There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, ...
It's a solved problem, but I actually prefer a simple web UI.
ML SynthTools 1.3.1 https://github.com/marcel-licence/ML_SynthTools https://github.com/marcel-licence/ML_SynthTools.git False ML SynthTools Libraries 0.0.1 https ...
Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. const int buttonPin = 2; // the number of the pushbutton pin const int ledPin = ...