This device can set a timer from 0-9. And on (pressing) start, the timer decrements to with a buzzer indicating the end of time. The decremented time period is 1 second for each.
| Name | Quantity | Component |
|---|---|---|
| U1 | 1 | Arduino Uno R3 |
| R1 R2 R3 R4 R5 R6 |
6 | 0.47 kΩ Resistor |
| R7 R8 |
2 | 470 Ω Resistor |
| Digit2 | 1 | Cathode 7 Segment Display |
| R10 R11 |
2 | 10 kΩ Resistor |
| StimerBbutton SstartTimerBbutton |
2 | Pushbutton |
| PIEZO1 | 1 | Piezo |
