Custom panel for UMO.Using over-the-top OLED-display and an encoder scroll-wheel from a cheap USB-mouse.The electronics is pretty much a one-off job as you can see. The schematic is based on the schematics for the genuine Ulticontroller.The OLED needs one extra pin to function and a special library, too.I uploaded two different STL's - One with the rotary encoder rotated 90 degrees.