2550 50  0001 C CIN
230 | F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/20001826D.pdf" H 4400 2750 50  0001 C CNN
231 | 	1    4400 2750
232 | 	-1   0    0    1   
233 | $EndComp
234 | $Comp
235 | L power:+5V #PWR0106
236 | U 1 1 60079FF8
237 | P 4700 2400
238 | F 0 "#PWR0106" H 4700 2250 50  0001 C CNN
239 | F 1 "+5V" H 4715 2573 50  0000 C CNN
240 | F 2 "" H 4700 2400 50  0001 C CNN
241 | F 3 "" H 4700 2400 50  0001 C CNN
242 | 	1    4700 2400
243 | 	1    0    0    -1  
244 | $EndComp
245 | $Comp
246 | L power:+3.3V #PWR0107
247 | U 1 1 6007A610
248 | P 4100 2400
249 | F 0 "#PWR0107" H 4100 2250 50  0001 C CNN
250 | F 1 "+3.3V" H 4115 2573 50  0000 C CNN
251 | F 2 "" H 4100 2400 50  0001 C CNN
252 | F 3 "" H 4100 2400 50  0001 C CNN
253 | 	1    4100 2400
254 | 	1    0    0    -1  
255 | $EndComp
256 | Wire Wire Line
257 | 	4100 2750 4100 2400
258 | Wire Wire Line
259 | 	4700 2750 4700 2400
260 | $Comp
261 | L power:GND #PWR0108
262 | U 1 1 6007DBDF
263 | P 4400 3200
264 | F 0 "#PWR0108" H 4400 2950 50  0001 C CNN
265 | F 1 "GND" H 4405 3027 50  0000 C CNN
266 | F 2 "" H 4400 3200 50  0001 C CNN
267 | F 3 "" H 4400 3200 50  0001 C CNN
268 | 	1    4400 3200
269 | 	1    0    0    -1  
270 | $EndComp
271 | Wire Wire Line
272 | 	4400 3050 4400 3200
273 | $Comp
274 | L power:+3.3V #PWR0109
275 | U 1 1 60084B5A
276 | P 3950 4900
277 | F 0 "#PWR0109" H 3950 4750 50  0001 C CNN
278 | F 1 "+3.3V" H 3965 5073 50  0000 C CNN
279 | F 2 "" H 3950 4900 50  0001 C CNN
280 | F 3 "" H 3950 4900 50  0001 C CNN
281 | 	1    3950 4900
282 | 	1    0    0    -1  
283 | $EndComp
284 | $Comp
285 | L power:+3.3V #PWR0110
286 | U 1 1 6008507F
287 | P 3350 4900
288 | F 0 "#PWR0110" H 3350 4750 50  0001 C CNN
289 | F 1 "+3.3V" H 3365 5073 50  0000 C CNN
290 | F 2 "" H 3350 4900 50  0001 C CNN
291 | F 3 "" H 3350 4900 50  0001 C CNN
292 | 	1    3350 4900
293 | 	1    0    0    -1  
294 | $EndComp
295 | $Comp
296 | L power:GND #PWR0111
297 | U 1 1 600856A1
298 | P 3950 5200
299 | F 0 "#PWR0111" H 3950 4950 50  0001 C CNN
300 | F 1 "GND" H 3955 5027 50  0000 C CNN
301 | F 2 "" H 3950 5200 50  0001 C CNN
302 | F 3 "" H 3950 5200 50  0001 C CNN
303 | 	1    3950 5200
304 | 	1    0    0    -1  
305 | $EndComp
306 | $Comp
307 | L power:GND #PWR0112
308 | U 1 1 60085D70
309 | P 3350 5200
310 | F 0 "#PWR0112" H 3350 4950 50  0001 C CNN
311 | F 1 "GND" H 3355 5027 50  0000 C CNN
312 | F 2 "" H 3350 5200 50  0001 C CNN
313 | F 3 "" H 3350 5200 50  0001 C CNN
314 | 	1    3350 5200
315 | 	1    0    0    -1  
316 | $EndComp
317 | $Comp
318 | L power:GND #PWR0113
319 | U 1 1 6008C9C3
320 | P 5050 6300
321 | F 0 "#PWR0113" H 5050 6050 50  0001 C CNN
322 | F 1 "GND" H 5055 6127 50  0000 C CNN
323 | F 2 "" H 5050 6300 50  0001 C CNN
324 | F 3 "" H 5050 6300 50  0001 C CNN
