For use with the MPR121 12-Key Capacitive Touch Sensor on a Raspberry Pi.
- Follow the steps at CircuitPython on Raspberry Pi Setup
- Install the adafruit-circuitpython-mpr121 Python package
- Additionally, install the pygame and pyyaml Python packages
- Configure config.yaml and run main.py
- Touch a pin to play a looping sound (touch it again to stop it)