Penrose - stops working occasionally


I recently built the Penrose. I have calibrated it and when I power the module it works a expected. But after a while Penrose stays on one value or jumps between two values, event though all buttons are switched on.

I hope someone can help me.


  • I just purchased a used one, and it's doing the same thing as yours. It never works properly though, it only stays on one value or jumps between 2. Would love to fix it, as a return is unlikely!

  • Fixed! My atmega168 had a broken leg, so I went on a quest and learned how to flash a new one... but it still didn’t operate as expected! Then I reflowed all of the solder joints... and it lives! I’m really enjoying this module, what a cool design!
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