├── 5 inch v1.1.PNG ├── Arduino-LDMOS-SSPA-Controller-v1.5.ino ├── Corrected - Schemetic LDMOS-SSPA-Controller-v1.3.png ├── LICENSE ├── PCB ├── ldmos_controller_v1.6.1.zip └── readme ├── Parts-List.txt ├── README.md ├── S21RC nextion ldmos controller.PNG ├── Schemetic for PCB V1.3 S21RC Drawn by DF1JM.pdf ├── connectivity-diagram-1.1.png ├── controller 35 Basic NX4832T035 v1.1.tft ├── controller 35 discovery v1.1.tft ├── controller 5 inch BASIC NX8048T050 v1.1.tft ├── controller 5 inch Enhanced NX8048K050 v1.1.tft ├── display_mock.PNG ├── nextion variables.PNG ├── parts layout.png └── pcb v1.1.png /5 inch v1.1.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/5 inch v1.1.PNG -------------------------------------------------------------------------------- /Arduino-LDMOS-SSPA-Controller-v1.5.ino: -------------------------------------------------------------------------------- 1 | /* 2 | Arduino Code (Version 1.5) for S21RC LDMOS Controller V1.1. This board is tested with DXWORLD-E protection board, DXWORLD-E LPF Board. Any LDMOS SSPA system with similar IO should work. 3 | Display artwork courtesy of Head.n.Hand http://www.redbubble.com/people/limon 4 | 5 | Created by Fazlay Rabby S21RC, July, 2022. 6 | Released into the public domain. 7 | 8 | Feel free to use/change the Gerber file for the PCB, TFT display file for the display and all codes here. 9 | If you use any of the above - I will feel proud if you share your work in social media and tag/hashtag me to let me know #s21rc fb.me/s21rc 10 | 11 | If you need any clarification or help drop me an email, I am ok in qrz database. 12 | */ 13 | 14 | /* For PCB Version 1.1, CODE V 1.5 15 | * NOTE: V1.1 PCB has a small mistake, please swap pin A6 and A5 on the PCB by cutting the trace and using small wire. As A6 can not be used as digital communication 16 | */ 17 | 18 | /* V1.5: Bug fixed for disabling touch when transmitting */ 19 | 20 | #include 21 | #include 22 | #include //https://github.com/milesburton/Arduino-Temperature-Control-Library 23 | #include "math.h" 24 | #include "EasyNextionLibrary.h" // https://github.com/Seithan/EasyNextionLibrary 25 | 26 | 27 | /* ======= Arduino NANO PIN assignment ======== */ 28 | // NOTE: V1.1 PCB has a small mistake, please swap pin A6 and A5 on the PCB by cutting the trace and using small wire. As A6 can not be used as digital communication 29 | 30 | #define ROTARY_POS A7 31 | #define PWR_FWD A2 32 | #define PWR_REF A1 33 | #define ID A6 34 | #define LED_PO 3 35 | #define LED_I 2 36 | #define VCC A0 37 | #define LED_SWR 4 38 | #define BIAS_OFF 17 // D17/A3 connected to pin 5 of LM2596HVS bias regulator, or else put R1, Q15, D8 and use a 12v relay for BIAS OFF, use NC pins for 12v bias supply [R9 not used] 39 | #define PTT 18 // D18/A4 40 | #define band1 5 41 | #define band2 6 42 | #define band3 7 43 | #define band4 8 44 | #define band5 11 45 | #define band6 12 46 | #define band7 13 47 | #define antenna2 10 //Antenna 2 relay pin of arduino 48 | 49 | 50 | /* ======= Nextion Display ======== 51 | 52 | Below are the variables inside the nextion HMI display 53 | Please see screenshot to understand better. 54 | 55 | a1 : Antenna 2 switch (Dual state button) 56 | r1 : Rotary enable (Dual state button/Touch Disabled) 57 | b1 : Band 1 (Dual state button) 58 | b2 : Band 2 (Dual state button) 59 | b3 : Band 3 (Dual state button) 60 | b4 : Band 4 (Dual state button) 61 | b5 : Band 5 (Dual state button) 62 | b6 : Band 6 (Dual state button) 63 | b7 : Band 7 (Dual state button) 64 | 65 | e1: On Air indicator (Dual state button/Touch Disabled) 66 | e2: Over current indicator (Dual state button/Touch Disabled) 67 | e3: High SWR indicator (Dual state button/Touch Disabled) 68 | e4: High Tempo indicator (Dual state button/Touch Disabled) 69 | e5: Over power indicator (Dual state button/Touch Disabled) 70 | 71 | op: place to display owner callsign (Text, 7 char max) 72 | Cw: (Number) 73 | Cs: (Xfloat) 74 | Ct: (Number) 75 | 76 | Gw: watt bar (Progress bar) 