Not that we’re knocking [upir]’s accomplishment with these tricked-out 16×2 OLED displays. Far from it, in fact — the smoothly animated bar graph displays ... to an Arduino, plus a little ...

It uses an Enigma emulator running on an Arduino, similar to one that he stuffed ... a bit to fit the contours of the case. A small OLED screen peeks through the front bezel, which is done up ...