Circuit Diagram - Electronic countdown for AC control
$250-750 SGD
已完成
已发布超过 11 年前
$250-750 SGD
货到付款
Develop a circuit with the following features:
- Countdown timer (00:00) - minutes and seconds using 4 (four) - 7 segment LED + 2 LEDs to fo the (:) between the minutes and seconds
- 4 buttons
1) (+) increase the number of seconds and minutes
2) (-) decrease the number of seconds and minutes
3) (Start) start the countdown and turn on the AC power and turnoff status LED
4) (Stop) stop the countdown, return the countdown to default value and turn off the AC power and turn off status LED
- The last countdown value has to me stored in the memory and should be displayed next time
- c programming
- microchip prefferable
More details will be shared later on.