This was written for micropython on ESP boards. Porting to some other board
should be easy, one would need to modify hardware.py to suit specific
hardware parameter. The purpose is tested and succeeds on ESP32 and ESP8266
boards.
Go in src. Edit board.py. Copy files over to an ESP device serving as
broadcaster (make sure to connect its ADC to something useful). Re-edit
board.py. Upload to the listener.
Alternatively, one could use the broadcasterInstallScript.sh that uses
rshell to upload files to the board. Then use listenerInstallScript.sh.
Those will set up the listener as a wifi access point, and tell the broadcaster
to connect to this AP before broadcasting ADC events. This way you can have
several (untested, but if you want to buy me a third board just mail me).
At the moment, the scripts rely on a working OLED display (to be changed).