Timer Countdown on a PCB
by ishreetgrewal1 in Circuits > Computers
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Timer Countdown on a PCB
For this project I've created a Timer on a PCB board to that uses switches to load the value on to the 7 segment display and start countdown. At the end of the countdown the buzzer will go off.
- Get Solder Paste and apply it to the PCB
- Add the IC's to the appropriate locations
- Reflow the surface mount IC's (In my case, I've used an oven)
- Add remaining parts to the PCB by using a regular hand solder and solder paste
- Add wires to connect the board to power and GND
Couple of Notes:
- The capacitors and resistors go on the back of the board. To solder them on I've used a solder paste to position them, and a hand solder to keep them in place.
- After adding each component be sure to check the resistance to ensure you have not created a short
- To power the board I applied 10 V