https://github.com/markusschanta/openenigma

Open Enigma - This repository contains the Arduino code for the S&T GeoTronics M4 Enigma.
https://github.com/markusschanta/openenigma

arduino arduino-sketch cryptography enigma enigma-machine

Last synced: 6 months ago
JSON representation

Open Enigma - This repository contains the Arduino code for the S&T GeoTronics M4 Enigma.

• Host: GitHub
• URL: https://github.com/markusschanta/openenigma
• Owner: markusschanta
• License: mit
• Created: 2018-07-18T15:59:05.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-10-02T15:21:16.000Z (about 4 years ago)
• Last Synced: 2025-03-21T03:51:15.464Z (9 months ago)
• Topics: arduino, arduino-sketch, cryptography, enigma, enigma-machine
• Language: C++
• Homepage:
• Size: 1.51 MB
• Stars: 14
• Watchers: 3
• Forks: 5
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# Open Enigma

[![Banner](docs/banner.jpg)](https://www.instructables.com/id/Make-your-own-Enigma-Replica/)

This repository contains the Arduino code for the [S&T GeoTronics M4 Enigma](https://www.instructables.com/id/Make-your-own-Enigma-Replica/).

The S&T GeoTronics M4 Enigma is an Arduino Mega custom shield programmed to replicate the behavior of a [German M4 Enigma machine](https://en.wikipedia.org/wiki/Enigma_machine).

It consistes of 4 16-Segment units, 5 LEDs, 26 Lamps setup as keyboard, 26 keyboard buttons & 10 Function keys. The 115 light emitting diodes are multi-plexed. This minimizes the amount of pins needed to control them down to 38 pins and all 36 pushbuttons keys are sharing a total of 4 pins.

## Installation Instructions

Depending on your type of kit, you need to install the relevant version of the code onto the Arduino:

 - **[Open Enigma M4](Open%20Enigma%20M4.ino)**

 - **[Open Enigma M4 with Plugboard](Open%20Enigma%20M4%20Plugboard.ino)**

## Operation Instructions

To understand how to operate the S&T GeoTronics M4 Enigma, please refer to the following guide:

 - **[BJ Gleason - Open Enigma for Dummies](https://github.com/markusschanta/openenigma/blob/master/docs/BJ%20Gleason%20-%20Open%20Enigma%20for%20Dummies.pdf)**

## Release Notes

 - Designed, assembled & programmed by Marc Tessier & James Sanderson 20/9/13.

 - Modified for Prototype PCB pair on 4/12/13.

 - Modified to obey doublesteping and have M3 function 22/3/14.