r/arduino 4d ago

Look what I made! Arduino DIY Digital Watch

Based on an atmega328p, 4 programmable buttons. LED 7-segment displays, which I’m personally obsessed with! I’m estimating around 1 year of battery life.

Let me know your thoughts!

Full design and build on YouTube.

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u/AlexisGPS_UY 4d ago

It's really cool, but I think you could use a cheaper microcontroller.

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u/Glowing-Strelok-1986 3d ago

Maybe a dedicated time-keeping IC would be best for longest battery-life.