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Ultra precise retro style OLED ArduWatch

Fits in a 40 mm watch case, CR2032 powered Pro-Mini with RTC DS3231, imitates vintage LED watch from the 70’

It was starting with experimenting with a RTC Module DS3231 and a UNO.Why the DS3231 ?The DS3231 is a low-cost, extremely accurate I2C real-time clock with an integrated temperature-compensated crystal oscillator

The Rodan Library :I was choosing the Rodan Library because it has a good support for setting the date, time with the IDE Serial monitor, see the line// TssmmhhWDDMMYYYY aka set timejust type T005710418012023 + SEND ( Set Terminate to CR ) in the Serial Monitor to setthe Time to 10h57:00 and the date to Wed January 18, 2023”

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