77 | Gs: SWR bar (Progress bar) 78 | Gt: Temp bar (Progress bar) 79 | 80 | Cv: Voltage (Xfloat) 81 | Ca: Current (Xfloat) 82 | Cb: Current band (Number) 83 | Fs: Fan status (Text) 84 | 85 | Remove UART when Arduino is connected to computer for programming, as they use same RX/TX port. 86 | 87 | */ 88 | 89 | 90 | 91 | EasyNex myNex(Serial); 92 | 93 | /* ======= Tempareture ======== */ 94 | #define ONE_WIRE_BUS 19 95 | OneWire oneWire(ONE_WIRE_BUS); 96 | DallasTemperature sensors(&oneWire); 97 | DeviceAddress tempDeviceAddress; 98 | int resolution = 9; 99 | unsigned long lastTempRequest = 0; 100 | int delayInMillis = 0; 101 | float temperature = 0.0; 102 | 103 | /* ======= PWM FAN ======== */ 104 | const byte OC1A_PIN = 9; 105 | //const byte OC1B_PIN = 10; 106 | const word PWM_FREQ_HZ = 31000; //Set currently to 31kHZ for Dalas 12V 4 wire Fan 107 | const word TCNT1_TOP = 16000000/(2*PWM_FREQ_HZ); 108 | 109 | 110 | 111 | /* USER DEFINED VARIABLES, PUT AS PER YOUR BOARD */ 112 | 113 | int graph_maxWatt = 600; //Scale from 0 to 600, set as per your SSPA board 114 | int graph_maxTemp = 55; //Scale from 0 to 55, set as per your PA board. 115 | int graph_maxSwr = 2; // Scale of the SWR for display 116 | int VdelayInMillis = 1000; // refresh V display every N mili sec, set as per your liking 117 | int IdelayInMillis = 100; // refresh I display every N mili sec, set as per your liking 118 | float Res_1=150000.00; //Set R1 of voltage devider (VR VM pot, center to VDD) (you can use 150K 1% tol resistor) 119 | float Res_2=10000.00 ; //Set R2 of voltage devider (VR VM pot, center to GND) (you can use 10K 1% tol resistor) 120 | // Calibration factors for SWR/PO 121 | int calibrP = 58; // Assume 3.3v = 1000w in 50R. CalibrP = (3.3 / 5.0 x 1024 + Vdiode)x(3.3 / 5.0 x 1024 + Vdiode) / 1000w 122 | int Vdiode = 60; // if we assume FWD voltage diode = 0,3v : Vdiode = 0,3 v / 5.0 v x 1024 123 | int T_pepHOLD = 600; // msec pep hold time before return 124 | 125 | 126 | /* ======== Other variables ======== */ 127 | bool touch_status = true; 128 | bool PTT_status = false; 129 | bool error_i_status = false; 130 | bool error_swr_status = false; 131 | bool error_po_status = false; 132 | bool error_temp_status = false; 133 | bool antenna2_status = false; 134 | 135 | 136 | 137 | int current_band = 0; 138 | int band_pos =0; 139 | int temp_heatsink =0; 140 | 141 | unsigned long lastVRequest =0; 142 | unsigned long lastIRequest =0; 143 | 144 | float Vin=0.00; 145 | float Vout=0.00; 146 | 147 | int graph_Watt = 0; 148 | int graph_Temp = 0; 149 | int graph_Swr = 0; 150 | 151 | /* ======== power and swr related variable ======== */ 152 | 153 | long lastTpep = 0; // update PEP display 154 | 155 | 156 | unsigned long power_fwd = 0; // power forward (watts) 157 | unsigned long power_ref = 0; // power reflected (watts) 158 | unsigned int power_fwd_max = 0; // power forward max (for peak hold) 159 | unsigned int power_ref_max = 0; // power reflected max (for peak hold) 160 | 161 | float SWR = 0; // SWR 162 | float power_ratio = 0; // Power ratio P forward / P refl 163 | int swr_display = 0; // swr x 10 showing in display 164 | 165 | 166 | /* === PWM Function === */ 167 | void setPwmDuty(byte duty){ 168 | OCR1A = (word) (duty*TCNT1_TOP)/100; 169 | } 170 | 171 | /* === Volt meter Function === */ 172 | void read_volt(){ 173 | float vcc; 174 | int v1_val=0; 175 | int V = 0; 176 | v1_val = analogRead(VCC); 177 | Vout = (v1_val * 5.00) / 1024.00; 178 | Vin = Vout / (Res_2/(Res_1+Res_2)); 179 | V = ((Vin * 10)+ 0.5); 180 | 181 | if (millis() - lastVRequest >= VdelayInMillis) 182 | { 183 | myNex.writeNum("Cv.val", V); 184 | lastVRequest = millis(); 185 | } 186 | } 187 | 188 | /* === SWR/Po calculation Function === */ 189 | void read_power(){ 190 | power_fwd = analogRead(PWR_FWD); 191 | power_ref = analogRead(PWR_REF); 192 | 193 | if (power_fwd > 5){ // only correct for diode voltage when more than zero 194 | power_fwd = (power_fwd + Vdiode)*(power_fwd + Vdiode) / calibrP; 