Arduino EnigmaI have been wanting to make an Enigma Simulator with 16 segment displays, leds and buttons, but the Arduino Nano/Uno do not have sufficient I/O pins to do that. The Mega2560 R3 Pro Mini changes all that. It has enough IO pins to drive all the LEDs, read all the keys and have a full 26 letter plugboard without resorting to crazy multiplexing tricks. Below is an image of the board.
https://hackaday.io/project/165559-at-mega-enigma-a-2560-pro-mini-enigma-simulator
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