When you read “Arduino wristwatch”, you fall into ... One IC is an AVR micro, of course. The other is a DS3231 real time clock with built-in crystal. A CR2032 keeps it all running.

When you read “Arduino wristwatch”, you fall into ... One IC is an AVR micro, of course. The other is a DS3231 real time clock with built-in crystal. A CR2032 keeps it all running.

Dejan Nedelkovski has built a stylish DIY touchscreen Arduino music player and alarm ... MP3 Player module and for the alarm clock it uses the DS3231 Real Time Clock module. The home screen ...