Rubyduino

Rubyduino compiles Ruby sketches for Arduino boards and uploads the generated firmware.

Under the hood it uses Spinel, a Ruby AOT compiler, vendored at a pinned revision.

Example

pin_mode(ArduinoUNO::LED_BUILTIN, ArduinoUNO::OUTPUT)

loop do
  digital_write(ArduinoUNO::LED_BUILTIN, ArduinoUNO::HIGH)
  delay_ms(100)
  digital_write(ArduinoUNO::LED_BUILTIN, ArduinoUNO::LOW)
  delay_ms(100)
end

Not bad, huh?

Installation

gem install rubyduino

The command expects the AVR toolchain to be available in PATH, including avr-gcc, avr-objcopy, and avrdude.

On macOS, install the AVR tools with Homebrew:

brew tap osx-cross/avr
brew install avr-gcc avrdude

On Debian/Ubuntu:

sudo apt install gcc-avr avr-libc avrdude

On Fedora:

sudo dnf install avr-gcc avr-libc avrdude

Usage

rubyduino examples/hello.rb

Pass a serial port explicitly when auto-detection is not enough:

rubyduino -p /dev/cu.usbmodem11401 examples/hello.rb

License

MIT