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 ...

The 'Show Off' t-shirt comprises a printed OLED, sound sensitive spectrum analyzer ... How long until we see animated ads on here?

If you’ve got an Arduino, a few passive components, and a SSD1306 OLED, then [mircemk] might have the answer for you. As you can see in the video below, his code turns a handful of cheap parts ...

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