1hp: Voltmeter Clock

This is the first edition of a series I’m calling “1 Hour Projects” or “1HP” for short.

I made this voltmeter clock using a simple script that varies an Arduino PWM out a fraction of its maximum voltage (5v) with each second. Every 8 seconds it does a recall of the current time by first ticking over to the hour and then the minute.

The whole thing was programmed in Processing. You can find my code below.