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How to Build an Arduino Countdown Timer without RTC Module
In this video,I make a digital countdown timer that allows a user to set a specific duration to power an appliance (like the LED bulb in the photo) on or off. Code & Circuit Diagram :- https://github.com/PrateekSinghRajput/JustDoElectronics_Projects/tree/main/Arduino/Arduino_Countdown_Timer Component List ******************************* Arduino ...
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