Touchpad MIDI
Ludo shows us how to turn an Arduino, touchpad and a display into a cool audio device called the Touchpad MIDI. "I’ve built a MIDI controller around the Arduino. Started from a scavenged Cirque Glidepoint resistive touchpad (PS/2 compatible), 2×8 LCD (in 4 bit mode), two buttons and a serial Arduino board. The buttons when pressed allow to set the Continuous Controller number by gliding the finger on the touchpad.