2 layers100 × 62 mm
Esp32s3aprs
mcapdeville/esp32s3aprs
ESP32s3 APRS beacon/tracker/logger, USB kiss TNC , USB audio FM tranceiver with Micropython shell
156 parts8CERN-OHL-S-2.0
Boards using the PCM13SMTR
8 boardsBoards in 6 GitHub repositories, designed in KiCad, that use the PCM13SMTR by C&K (-20℃~+85℃ 6V PC Pin Rectangular Columnar SP3T Surface Mount,Vertical SMD Slide Switches ROHS). See how each wires it, with its parts, size, README and files; the PCM13SMTR’s symbol, footprint and pinout are on its own page.
- 4 layers54 × 64 mm
- 2 layers32.4 × 52.7 mm
Isolated UART
zemonkey/Isolated_UART
An isolated USB to UART/RS232/RS485 module using FT231XS.
32 parts - 2 layers67 × 50.8 mm
- 4 layers69.8 × 50.4 mm
- 2 layers36 × 52 mm
- 2 layers77.5 × 29.2 mm
- 2 layers72 × 72 mm
Air quality pcb v6
NilsEngelbach/air-quality-pcb
Seventh iteration: ESP8266 → ESP32-C3 (native USB, no UART bridge), fixes from the v6 design review, right-angle switches with longer actuators, a STEMMA QT port for optional sensors, and charge-status sensing.
72 parts