To run: dune exec examples/$EXAMPLE_NAME.exe Be sure to update the port in the examples according to you environment.

No serial port? If you don't have a serial device to play with, you may try: socat -d -d pty,raw,echo=0 pty,raw,echo=0.

Open the first device using the examples, and the second one using: socat - $DEVICE_LOCATION,raw,echo=0