325 | 	1    5050 6300
326 | 	1    0    0    -1  
327 | $EndComp
328 | $Comp
329 | L power:+3.3V #PWR0114
330 | U 1 1 6008D0A0
331 | P 5300 6300
332 | F 0 "#PWR0114" H 5300 6150 50  0001 C CNN
333 | F 1 "+3.3V" H 5315 6473 50  0000 C CNN
334 | F 2 "" H 5300 6300 50  0001 C CNN
335 | F 3 "" H 5300 6300 50  0001 C CNN
336 | 	1    5300 6300
337 | 	-1   0    0    1   
338 | $EndComp
339 | Text Label 5400 6300 3    50   ~ 0
340 | SDA
341 | Text Label 5500 6300 3    50   ~ 0
342 | SCL
343 | Text Label 9550 4000 0    50   ~ 0
344 | SDA
345 | Text Label 9550 4100 0    50   ~ 0
346 | SCL
347 | $Comp
348 | L Connector_Generic:Conn_01x04 J2
349 | U 1 1 60093EF5
350 | P 3700 6150
351 | F 0 "J2" V 3664 5862 50  0000 R CNN
352 | F 1 "header" V 3573 5862 50  0000 R CNN
353 | F 2 "Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical" H 3700 6150 50  0001 C CNN
354 | F 3 "~" H 3700 6150 50  0001 C CNN
355 | 	1    3700 6150
356 | 	0    -1   -1   0   
357 | $EndComp
358 | $Comp
359 | L power:+3.3V #PWR0115
360 | U 1 1 60097848
361 | P 4050 6450
362 | F 0 "#PWR0115" H 4050 6300 50  0001 C CNN
363 | F 1 "+3.3V" H 4065 6623 50  0000 C CNN
364 | F 2 "" H 4050 6450 50  0001 C CNN
365 | F 3 "" H 4050 6450 50  0001 C CNN
366 | 	1    4050 6450
367 | 	-1   0    0    1   
368 | $EndComp
369 | $Comp
370 | L power:GND #PWR0116
371 | U 1 1 60098F93
372 | P 3800 6350
373 | F 0 "#PWR0116" H 3800 6100 50  0001 C CNN
374 | F 1 "GND" H 3805 6177 50  0000 C CNN
375 | F 2 "" H 3800 6350 50  0001 C CNN
376 | F 3 "" H 3800 6350 50  0001 C CNN
377 | 	1    3800 6350
378 | 	1    0    0    -1  
379 | $EndComp
380 | Wire Wire Line
381 | 	3900 6350 4050 6350
382 | Wire Wire Line
383 | 	4050 6350 4050 6450
384 | Text Label 3700 6350 3    50   ~ 0
385 | SCL
386 | Text Label 3600 6350 3    50   ~ 0
387 | SDA
388 | NoConn ~ 6900 2550
389 | NoConn ~ 6900 2650
390 | NoConn ~ 8350 4000
391 | NoConn ~ 8350 4300
392 | NoConn ~ 8350 4400
393 | NoConn ~ 8350 4500
394 | NoConn ~ 8350 4600
395 | NoConn ~ 8350 4700
396 | NoConn ~ 9550 4600
397 | NoConn ~ 9550 3800
398 | $Comp
399 | L Connector:USB_C_Receptacle_USB2.0 J1
400 | U 1 1 600ACD7F
401 | P 2750 2850
402 | F 0 "J1" H 2857 3717 50  0000 C CNN
403 | F 1 "USB_C_Receptacle_USB2.0" H 2857 3626 50  0000 C CNN
404 | F 2 "Connector_USB:USB_C_Receptacle_GCT_USB4085" H 2900 2850 50  0001 C CNN
405 | F 3 "https://www.usb.org/sites/default/files/documents/usb_type-c.zip" H 2900 2850 50  0001 C CNN
406 | 	1    2750 2850
407 | 	1    0    0    -1  
408 | $EndComp
409 | $Comp
410 | L power:GND #PWR0117
411 | U 1 1 600AF0B5
412 | P 2750 3750
413 | F 0 "#PWR0117" H 2750 3500 50  0001 C CNN
414 | F 1 "GND" H 2755 3577 50  0000 C CNN
415 | F 2 "" H 2750 3750 50  0001 C CNN
416 | F 3 "" H 2750 3750 50  0001 C CNN