195 | } 196 | 197 | if (power_ref > 5){ // only correct for diode voltage when more than zero 198 | power_ref = (power_ref + Vdiode)*(power_ref + Vdiode) / calibrP; 199 | } 200 | 201 | // detect SWR error / load mismatch 202 | power_ratio = power_fwd / power_ref; // calculate ratio with raw data 203 | SWR = abs ((1+sqrt(power_ratio)) / (1-sqrt(power_ratio))) ; 204 | 205 | // hold peak 206 | 207 | if (power_fwd >= power_fwd_max){ 208 | lastTpep = millis(); 209 | power_fwd_max = power_fwd; 210 | } 211 | 212 | if(millis() > (lastTpep + T_pepHOLD)){ // clear the peak after hold time 213 | power_fwd_max = power_fwd; 214 | } 215 | 216 | 217 | swr_display = (SWR * 10) + 0.5; // Float x 10 and convert to int with rounding 218 | 219 | if (swr_display < 10){ // SWR cannot be lower than 1.0 220 | swr_display = 10 ; 221 | } 222 | 223 | //power_fwd_max is power output 224 | // swr_display: swr value x 10 225 | } 226 | 227 | /* === SWR/Po display Function === */ 228 | void display_power(){ 229 | // power_fwd_max = 432; //Test value ********************************* 230 | 231 | myNex.writeNum("Cw.val", power_fwd_max); 232 | 233 | float graph_limit_watt = (graph_maxWatt/100.00); 234 | graph_Watt = (power_fwd_max / graph_limit_watt); 235 | // graph_Watt = 80; //Test value *************************** 236 | // swr_display = 15; //Test value *************************** 237 | myNex.writeNum("Gw.val", graph_Watt); 238 | myNex.writeNum("Cs.val", swr_display); 239 | 240 | float graph_limit_swr = ((graph_maxSwr-1)/100.00); 241 | graph_Swr = ((swr_display/10)-1) / (graph_limit_swr); // calculate from 1 to max swr. 242 | //graph_Swr = 15; //Test value ******************************* 243 | myNex.writeNum("Gs.val", graph_Swr); 244 | 245 | } 246 | 247 | /* =========== Send band info to LCD ====================== */ 248 | 249 | void display_band(int Nband){ 250 | 251 | myNex.writeNum("Cb.val", Nband); 252 | switch (Nband) { 253 | case 1: 254 | myNex.writeNum("b1.val", 1); 255 | myNex.writeNum("b2.val", 0); 256 | myNex.writeNum("b3.val", 0); 257 | myNex.writeNum("b4.val", 0); 258 | myNex.writeNum("b5.val", 0); 259 | myNex.writeNum("b6.val", 0); 260 | myNex.writeNum("b7.val", 0); 261 | break; 262 | case 2: 263 | myNex.writeNum("b1.val", 0); 264 | myNex.writeNum("b2.val", 1); 265 | myNex.writeNum("b3.val", 0); 266 | myNex.writeNum("b4.val", 0); 267 | myNex.writeNum("b5.val", 0); 268 | myNex.writeNum("b6.val", 0); 269 | myNex.writeNum("b7.val", 0); 270 | break; 271 | case 3: 272 | myNex.writeNum("b1.val", 0); 273 | myNex.writeNum("b2.val", 0); 274 | myNex.writeNum("b3.val", 1); 275 | myNex.writeNum("b4.val", 0); 276 | myNex.writeNum("b5.val", 0); 277 | myNex.writeNum("b6.val", 0); 278 | myNex.writeNum("b7.val", 0); 279 | break; 280 | case 4: 281 | myNex.writeNum("b1.val", 0); 282 | myNex.writeNum("b2.val", 0); 283 | myNex.writeNum("b3.val", 0); 284 | myNex.writeNum("b4.val", 1); 285 | myNex.writeNum("b5.val", 0); 286 | myNex.writeNum("b6.val", 0); 287 | myNex.writeNum("b7.val", 0); 288 | break; 289 | case 5: 290 | myNex.writeNum("b1.val", 0); 291 | myNex.writeNum("b2.val", 0); 292 | myNex.writeNum("b3.val", 0); 293 | myNex.writeNum("b4.val", 0); 294 | myNex.writeNum("b5.val", 1); 295 | myNex.writeNum("b6.val", 0); 296 | myNex.writeNum("b7.val", 0); 297 | break; 298 | case 6: 299 | myNex.writeNum("b1.val", 0); 300 | myNex.writeNum("b2.val", 0); 301 | myNex.writeNum("b3.val", 0); 302 | myNex.writeNum("b4.val", 0); 303 | myNex.writeNum("b5.val", 0); 304 | myNex.writeNum("b6.val", 1); 305 | myNex.writeNum("b7.val", 0); 306 | break; 307 | case 7: 308 | myNex.writeNum("b1.val", 0); 309 | myNex.writeNum("b2.val", 0); 310 | myNex.writeNum("b3.val", 0); 311 | myNex.writeNum("b4.val", 0); 312 | myNex.writeNum("b5.val", 0); 313 | myNex.writeNum("b6.val", 0); 314 | myNex.writeNum("b7.val", 1); 315 | break; 316 | } 317 | } 318 | 319 | 320 | 321 | /* =========== LPF Relay control ====================== */ 322 | 323 | void lpf_relay(int Nrelay){ 324 | EEPROM.put(0, Nrelay); //Update/write