Enable the Arduino's main loop to ignore the clock while it performs other tasks. When the alarm happens, the DS3231 will pull the Arduino pin "low", that is, to near-zero voltage. The Arduino can ...

Contribute to mac-lucky/Arduino-RTC-with-Temperature development by creating an account on GitHub. ... PINs D8 and D7 are used to recognise and receive the signal if button is pressed. I used 2 pins, ...

The most popular RTC for the Arduino is the DS1307. However, it does have some drawbacks, the most notable of which is that its operating voltage is 5v, which means it cannot be used with 3.3v ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...

Bluetooth LE is v5.0 and up to 2Mbit/s – “it has the option to scan and advertise simultaneously, as well as supporting multiple connections in peripheral/central mode”, said Arduino. IO is 3.3V.