![Arduino Countdown Timer Arduino Countdown Timer](https://www.electronics-lab.com/wp-content/uploads/2016/05/FP6CQL1IOEBCLE1.MEDIUM.jpg)
In this Instructables guide I will show you how to make your own Arduino two digit countdown timer. I made my own circuit by using the ATmega328 micro controller but this is an optional step. In this guide I will help you to make it easily on breadboard by using the Arduino uno board!
Arduino Countdown Timer – [Link]
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