openblock-firmata

Instructions

git submodule init
git submodule update
cmake -B build -G Ninja
cmake --build build

Flash artifacts land in dist/<board>/. Build a single board with cmake --build build --target arduinoEsp32. Reset everything (outputs and submodule patches) with cmake --build build --target clean-all.

Supported boards:

• AVR: arduinoUno, arduinoNano, arduinoMega2560
• ESP32 family: arduinoEsp32, arduinoEsp32S3, arduinoEsp32C3, arduinoEsp32C6
• ESP8266: arduinoEsp8266
• Pico family: arduinoPico, arduinoPicoW (Pico 2 / Pico 2W disabled — RP2350 not yet supported in Boards.h)

Feature toggles (ENABLE_*) are configured in CMakeLists.txt via FIRMATA_BASE_FEATURES plus per-board EXTRA_FEATURES / DISABLE_FEATURES, not in the sketch.

The Pico (rp2040) and ESP8266 cores are not bundled. Install them via arduino-cli core install first:

arduino-cli core install rp2040:rp2040 \
  --additional-urls https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
arduino-cli core install esp8266:esp8266 \
  --additional-urls https://arduino.esp8266.com/stable/package_esp8266com_index.json