Quantity | Component name | |
1 | × | Arduino Pro Mini 5v 5v version is better here as the relay modules need 5v to activate |
2 | × | 5v Relay Module Readily available online via ebay etc |
1 | × | Push Button Any normally open switch will do here |
1 | × | 10k ohm resistor Used as a pull up for the button input |
1 | × | Piezo speaker Used to play the tones |
1 | × | Red Lamp Activated via a relay module |
1 | × | Green Lamp Activated via a relay module |