Pico32 is small (13mm*13mm) open source board based on ESP32-PICO-D4. It was designed for full use of the SoC package from Espressif & make it more accessible so you can simply handsolder without any special tools. It has a 4MB embedded flash (esp32-pico-d4 datasheet).
This board does not have USB to UART converter, you will need an external one to program it (they are pretty cheap). For a programming guide, check out FLASHING.md.
Main folders:
| Name | Content |
|---|---|
| hardware | board CAD files |
| images | images of the board |
| models | Exported 3D models |
| order | GERBER, BOM & CPL files |
Subfolders:
| Name | Revision | Tested | Comment |
|---|---|---|---|
| pico32_v1_jlcpcb_assembly | v1 | YES | got removeable frame to match jlcpcb assembly requirements; designed in EasyEDA; fully working, but has pins from bootm & got only 100mA regulator |
| pico32_v2 | v2 | NO | pins from side; better regulator; designed in KiCad |
| pico32_v2_jlcpcb_assembly | v2 | NO | got removeable frame to match jlcpcb assembly requirements, other parameters are the same as pico32_v2 |
Currently I dont sell these myself, but you can check out how to buy them for yourself on ORDER.md guide.
This version is more universal than the first one, it also removes the flaws of v1. It has the same footprint as before (13mm*13mm), but instead of having pads on the bottom, it has them cascellated through holes on sides so you can easily solder it on a homemade PCB.
Known issues:
- NONE
This was used as the test of how many components ESP32-PICO-D4 needs, it works pretty well, but if you use CPU speed over 80MHz it will throw Brownout detector was triggered. With its 13mm*13mm footprint, you can simply fit it in ending of aluminium profile & control rgb leds with it.
Known issues:
- Wrong LDO - only 100mA
- Too small capacitors ?