band info to Memory 325 | switch (Nrelay){ 326 | case 0: 327 | digitalWrite(band1, LOW); 328 | digitalWrite(band2, LOW); 329 | digitalWrite(band3, LOW); 330 | digitalWrite(band4, LOW); 331 | digitalWrite(band5, LOW); 332 | digitalWrite(band6, LOW); 333 | digitalWrite(band7, LOW); 334 | break; 335 | case 1: 336 | digitalWrite(band1, HIGH); 337 | digitalWrite(band2, LOW); 338 | digitalWrite(band3, LOW); 339 | digitalWrite(band4, LOW); 340 | digitalWrite(band5, LOW); 341 | digitalWrite(band6, LOW); 342 | digitalWrite(band7, LOW); 343 | break; 344 | case 2: 345 | digitalWrite(band1, LOW); 346 | digitalWrite(band2, HIGH); 347 | digitalWrite(band3, LOW); 348 | digitalWrite(band4, LOW); 349 | digitalWrite(band5, LOW); 350 | digitalWrite(band6, LOW); 351 | digitalWrite(band7, LOW); 352 | break; 353 | case 3: 354 | digitalWrite(band1, LOW); 355 | digitalWrite(band2, LOW); 356 | digitalWrite(band3, HIGH); 357 | digitalWrite(band4, LOW); 358 | digitalWrite(band5, LOW); 359 | digitalWrite(band6, LOW); 360 | digitalWrite(band7, LOW); 361 | break; 362 | case 4: 363 | digitalWrite(band1, LOW); 364 | digitalWrite(band2, LOW); 365 | digitalWrite(band3, LOW); 366 | digitalWrite(band4, HIGH); 367 | digitalWrite(band5, LOW); 368 | digitalWrite(band6, LOW); 369 | digitalWrite(band7, LOW); 370 | break; 371 | case 5: 372 | digitalWrite(band1, LOW); 373 | digitalWrite(band2, LOW); 374 | digitalWrite(band3, LOW); 375 | digitalWrite(band4, LOW); 376 | digitalWrite(band5, HIGH); 377 | digitalWrite(band6, LOW); 378 | digitalWrite(band7, LOW); 379 | break; 380 | case 6: 381 | digitalWrite(band1, LOW); 382 | digitalWrite(band2, LOW); 383 | digitalWrite(band3, LOW); 384 | digitalWrite(band4, LOW); 385 | digitalWrite(band5, LOW); 386 | digitalWrite(band6, HIGH); 387 | digitalWrite(band7, LOW); 388 | break; 389 | case 7: 390 | digitalWrite(band1, LOW); 391 | digitalWrite(band2, LOW); 392 | digitalWrite(band3, LOW); 393 | digitalWrite(band4, LOW); 394 | digitalWrite(band5, LOW); 395 | digitalWrite(band6, LOW); 396 | digitalWrite(band7, HIGH); 397 | break; 398 | } 399 | 400 | current_band=Nrelay; 401 | display_band(Nrelay); 402 | } 403 | 404 | 405 | /* === Monitor and show PTT status on display === */ 406 | void onair(){ 407 | int PTT_en = digitalRead(PTT); 408 | 409 | if (PTT_en==0 && PTT_status != true){ 410 | PTT_status = HIGH; 411 | myNex.writeNum("e1.val", 1); 412 | LCDband_disable(); 413 | } 414 | 415 | else if(PTT_en==1 && PTT_status!= false){ 416 | myNex.writeNum("e1.val", 0); 417 | PTT_status = LOW; 418 | LCDband_enable(); 419 | } 420 | } 421 | 422 | /* === Monitor and show over current error on display === */ 423 | void error_i(){ 424 | int error_i_en = digitalRead(LED_I); 425 | //error_i_en = 0; //test 426 | if (error_i_en == LOW && error_i_status == false){ 427 | 428 | myNex.writeNum("e2.val", 1); 429 | error_i_status = true; 430 | } 431 | else if (error_i_en == HIGH && error_i_status == true){ 432 | 433 | myNex.writeNum("e2.val", 0); 434 | error_i_status = false; 435 | } 436 | } 437 | 438 | /* === Monitor and show over SWR error on display === */ 439 | void error_swr(){ 440 | int error_swr_en = digitalRead(LED_SWR); 441 | //error_swr_en = 0; //test 442 | if (error_swr_en==LOW && error_swr_status == false){ 443 | //hmiSend("e3.val=",1); 444 | myNex.writeNum("e3.val", 1); 445 | error_swr_status = true; 446 | } 447 | else if(error_swr_en==HIGH && error_swr_status == true){ 448 | //hmiSend("e3.val=",0); 449 | myNex.writeNum("e3.val", 0); 450 | error_swr_status = false; 451 | } 452 | } 453 | 454 | /* === Monitor and show over Power error on display === */ 455 | void error_po(){ 456 | int error_po_en = digitalRead(LED_PO); 457 | // error_po_en = 0; //test **************************************** 458 | if (error_po_en==LOW && error_po_status == false){ 459 | 460 | myNex.writeNum("e5.val", 1); 461 | error_po_status = true; 462 | } 463 | else if (error_po_en==HIGH && error_po_status == true){ 464 | //hmiSend("e5.val=",0); 465 | myNex.writeNum("e5.val", 0); 466 | error_po_status = false; 467 | } 468 | } 469 | 470 | /* === Over temp protection and show temp error=== */ 471 | void error_temp(bool highTemp){ 472 | if (error_temp_status == false && highTemp){ 473 | digitalWrite(BIAS_OFF, HIGH); // LM2596HVS PIN5 474 | myNex.writeNum("e4.val", 1); 475 | error_temp_status = true; 476 | } 477 | 478 | if (error_temp_status == true && !highTemp){ 479 | digitalWrite(BIAS_OFF, LOW); 480 | myNex.writeNum("e4.val", 0); 481 | error_temp_status = false; 482 | } 483 | 484 | } 485 | 486 | /* === Monitor current from protection board === */ 487 | void read_ID(){ 488 | int I; 489 | float Is; 490 | float Idv; 491 | float ref_vdd = (5.00/1024); 492 | 493 | Idv=( analogRead(ID) * ref_vdd ); 494 | Is = (Idv*13000); 495 | Is = (Is/4482); 496 | I = ((Is * 10)+ 0.5); 497 | // I = 123; //test value 498 | 499 | 500 | if (millis() - lastIRequest >= IdelayInMillis) 501 | { 502 | myNex.writeNum("Ca.val", I); 503 | lastIRequest = millis(); 504 | } 505 | 506 | } 507 | 508 | /* === Set FAN speed according to temp === */ 509 | void fanspeed(){ 510 | if(temperature>20.0 && temperature<40.0){ 511 | setPwmDuty(75); 512 | myNex.writeStr("Fs.txt", "LOW"); 513 | } 514 | else if(temperature>=40.0 && temperature<45.0){ 515 | setPwmDuty(50); 516 | myNex.writeStr("Fs.txt", "MID"); 517 | } 518 | else if(temperature>=45.0 && temperature<50.0){ 519 | setPwmDuty(25); 520 | myNex.writeStr("Fs.txt", "HIGH"); 521 | } 522 | else if(temperature>=50.0 && temperature<55.0 ){ 523 | setPwmDuty(0); 524 | myNex.writeStr("Fs.txt", "*HOT"); 525 | } 526 | 527 | } 528 | 529 | 530 | 531 | /* === Tempareturn Monitor === */ 532 | void read_temp(){ 533 | if (millis() - lastTempRequest >= delayInMillis) 534 | { 535 | temperature = sensors.getTempCByIndex(0); 536 | sensors.requestTemperatures(); 537 | lastTempRequest = millis(); 538 | } 539 | if(temperature>=(graph_maxTemp-1)){ 540 | 541 | error_temp(1); 542 | setPwmDuty(0); 543 | myNex.writeStr("Fs.txt", "ALRM"); 544 | } 545 | if(temperature<=(graph_maxTemp-5) && error_temp_status){ 546 | error_temp(0); 547 | 548 | } 549 | 550 | myNex.writeNum("Ct.val", temperature); 551 | float graph_limit = (graph_maxTemp/100.00); 552 | graph_Temp = (temperature / graph_limit); 553 | myNex.writeNum("Gt.val", graph_Temp); 554 | fanspeed(); 555 | } 556 | 557 | 558 | /* === Enabling touch functions of Display === */ 559 | void LCDband_enable(){ 560 | if(touch_status != true){ 561 | myNex.writeStr("tsw b1,1"); 562 | myNex.writeStr("tsw b2,1"); 563 | myNex.writeStr("tsw b3,1"); 564 | myNex.writeStr("tsw b4,1"); 565 | myNex.writeStr("tsw b5,1"); 566 | myNex.writeStr("tsw b6,1"); 567 | myNex.writeStr("tsw b7,1"); 568 | myNex.writeStr("tsw a1,1"); 569 | touch_status = true; 570 | } 571 | } 572 | 573 | /* === Disabling touch functions of Display === */ 574 | void LCDband_disable(){ 575 | if(touch_status != false){ 576 | myNex.writeStr("tsw 255,0"); 577 | touch_status = false; 578 | } 579 | } 580 | 581 | 582 | 583 | 584 | /* === Rotary band switch === */ 585 | 586 | int band_switch(){ 587 | int band_select; 588 | //read rotary value 589 | int band_value = analogRead(ROTARY_POS); 590 | 591 | if (band_value <=100){ 592 | myNex.writeStr("r1.val=0"); 593 | if (PTT_status != HIGH) LCDband_enable(); 594 | band_select = current_band; 595 | } 596 | else if (band_value>=101&& band_value <=200){ 597 | myNex.writeStr("r1.val=1"); 598 | LCDband_disable(); 599 | band_select=1; 600 | } 601 | else if (band_value>=201 && band_value <=350){ 602 | myNex.writeStr("r1.val=1"); 603 | LCDband_disable(); 604 | band_select=2; 605 | } 606 | else if (band_value>=351 && band_value <=500){ 607 | myNex.writeStr("r1.val=1"); 608 | LCDband_disable(); 609 | band_select=3; 610 | } 611 | else if (band_value>=501 && band_value <=650){ 612 | myNex.writeStr("r1.val=1"); 613 | LCDband_disable(); 614 | band_select=4; 615 | } 616 | else if (band_value>=651 && band_value <=800){ 617 | myNex.writeStr("r1.val=1"); 618 | LCDband_disable(); 