I started working on a binary clock project with the Arduino.
I followed other tutorials but encountered two issues:
One, the binary clock ran about 37 seconds fast because the lack of a RTC
Two, I couldn’t include a RTC because the LEDs took up all the available pins.
I started working on a new binary clock project with the requirements that it kept accurate time, it didn’t use as many pins, and I could set the time.
I sacrificed the addressable LEDs I had used for my Christmas Tree lights and began to work on the new binary clock. This is the result.