Quantity | Component name | |
1 | × | Arduino Nano |
1 | × | Rotary Encoder https://www.aliexpress.com/item/2PC-YT2004Y-Rotary-Encoder-with-Switch-EC11-Audio-Digital-Potentiometer-Handle-length-15mm-Rotary-Coding-Switch/32826453253.htm |
1 | × | AA Battery Holder |
1 | × | Four-digit, Seven-segment display https://www.aliexpress.com/item/0-36-Inch-0-36-4-Digit-Red-Green-Yellow-Blue-White-LED-Display-Tube-Decimal/32866984077.html |
3 | × | 3k3 Resistors |
1 | × | 560R Resistor |
1 | × | 27R Resistor |
1 | × | 20mm 8-ohm speaker |
6 | × | Yellow LEDs |
1 | × | BC547 Transistor Or equivalent |
4 | × | AA Batteries |