The code is extracted from GxTFT and adapted for single controller use and Adafruit_GFX. Can be used with the "special" SPI circuit found on RPi and Waveshare TFTs. Can also be used with the native ...
It enables you to easily create MIDI controllers or instruments with very few lines of code. It supports digital inputs, like pushbuttons and switches, analog inputs, like faders, potentiometers, ...