619 | band_select=5; 620 | } 621 | else if (band_value>=801 && band_value <=950){ 622 | myNex.writeStr("r1.val=1"); 623 | LCDband_disable(); 624 | band_select=6; 625 | } 626 | else if (band_value>=951 && band_value <=1024){ 627 | myNex.writeStr("r1.val=1"); 628 | LCDband_disable(); 629 | band_select=7; 630 | } 631 | else {} 632 | return band_select; 633 | } 634 | 635 | 636 | void band_position(){ 637 | band_pos = band_switch(); 638 | if (current_band != band_pos && PTT_status != HIGH ){ 639 | lpf_relay(band_pos); 640 | } 641 | } 642 | 643 | void band_position_touch(){ 644 | if (current_band != band_pos && PTT_status != HIGH){ 645 | lpf_relay(band_pos); 646 | } 647 | } 648 | 649 | /* === Trigger from Nextion Display === */ 650 | void trigger1(){ 651 | band_pos = 1; 652 | band_position_touch(); 653 | } 654 | 655 | void trigger2(){ 656 | band_pos = 2; 657 | band_position_touch(); 658 | } 659 | 660 | void trigger3(){ 661 | band_pos = 3; 662 | band_position_touch(); 663 | } 664 | 665 | void trigger4(){ 666 | band_pos = 4; 667 | band_position_touch(); 668 | } 669 | 670 | void trigger5(){ 671 | band_pos = 5; 672 | band_position_touch(); 673 | } 674 | 675 | void trigger6(){ 676 | band_pos = 6; 677 | band_position_touch(); 678 | } 679 | 680 | void trigger7(){ 681 | band_pos = 7; 682 | band_position_touch(); 683 | } 684 | 685 | //Antenna2 switch 686 | void trigger8(){ 687 | if (antenna2_status == LOW){ 688 | digitalWrite(antenna2, HIGH); 689 | myNex.writeNum("a1.val", 1); 690 | antenna2_status = HIGH; 691 | } 692 | else { 693 | digitalWrite(antenna2, LOW); 694 | myNex.writeNum("a1.val", 0); 695 | antenna2_status = LOW; 696 | } 697 | 698 | } 699 | 700 | 701 | void setup() { 702 | delay (1000); //wait for display initialization 703 | myNex.begin(); // start Nextion Display 704 | myNex.writeStr("op.txt", "AB12CD"); //Write your callsign here 705 | 706 | /* === FAN PWM setup === */ 707 | pinMode(OC1A_PIN, OUTPUT); //fan pwm 708 | 709 | // Clear Timer1 control and count registers 710 | TCCR1A = 0; 711 | TCCR1B = 0; 712 | TCNT1 = 0; 713 | 714 | // Set Timer1 configuration 715 | // COM1A(1:0) = 0b10 (Output A clear rising/set falling) 716 | // COM1B(1:0) = 0b00 (Output B normal operation) 717 | // WGM(13:10) = 0b1010 (Phase correct PWM) 718 | // ICNC1 = 0b0 (Input capture noise canceler disabled) 719 | // ICES1 = 0b0 (Input capture edge select disabled) 720 | // CS(12:10) = 0b001 (Input clock select = clock/1) 721 | 722 | TCCR1A |= (1 << COM1A1) | (1 << WGM11); 723 | TCCR1B |= (1 << WGM13) | (1 << CS10); 724 | ICR1 = TCNT1_TOP; 725 | 726 | 727 | /* ==== Temp sensor setup ==== */ 728 | sensors.begin(); //Temp sensor 729 | sensors.getAddress(tempDeviceAddress, 0); 730 | sensors.setResolution(tempDeviceAddress, resolution); 731 | sensors.setWaitForConversion(false); 732 | sensors.requestTemperatures(); 733 | delayInMillis = 750 / (1 << (12 - resolution)); 734 | lastTempRequest = millis(); 735 | 736 | 737 | pinMode(band1, OUTPUT); 738 | pinMode(band2, OUTPUT); 739 | pinMode(band3, OUTPUT); 740 | pinMode(band4, OUTPUT); 741 | pinMode(band5, OUTPUT); 742 | pinMode(band6, OUTPUT); 743 | pinMode(band7, OUTPUT); 744 | pinMode(BIAS_OFF, OUTPUT); 745 | 746 | pinMode(PTT, INPUT_PULLUP); 747 | pinMode(LED_PO, INPUT); 748 | pinMode(LED_I, INPUT); 749 | pinMode(LED_SWR, INPUT); 750 | pinMode(VCC, INPUT); 751 | 752 | EEPROM.get(0, current_band); // Load last band position to current_band variable from memory location 0 753 | lpf_relay(current_band); 754 | display_band(current_band); 755 | } 756 | 757 | void loop() { 758 | if (PTT_status != HIGH) myNex.NextionListen(); 759 | band_position(); //LPF Band position 760 | onair(); //Check PTT status 761 | read_volt(); // Read V 762 | read_ID(); //Read I 763 | read_power(); //Read Po and SWR 764 | display_power(); // Display power 765 | read_temp(); // Read Temp 766 | error_i(); // Check Error: I 767 | error_swr(); // Check Error: SWR 768 | error_po(); // Check Error: Po 769 | } 770 | -------------------------------------------------------------------------------- /Corrected - Schemetic LDMOS-SSPA-Controller-v1.3.