0-99 seconds and 0-99 minutes 2 digit countdown kitchen timer

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The projects shown here is a 2 Digit 00-99 Seconds or 00-99 Minutes Countdown kitchen timer based on PIC16F1825 micro-controller. The timer is useful in various applications like Cooking, Sports, Industrial, Sleeping. On board switches provided to set the time and start, a jumper to select the mode 99 Seconds or 99 Minutes. TTL output directly drives the Buzzer.
Features
• Supply 5V DC
• Timer 0-99 Seconds Or 0-99 Minutes
• On Board Power LED
• On Board Output LED
• Jumper J1 Mode Selection Open Seconds, Closed Minutes
• 2 Digit 0.5Inch 7 Segment Display
• Tact Switch for Time Set & Start
• Output 5V TTL Direct Drive Buzzer
  1. TWO VOLT
  2. kitchen timer
  3. 2 digit contdown timer pic projects
  4. 99 seconds timer
  5. 99 minutes timer
  6. pic micro based contdown timer
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Комментарии
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What are the dimensions of the pc board? The web page does not mention that. How can an optoisolator and solid state relay be added to switch mains current? Do you offer the gerbers for the pc board?

MooneyDriver
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Hello,
Your project is very useful. I made a prototype. So, I have a question about the "J2" jumper, what's the function of it?

Thank you.

Renato.

renatobragion
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Do you sell the pc board? I noticed on the web page that I can get 10 boards but no option for 1 or 2 boards. Also how easily can an opto isolator and solid state relay be added to switch mains voltages?

MooneyDriver