Plant-Based Musical Touch Sensor Overview This project turns a plant into a musical instrument using capacitive touch sensing technology inspired by Disney's Touché sensor. By integrating a custom ...

Creating capacitive touch-sensitive buttons is easy these days; many microcontrollers have cap-sense hardware built-in. This will work for simple on/off control, but what if you want a linear, posi… ...

The project’s page goes into a great amount of detail on how capacitive touch sensors like these work in general, and describes the operation of this specific code as well.