├── images ├── IMG_0017.jpg ├── IMG_0031.jpg ├── IMG_0106.jpg ├── IMG_0107.jpg ├── IMG_0131.jpg ├── IMG_0728.jpg ├── IMG_4776.jpg └── IMG_9520.jpg ├── .gitmodules ├── pcb ├── tracker │ ├── v0.1 │ │ ├── 2D_PCB1_2023-02-14_top.png │ │ ├── 3D_PCB1_2023-02-14_top.png │ │ ├── 2D_PCB1_2023-02-14_bottom.png │ │ ├── SCH_Schematic1_2023-02-14.pdf │ │ ├── 3D_PCB1_2023-02-14._bottompng.png │ │ ├── JLCPCB │ │ │ ├── Gerber_PCB1_2023-02-14.zip │ │ │ ├── BOM_Board1_PCB1_2023-02-14_order.xlsx │ │ │ └── PickAndPlace_PCB1_2023-02-14_order.xlsx │ │ └── ProProject_PicoBalloon RP2040 v0.0_2023-02-14.zip │ ├── v0.2 │ │ ├── 2D_PCB1_2023-03-23_top.png │ │ ├── 3D_PCB1_2023-03-23_top.png │ │ ├── 2D_PCB1_2023-03-23_bottom.png │ │ ├── 3D_PCB1_2023-03-23_bottom.png │ │ ├── AG6NS_PicoBalloon_RP2040_v0.2.eprj │ │ ├── JLCPCB │ │ │ ├── Gerber_PCB1_2023-03-23.zip │ │ │ ├── BOM_Board1_PCB1_2023-03-23.xlsx │ │ │ └── PickAndPlace_PCB1_2023-03-23.xlsx │ │ └── SCH_Schematic1_2023-03-23_v0.2.pdf │ ├── v0.3 │ │ ├── 2D_PCB1_2023-05-23_top.png │ │ ├── 3D_PCB1_2023-05-23_top.png │ │ ├── 2D_PCB1_2023-05-23_bottom.png │ │ ├── SCH_Schematic1_2023-05-23.pdf │ │ ├── AG6NS_PicoBalloon_RP2040_v0.3.eprj │ │ └── JLCPCB │ │ │ ├── Gerber_PCB1_2023-05-23.zip │ │ │ ├── BOM_Board1_PCB1_2023-05-23.xlsx │ │ │ └── PickAndPlace_PCB1_2023-05-23.xlsx │ ├── v0.4 │ │ ├── SCH_Schematic1_2023-09-11.pdf │ │ ├── SCH_Schematic1_2023-09-11.png │ │ ├── AG6NS_PicoBalloon_RP2040_v0.4.eprj │ │ └── JLCPCB │ │ │ ├── Gerber_PCB1_2023-09-11.zip │ │ │ ├── BOM_Board1_PCB1_2023-09-11.xlsx │ │ │ └── PickAndPlace_PCB1_2023-09-11.xlsx │ └── v0.3.1 │ │ ├── SCH_Schematic1_2023-07-09.pdf │ │ ├── AG6NS_PicoBalloon_RP2040_v0.31.eprj │ │ └── JLCPCB │ │ ├── Gerber_PCB1_2023-07-08.zip │ │ ├── BOM_Board1_PCB1_2023-07-08.xlsx │ │ └── PickAndPlace_PCB1_2023-07-08.xlsx └── boost_converter │ └── boost_0.8V_to_3.3V_v0.1.eprj ├── .gitignore ├── README.md └── LICENSE /images/IMG_0017.jpg: 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/.gitignore: -------------------------------------------------------------------------------- 1 | CMakeLists.txt.user 2 | CMakeCache.txt 3 | CMakeFiles 4 | CMakeScripts 5 | Testing 6 | Makefile 7 | cmake_install.cmake 8 | install_manifest.txt 9 | compile_commands.json 10 | CTestTestfile.cmake 11 | _deps 12 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # sf-hab_rp2040_picoballoon_tracker_pcb_gen1 2 | [sf-hab.org](https://sf-hab.org/) RP2040 based PicoBalloon Tracker PCB generation 1 for **STEM education**, designed by AG6NS 3 | 4 | This [RP2040](https://www.raspberrypi.com/products/rp2040/) based PicoBalloon Tracker PCB gen1 project is intended for ***STEM*** *(Science, Technology, Engineering and Mathematics)* educational purposes. 5 | 6 | [](pcb/tracker/v0.4/SCH_Schematic1_2023-09-11.pdf) 7 | 8 | 9 | 10 | 11 | 12 | ## Documenation, Instruction and Q&A 13 | Please refer to the [Wiki](https://github.com/kaduhi/sf-hab_rp2040_picoballoon_tracker_pcb_gen1/wiki) 14 | 15 | ## Question? 16 | I will only answer questions from people who are a part of a STEM education program (student, teacher, mentor, advisor, ...), please send them via email (*my call sign* @ arrl.net). 