| Quantity | Component name | |
| 1 | × | Arduino Nano Development board with atmega328p |
| 3 | × | Resistors, 500-1500 Ohm |
| 1 | × | NAND gate, SN7400 for example May be not needed if you remove LED from pin D13. |
| Quantity | Component name | |
| 1 | × | Arduino Nano Development board with atmega328p |
| 3 | × | Resistors, 500-1500 Ohm |
| 1 | × | NAND gate, SN7400 for example May be not needed if you remove LED from pin D13. |