Arduino Based Countdown Timer Without RTC | Simple Timer Project

This project shows how to build a basic countdown timer using Arduino without the need for an RTC Real-Time Clock module. The timer relies on the internal millis() function of Arduino to track time, making it cost-effective and easy to implement. Users can set the countdown duration via push buttons, and the remaining time is displayed on an LCD display. When the timer reaches zero, a buzzer or other alert activates. Code And Circuit Diagram: - https://github.com/PrateekSinghRajput/JustDoElectronics_Projects/tree/main/Arduino/Arduino_Countdown_Timer Component List ******************************* Arduino Nano Board 16x2 LCD Display 10k Resister Push Button Buzzer 5v 1 Channel relay Module 230v LED Blub Zero PCB Wire USB Cable ******************************* Project Buy Link ************************************************* Ready To Go Kit :- https://rzp.io/rzp/ThobkA2 Ready To Go Kit :- https://rzp.io/l/3lvOgiGQt ************************************************* get connected with justdoelectronics everywhere.... *************************************************************** Subscribe Main Channel :- https://bit.ly/4efKutM Subscribe Shorts Channel :- https://bit.ly/3TPRkOr Website:- https://justdoelectronics.com GitHub :- https://github.com/PrateekSinghRajput Instagram :- https://www.instagram.com/justdoelectronics Facebook:- https://www.facebook.com/justdoelectronics.justdoelectronics *************************************************************** 🎙🎥 My Gear 🎥🎙 ******************************************* Camera :- Canon EOS M50 Mark II (https://www.amazon.in/Canon-Mark-EF-M-15-45mm-Black/dp/B08KSKV35C) Microphone :- Mirfak audio tu1 Light :- DIGITEK (LED-D135 ML) 12W (https://bit.ly/4gJmjW9) Laptop :- MacBook Air (https://bit.ly/3N9Korz) ******************************************* 🌟 Please LIKE SHARE ❤️ And SUBSCRIBE For More AMAZING Content! 🎥 #ArduinoTimer #CountdownTimer #NoRTC #ArduinoProject #DIYElectronics #EmbeddedSystems #Microcontroller #TimerProject #ArduinoTutorial #SimpleTimer