417 | 	1    2750 3750
418 | 	1    0    0    -1  
419 | $EndComp
420 | Wire Wire Line
421 | 	2450 3750 2750 3750
422 | Connection ~ 2750 3750
423 | Text Label 3350 3050 0    50   ~ 0
424 | D+
425 | Text Label 3350 2950 0    50   ~ 0
426 | D+
427 | Text Label 3350 2850 0    50   ~ 0
428 | D-
429 | Text Label 3350 2750 0    50   ~ 0
430 | D-
431 | $Comp
432 | L power:+5V #PWR0118
433 | U 1 1 600B10F4
434 | P 3350 2250
435 | F 0 "#PWR0118" H 3350 2100 50  0001 C CNN
436 | F 1 "+5V" H 3365 2423 50  0000 C CNN
437 | F 2 "" H 3350 2250 50  0001 C CNN
438 | F 3 "" H 3350 2250 50  0001 C CNN
439 | 	1    3350 2250
440 | 	1    0    0    -1  
441 | $EndComp
442 | NoConn ~ 3350 3350
443 | NoConn ~ 3350 3450
444 | $Comp
445 | L Mechanical:MountingHole H1
446 | U 1 1 600B95C9
447 | P 3850 950
448 | F 0 "H1" H 3950 996 50  0000 L CNN
449 | F 1 "MountingHole" H 3950 905 50  0000 L CNN
450 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 3850 950 50  0001 C CNN
451 | F 3 "~" H 3850 950 50  0001 C CNN
452 | 	1    3850 950 
453 | 	1    0    0    -1  
454 | $EndComp
455 | $Comp
456 | L Mechanical:MountingHole H2
457 | U 1 1 600B9C28
458 | P 4700 950
459 | F 0 "H2" H 4800 996 50  0000 L CNN
460 | F 1 "MountingHole" H 4800 905 50  0000 L CNN
461 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 4700 950 50  0001 C CNN
462 | F 3 "~" H 4700 950 50  0001 C CNN
463 | 	1    4700 950 
464 | 	1    0    0    -1  
465 | $EndComp
466 | $Comp
467 | L Mechanical:MountingHole H3
468 | U 1 1 600BA0A1
469 | P 5450 950
470 | F 0 "H3" H 5550 996 50  0000 L CNN
471 | F 1 "MountingHole" H 5550 905 50  0000 L CNN
472 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 5450 950 50  0001 C CNN
473 | F 3 "~" H 5450 950 50  0001 C CNN
474 | 	1    5450 950 
475 | 	1    0    0    -1  
476 | $EndComp
477 | $Comp
478 | L Mechanical:MountingHole H4
479 | U 1 1 600BA5D5
480 | P 6300 950
481 | F 0 "H4" H 6400 996 50  0000 L CNN
482 | F 1 "MountingHole" H 6400 905 50  0000 L CNN
483 | F 2 "MountingHole:MountingHole_2.5mm_Pad_Via" H 6300 950 50  0001 C CNN
484 | F 3 "~" H 6300 950 50  0001 C CNN
485 | 	1    6300 950 
486 | 	1    0    0    -1  
487 | $EndComp
488 | $Comp
489 | L Device:R R2
490 | U 1 1 600BB1DB
491 | P 10450 4850
492 | F 0 "R2" H 10520 4896 50  0000 L CNN
493 | F 1 "10k" H 10520 4805 50  0000 L CNN
494 | F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 10380 4850 50  0001 C CNN
495 | F 3 "~" H 10450 4850 50  0001 C CNN
496 | 	1    10450 4850
497 | 	1    0    0    -1  
498 | $EndComp
499 | Wire Wire Line
500 | 	10450 4700 10450 4500
501 | Connection ~ 10450 4500
502 | $Comp
503 | L power:GND #PWR0119
504 | U 1 1 600BC8F7
505 | P 10450 5000
506 | F 0 "#PWR0119" H 10450 4750 50  0001 C CNN
507 | F 1 "GND" H 10455 4827 50  0000 C CNN
