Use a cheap RTC to wake up your Arduino in Deep Sleep - 192-DS3231-Wake-Up-Arduino/YouTube Sketch/Arduino_DS3231_Wakeup.cpp at master · RalphBacon/192-DS3231-Wake-Up-Arduino ...

What is the DS3231 Real Time Clock Module? - Complete Introduction The DS3231 RTC module is a real-time clock that uses less power and has highly accurate communication via an I2C interface. Also, the ...

You want to determine precise times when the Arduino will run special code segments in a sketch, without using the timers and counters in the Arduino hardware. You have some skill and experience ...

Teyleten Robot DS3231SN DS3231 Real Time Clock Module RTC Clock AT24C32 Without Battery for Arduino Raspberry(5PCS) HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 5V for Arduino ...

This school automation system for reminding the school prayer or national anthem time and period-over bell utilises Arduino to automate the bell schedule and integrate the playing of the national ...