17 | The answers to these questions will also be added to the [Wiki](https://github.com/kaduhi/sf-hab_rp2040_picoballoon_tracker_pcb_gen1/wiki) for the benefit of all other STEM education groups. 18 | 19 | **Note:** ***I will most likely ignore all emails from people who are not part of a STEM education program. If you are not a part of a STEM education program, please do not waste your time sending any questions.*** 20 | 21 | ## How to open the ".eprj" CAD project file 22 | When I started designing this PCB, I asked another member "What CAD software should I use?" and the answer was [**EasyEDA**](https://easyeda.com). I had only used Eagle before for designing my PCBs, so I had to learn it just for this project. The biggest reason we chose EasyEDA is because it is easy to link to the JLCPCB parts library. We only use [JLCPCB](https://jlcpcb.com) for [PCB fabrication](https://jlcpcb.com/capabilities/pcb-capabilities) and [PCB assembly service](https://jlcpcb.com/capabilities/pcb-assembly-capabilities), we thought this was a good decision at the time... 23 | 24 | Anyway, this PCB was designed with a specific version of the [**EasyEDA Pro**](https://pro.easyeda.com) --- [***easyeda-pro-linux-x64-1.8.39***](https://image.easyeda.com/files/easyeda-pro-linux-x64-1.8.39.zip). You can download it from [Here](https://image.easyeda.com/files/easyeda-pro-linux-x64-1.8.39.zip). 25 | 26 | ## Firmware (Software) 27 | Since my PicoBalloon firmware is still half baked, I have ported the existing well known PicoBalloon tracker firmware --- [**LightAPRS-W-2.0**](https://github.com/kaduhi/LightAPRS-W-2.0/tree/port_to_ag6ns_rp2040_picoballoon_tracker) to this Tracker board. 28 | 29 | The ported version of the repository is added to this project as a git submodule, so once you clone this repository you need to do: 30 | ``` 31 | git submodule init 32 | git submodule update 33 | ``` 34 | 35 | The original LightAPRS-W 2.0 tracker uses two different chips (Si5351A and Si4463) for supporting both HF and VHF bands, but my ported version only uses the Si5351A/MS5351M to generate both HF (WSPR in 20m band) and VHF (APRS in 2m band). 36 | 37 | ## License 38 | [creative commons CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) 39 | 40 | [](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.txt) 41 | 42 | ## Project Background and History 43 | **Oct 2021** - attend to [SF-HAB (San Francisco Bay Area High Altitude Balloon) group](https://sf-hab.org/)'s Amateur Radio Pico Balloon presentation at Pacificon 2021, then joined the group 44 | 45 | **Dec 2021** - start writing firmware for existing W6MRR V6.6 Pico Balloon Tracker boards 46 | 47 | **Oct 2022** - at Pacificon 2022, meet a group of people from San Diego doing Pico Balloon / Ocean Buoy STEM educational programs for local high school students. They are looking for a new Tracker board that is specialized for their STEM education programs. They mentioned about the idea of using RP2040 as a controller chip, run tracker software in 1st CPU Core and MicroPython in 2nd Core for students to customize / extend the tracker functionalities. The tracker should be open source and open hardware, and not expensive 48 | 49 | **Jan 2023** - during a SF-HAB online meeting, I was assigned to design a RP2040 based next generation Pico Balloon Tracker board 50 | 51 | **Jan 2023** - start designing a tracker board 52 | 53 | **Feb 2023** - order and receive the v0.1 prototype boards 54 | 55 | **Mar 2023** - update design, order and receive the v0.2 prototype boards 56 | 57 | **Apr 2023** - launch the v0.2 tracker [AG6NS-11](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=AG6NS-11&q=AG6NS-11) from Hayward California, flown for 12 days then stop working above Iran 58 | 59 | **May 2023** - launch another v0.2 tracker [K6EAU-11](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=K6EAU-11&q=K6EAU-11) from Milpitas California, flown for 77.9 days (2.7 circumnavigations) 60 | 61 | **May 2023** - update design, order and receive the v0.3 prototype boards 62 | 63 | **Jun 2023** - launch the v0.3 tracker [W6MRR-27](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=W6MRR-27&q=W6MRR-27) from Milpitas California, flown for 1.5 days (accumulated ice destroyed the balloon? altitude dropped from 13km to 3km during night, then slowly back to 13km) 64 | 65 | **Jun 2023** - launch another v0.3 tracker [AG6NS-12](https://amateur.sondehub.org/#!mt=Mapnik&mz=11&qm=366d&f=AG6NS-12&q=AG6NS-12) from Milpitas California, flown for 1 day 66 | 67 | **Jul 2023** - launch another v0.3 tracker [AG6NS-13](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=AG6NS-13&q=AG6NS-13) from Milpitas California, flown for 1 day (balloon failure, landed in Mexico then keep transmitting signal for 3 days) 68 | 69 | **Jul 2023** - update design, order and receive the v0.3.1 prototype boards 70 | 71 | **Aug 2023** - launch another v0.3 tracker [WB6TOU-14](http://lu7aa.org/wsprx.asp?banda=20m&other=wb6tou&balloonid=q8×lot=8&repito=on&wide=&detail=&SSID=14&launch=20230808170001&tracker=wb8elk) from Lodi California, as of Mar 30 2024 **still flying for 234 days.** It requires high sun angle due to the tiny single solar cell therefore reports are limited during winter. 72 | 73 | **Sep 2023** - launch the v0.3.1 tracker [AG6NS-14](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=AG6NS-14&q=AG6NS-14) from Milpitas, California, flown for 1 day (balloon failure, landed near Mono Lake then keep transmitting signal for 53 days) 74 | 75 | **Oct 2023** - launch another v0.3.1 tracker [AG6NS-15](https://amateur.sondehub.org/#!mt=Mapnik&mz=8&qm=366d&f=AG6NS-15&q=AG6NS-15) from Milpitas California, as of Mar 30 2024 **still flying for 174 days and completed 16.8 circumnavigations** 76 | 77 | **Nov 2023** - release an **Ocean Buoy** with the v0.3 tracker [KQ6RS-12](https://aprs.fi/#!call=a%2FKQ6RS-12&timerange=604800&tail=604800) at 420 miles WSW of San Diego California (from a boat), as of Mar 30 2024 **still floating on Pacific Ocean for 144 days** 78 | 79 | # 80 | 81 | Kazuhisa "Kazu." Terasaki, AG6NS 82 | 83 | if you are insterested in, [here](https://www.instagram.com/kazuterasaki/) is my latest updates 84 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International 2 | Public License 3 | 4 | By exercising the Licensed Rights (defined below), You accept and agree 5 | to be bound by the terms and conditions of this Creative Commons 6 | Attribution-NonCommercial-ShareAlike 4.0 International Public License 7 | ("Public License"). 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