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/Corrected - Schemetic LDMOS-SSPA-Controller-v1.3.png -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /PCB/ldmos_controller_v1.6.1.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/PCB/ldmos_controller_v1.6.1.zip -------------------------------------------------------------------------------- /PCB/readme: -------------------------------------------------------------------------------- 1 | PCB V1.6.1 is compatible with following software: 2 | Code V1.x 3 | Code V2.0.x 4 | Code V2.1.x 5 | -------------------------------------------------------------------------------- /Parts-List.txt: -------------------------------------------------------------------------------- 1 | R1, R2: 1K 2 | R3-4: 10K 3 | R5-7: 10R 4 | R8: 4K7 5 | R9: optional/future function 6 | R10-12: 10K 7 | R13-19: 1K 8 | R21, 23, 25, 27, 29, 31, 33: 10K 9 | R20, 22, 24, 26, 28, 30, 32: 1K 10 | C1-3: 10uF/16V Electrolyte 11 | C4-5: 0.01uF ceramic 12 | IC1: 7805 13 | Q1-7: BC547 14 | Q8-14: BC557 15 | Q15: BC547 [optional, you can use it to drive relay for bias off.] 16 | D1-8: 1N4148/1N4001-7 or any general purposee diodes. 17 | Optocouplers: PC817 18 | VR RE, FW: 103 multiturn potentiometer 19 | VR Vm: use two resistor, 150K from VDD, 10K from Gnd (15:1 ratio or nearby, you need the value to put inside code, 1% tolarence is better) 20 | DC-DC buck module: LM2596HVS (Must be HVS, input voltage max 60v), !! ordinary LM2596 module will give you magic smoke. 21 | [If you have separate 12V PSU, then no need to use the DC-DC Buck module] !! module is up side down. GND IN/OUT pins are at top of the PCB. 22 | 23 | Temp Sensor: DS18B20 (buy the 3 pin package, fix it inside a cable lug, put it in heatsink or over LDMOS) 24 | Band Switch: 8 pole rotary band switch, use position 1: GND, position 8: VCC 5V, use 7x 1K Resistor between each pole. 25 | So it is a 8K resistor with different voltage in each tap. If you do not use Rotary switch, use a jumper to short the middle pin with gnd. 26 | Microcontroller: Ardiono Nano 27 | 28 | 29 | Header description: 30 | LPF(7): this will go to DXworld-e LPF board (or any LPF board where GND is common for relays) 31 | 50V (2): goes to main VDD 32 | 12v OUT (2): spare 12v out for running any other peripherals. 33 | PWM Fan (4): goes to 4 pin PWM. for 3 PIN PWM use the arduino digital pin 9, GND, PWM, Not used, 12V 34 | UART(4): GND-TX-RX-5V (goes to GND-RX-TX-5V of Nextion display) 35 | ERR(4): GND, LED1, LED2, LED3 (connects to the LED + pin of the DXWPORLD_E protection board - after using this the LED will not work anymore) 36 | BAND (3): Input-5V-GND: goes to band switch assembly (please see schematic) 37 | TEMP (3): GND-DATA-5V goes to DS18B20 IC 38 | I(A) (2): GND-Data goes to current monitor pin of DXWORLD-E protection board 39 | PTT (2): GND-IN, IN connects to 12V line of DXWORLD-e RX/TX board. or connect to same point where 12V for BIAS is present when PTT. 40 | SWR1: GND-REF-FWD goes to SWR monitor of DXWORLD-E protection board or to SWR bridge. (You should use the POT to make sure not more than 5V is present in the arduino input.) 41 | AUX: for driving an relay, can be used to cut BIAS off or for doing any other thing (code need to modify) 42 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | PLEASE TRY THE NEW VERSION OF THIS PROJECT: 2 | 3 | SOFTWARE CODE (Arduino and Nextion files): 4 | V2 CODES from: https://s21rc.net/s21rc-ldmos-sspa-controller-v2-0/ 5 | or 6 | V2.1.x Lite from: https://github.com/s21rc/ldmos_sspa_controller_v2.1_lite 7 | 8 | PCB GERBER: s21rc_ldmos_controller_v1.6.zip 9 | 10 | 11 | !! V1.x OLD VERSION - NO LONGER DEVELOPED!! 12 | 13 | 14 | TFT file for 5 inch display uploaded. 