Arduino Countdown timer with 4 digit 7 segment display TM1637
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We created an Arduino countdown timer in this video. This Arduino countdown timer does not use any RTC Module which we did use in one of our previous videos which was the Arduino digital Clock. Most of the configuration and the working of the timer is similar to the previous one instead we used the TIMER1 of the ATMEGA328p microcontroller.
This project is easy to build specially for any beginner who wanted to learn and practice easy Arduino projects for beginners. Or you can say this beginner-friendly Arduino project.
We created inbuilt TIMER1 Interrupt for a 1-second delay.
This Arduino countdown timer is adjustable. We can adjust the minute and seconds of this countdown timer. For display purposes, we used the 4 digits 7 segment module of TM1637.
This Arduino countdown timer could be used in various applications like microwave oven timers or other similar applications. We also added one relay module with the countdown timer so that when we press the start button the timer starts ticking and decrement the second from the adjusted time and once the time reached zero it will automatically turn off the relay.
So if we ever need to control any device with preset time we can use this preset adjustable Arduino countdown timer.