508 | F 2 "" H 10450 5000 50  0001 C CNN
509 | F 3 "" H 10450 5000 50  0001 C CNN
510 | 	1    10450 5000
511 | 	1    0    0    -1  
512 | $EndComp
513 | Wire Wire Line
514 | 	5200 6300 5050 6300
515 | NoConn ~ 8350 4200
516 | $Comp
517 | L power:GND #PWR0120
518 | U 1 1 600F9C99
519 | P 5100 6950
520 | F 0 "#PWR0120" H 5100 6700 50  0001 C CNN
521 | F 1 "GND" H 5105 6777 50  0000 C CNN
522 | F 2 "" H 5100 6950 50  0001 C CNN
523 | F 3 "" H 5100 6950 50  0001 C CNN
524 | 	1    5100 6950
525 | 	1    0    0    -1  
526 | $EndComp
527 | Text Label 5450 6950 3    50   ~ 0
528 | SDA
529 | Text Label 5550 6950 3    50   ~ 0
530 | SCL
531 | Wire Wire Line
532 | 	5250 6950 5100 6950
533 | $Comp
534 | L Connector_Generic:Conn_01x04 J3
535 | U 1 1 600889C9
536 | P 5300 6100
537 | F 0 "J3" V 5264 5812 50  0000 R CNN
538 | F 1 "I2C 3.3v" V 5173 5812 50  0000 R CNN
539 | F 2 "Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical" H 5300 6100 50  0001 C CNN
540 | F 3 "~" H 5300 6100 50  0001 C CNN
541 | 	1    5300 6100
542 | 	0    -1   -1   0   
543 | $EndComp
544 | $Comp
545 | L Connector_Generic:Conn_01x04 J4
546 | U 1 1 600F9C93
547 | P 5350 6750
548 | F 0 "J4" V 5314 6462 50  0000 R CNN
549 | F 1 "I2C 5v" V 5223 6462 50  0000 R CNN
550 | F 2 "Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical" H 5350 6750 50  0001 C CNN
551 | F 3 "~" H 5350 6750 50  0001 C CNN
552 | 	1    5350 6750
553 | 	0    -1   -1   0   
554 | $EndComp
555 | $Comp
556 | L power:+5V #PWR0121
557 | U 1 1 602F3278
558 | P 5350 6950
559 | F 0 "#PWR0121" H 5350 6800 50  0001 C CNN
560 | F 1 "+5V" H 5365 7123 50  0000 C CNN
561 | F 2 "" H 5350 6950 50  0001 C CNN
562 | F 3 "" H 5350 6950 50  0001 C CNN
563 | 	1    5350 6950
564 | 	-1   0    0    1   
565 | $EndComp
566 | Wire Wire Line
567 | 	10000 3700 9550 3700
568 | Wire Wire Line
569 | 	10000 3700 10000 5850
570 | Wire Wire Line
571 | 	9850 4000 9850 3900
572 | Wire Wire Line
573 | 	9850 3900 9550 3900
574 | Wire Wire Line
575 | 	9550 4200 9750 4200
576 | Wire Wire Line
577 | 	9750 4200 9750 5250
578 | Wire Wire Line
579 | 	9750 5250 6500 5250
580 | Wire Wire Line
581 | 	6500 5250 6500 4600
582 | Wire Wire Line
583 | 	6500 4600 6250 4600
584 | Wire Wire Line
585 | 	9550 4300 10250 4300
586 | Wire Wire Line
587 | 	10250 4300 10250 2900
588 | Wire Wire Line
589 | 	7550 2900 10250 2900
590 | Wire Wire Line
591 | 	9550 4400 9700 4400
592 | Wire Wire Line
593 | 	9700 4400 9700 5000
594 | Wire Wire Line
595 | 	9700 5000 6650 5000
596 | Wire Wire Line
597 | 	6650 5000 6650 4500
598 | Wire Wire Line
599 | 	6650 4500 6250 4500
600 | Wire Wire Line
601 | 	9550 4500 10450 4500
602 | Wire Wire Line
603 | 	8350 3800 7850 3800
604 | Wire Wire Line
605 | 	7850 3800 7850 3400
606 | Wire Wire Line
607 | 	7850 3400 8950 3400
