https://youtu.be/2MKndPYqgps In this project we'll show you how we built a mini synthesizer with capacitive touch using Circuit Playground Express and MakeCode. Click for links and resources! Learn guide, files and more! https://learn.adafruit.com/touch-tone-for-circuit-playground-express/overview Circuit Playground Express https://www.adafruit.com/product/3333 MakeCode for Adafruit Circuit Playground Express https://makecode.adafruit.com/beta?webusb=1#editor Bantam Tools Desktop CNC https://www.bantamtools.com/ Visit the Adafruit shop online - http://www.adafruit.com