The result is a compact instrument with software that can be modified using the Arduino ... capacitive sensors to control note frequency and volume, this design relies on two optical sensors ...

Wanting to experiment with using optical ... t find the sensor bracket anywhere, so he designed his own. The github repository contains all the design files as well as Arduino libraries.

The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close ... by side as in the case ...