Wednesday, April 12, 2023

"Simple" Clock with LED Matrix

Turned out this one wasn't quite so simple (as usual).  Took me 3 hours to adjust the code to get it to work.  I used an Arduino Uno microcontroller and a DS3231 RTC module.   The RTC (real time clock) module has an onboard button battery so it remembers the correct time while turned off.  Tomorrow I try to run it with a the much smaller Wemos D1 mini microcontroller... 81,87,52,0,B

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