Quantity   Component name
2 × Hard Disk w/ motor
4 × IR reflective sensors consisting of an IR LED and a phototransistor
2 × Op-Amp LM-358 used as comparators with hysteresis
1 × Teensy 3.1 Microcontroller
12 × Nail as a capacitive sensor
4 × Potentiometer 25kOhm
2 × Fader 10kOhm
2 × Ribbon sensor
2 × FSR Pressure sensor
5 × White LED
2 × Switch Development Kits, Boards and Systems / Development Kits and Boards