15 | ![5 inch Display](./5%20inch%20v1.1.PNG) 16 | 17 | 18 | V 1.5 19 | Bug fixed. Touch disabled when TX. 20 | 21 | V 1.4 22 | Arduino-LDMOS-SSPA-Controller-v1.4.ino 23 | Pin assignment corrected for PCB V1.1 24 | 25 | V 1.3 26 | Arduino-LDMOS-SSPA-Controller-v1.3.ino 27 | Arduino LDMOS SSPA controller with Nextion HMI display 28 | 29 | ![Display variables](./nextion%20variables.PNG) 30 | ![complete board](./pcb%20v1.1.png) 31 | 32 | ![Display variables](./display_mock.PNG) 33 | 34 | Features: 35 | * Arduino Nano [easy code to understand] 36 | * Max watt, max SWR, Max Temp for Bar graph settings can be changed in Arduino code. 37 | * Display Power output in bar graph and numeric 38 | * Display SWR in bar graph and numeric 39 | * Display Temp in bar graph and numeric 40 | * Display Band in Numeric, also band button shows current display. Touch button for band selection. 41 | * Antenna 2 selection (optional - currently no GPIO left) 42 | * Shows FAN speed (LOW/MID/HIGH/HOT/ALRM) 43 | * Band change by 8 pole rotary band switch (position 1 will enable touch switch). 44 | * No Band change when TX on, if you change band switch or select different band from touch - it will change when TX goes of. 45 | * PWM FAN control depends on temperature. 46 | * Temp sensor DS18B20 3 pin IC 47 | * Volt monitor. 48 | * Current monitor from DXWORLD-E protection board (BTS.....) 49 | * Shows SWR/High Po/High current LED status on LCD 50 | * Shows PTT status (on air) 51 | * Shutdown bias V at 54.9 Degree (you can set it) 52 | * Shows operator callsign on front display (change it inside Arduino code) 53 | * For touch band selection, band change memorize in eeprom, comes back same band after power on or reset. 54 | 55 | If you need any clarification or help raise a "issues" here in GIT, or drop me an email. 56 | 57 | Enjoy, 73, S21RC 58 | -------------------------------------------------------------------------------- /S21RC nextion ldmos controller.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/S21RC nextion ldmos controller.PNG -------------------------------------------------------------------------------- /Schemetic for PCB V1.3 S21RC Drawn by DF1JM.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/Schemetic for PCB V1.3 S21RC Drawn by DF1JM.pdf -------------------------------------------------------------------------------- /connectivity-diagram-1.1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/connectivity-diagram-1.1.png -------------------------------------------------------------------------------- /controller 35 Basic NX4832T035 v1.1.tft: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/controller 35 Basic NX4832T035 v1.1.tft -------------------------------------------------------------------------------- /controller 35 discovery v1.1.tft: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/controller 35 discovery v1.1.tft -------------------------------------------------------------------------------- /controller 5 inch BASIC NX8048T050 v1.1.tft: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/controller 5 inch BASIC NX8048T050 v1.1.tft -------------------------------------------------------------------------------- /controller 5 inch Enhanced NX8048K050 v1.1.tft: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/controller 5 inch Enhanced NX8048K050 v1.1.tft -------------------------------------------------------------------------------- /display_mock.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/display_mock.PNG -------------------------------------------------------------------------------- /nextion variables.PNG: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/nextion variables.PNG -------------------------------------------------------------------------------- /parts layout.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/parts layout.png -------------------------------------------------------------------------------- /pcb v1.1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/s21rc/Arduino-LDMOS-SSPA-Controller/6fa8b5d26005165fd940d54d7a9881e11f9a55c0/pcb v1.1.png --------------------------------------------------------------------------------