petrowhich
commented
1 year ago | Hardware: | Item | Quantity | Notes |
|---|---|---|---|
| Arduino Nano V3.0 | 1 | ||
| LED | 2 | White and green | |
| a <70 dB piezo buzzer | 1 | ||
| 200Ω resistor | 2 | ||
| 12mm Push button | 5 | 2-PIN preferred (planned use) | |
| 20x4 LCD HD44780 display with I2C interface | 1 | (planned use) |
Find real parts to assemble the circuit.