After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...

The part list consists of one Arduino, two resistors, and one IR emitter. That’s right, an emitter. When an LED (IR or otherwise) is reverse biased it can act as a light sensor.

Watch the video after the jump to learn more about the Arduino Infrared touchscreen music controller project and see it in action. “The touchscreen uses infrared (IR) sensing to detect fingers ...