Giulio Pons| Quantity | Component name | |
| 1 | × | Arduino Nano |
| 1 | × | HC-SR04 ultrasound sensor |
| 1 | × | LDR photoresistor |
| 7 | × | 3mm Leds |
| 1 | × | 10kohm potentiometer |
| 1 | × | 5ohm speaker |
| 1 | × | 1 mechanical switch |
| 7 | × | resistors for leds |
| 1 | × | resistor for LDR |
Arduino Theremin (with volume.h)
There are a lot of versions of Arduino Theremins on the Internet, this is a bit different and uses two sensors and the volume.h library.