Hello, I have built an 3D binary clock with LEDs. Its multiplexed: 3 digital pins for the floors and 5 for the LEDs. There are 3 floors: 2x5 LEDs and 1x1LED to show 32 by the minutes. To set the clock, I have 2 Buttons and a potentiometer. If you press the first button, all minutes will light up …

Wrong input if USB powered.

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