608 | Connection ~ 8950 3400
609 | $Comp
610 | L Device:R R3
611 | U 1 1 60483EC3
612 | P 2050 5000
613 | F 0 "R3" H 2120 5046 50  0000 L CNN
614 | F 1 "5.1k" H 2120 4955 50  0000 L CNN
615 | F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 1980 5000 50  0001 C CNN
616 | F 3 "~" H 2050 5000 50  0001 C CNN
617 | 	1    2050 5000
618 | 	1    0    0    -1  
619 | $EndComp
620 | $Comp
621 | L Device:R R4
622 | U 1 1 60484D3B
623 | P 2450 5000
624 | F 0 "R4" H 2520 5046 50  0000 L CNN
625 | F 1 "5.1k" H 2520 4955 50  0000 L CNN
626 | F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 2380 5000 50  0001 C CNN
627 | F 3 "~" H 2450 5000 50  0001 C CNN
628 | 	1    2450 5000
629 | 	1    0    0    -1  
630 | $EndComp
631 | $Comp
632 | L power:GND #PWR0122
633 | U 1 1 604854A3
634 | P 2450 5150
635 | F 0 "#PWR0122" H 2450 4900 50  0001 C CNN
636 | F 1 "GND" H 2455 4977 50  0000 C CNN
637 | F 2 "" H 2450 5150 50  0001 C CNN
638 | F 3 "" H 2450 5150 50  0001 C CNN
639 | 	1    2450 5150
640 | 	1    0    0    -1  
641 | $EndComp
642 | $Comp
643 | L power:GND #PWR0123
644 | U 1 1 604859C1
645 | P 2050 5150
646 | F 0 "#PWR0123" H 2050 4900 50  0001 C CNN
647 | F 1 "GND" H 2055 4977 50  0000 C CNN
648 | F 2 "" H 2050 5150 50  0001 C CNN
649 | F 3 "" H 2050 5150 50  0001 C CNN
650 | 	1    2050 5150
651 | 	1    0    0    -1  
652 | $EndComp
653 | Text Label 3350 2450 0    50   ~ 0
654 | CC1
655 | Text Label 3350 2550 0    50   ~ 0
656 | CC2
657 | Text Label 2050 4850 0    50   ~ 0
658 | CC1
659 | Text Label 2450 4850 0    50   ~ 0
660 | CC2
661 | $EndSCHEMATC
662 | 


--------------------------------------------------------------------------------
/pcb/sym-lib-table:
--------------------------------------------------------------------------------
1 | (sym_lib_table
2 |   (lib (name pm_25)(type Legacy)(uri ${KIPRJMOD}/pm_25.lib)(options "")(descr ""))
3 |   (lib (name pm_25-rescue)(type Legacy)(uri ${KIPRJMOD}/pm_25-rescue.lib)(options "")(descr ""))
4 | )
5 | 


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/pics/grafana.png:
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https://raw.githubusercontent.com/tenderlove/esp8266aq/5ca31ca405a7e9a1147211a9ad832bb626f9f6b2/pics/grafana.png


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/pics/project-small.jpeg:
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https://raw.githubusercontent.com/tenderlove/esp8266aq/5ca31ca405a7e9a1147211a9ad832bb626f9f6b2/pics/project-small.jpeg


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/pics/project.jpeg:
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https://raw.githubusercontent.com/tenderlove/esp8266aq/5ca31ca405a7e9a1147211a9ad832bb626f9f6b2/pics/project.jpeg


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