The Enigma machine basically consisted of three or more rotors that had contacts on both sides. The rotors are set to the encryption or decryption “key” then a button is pushed which goes through the wiring in the rotors, then lights up a lamp corresponding to the encrypted output (there’s a lamp for every letter in the alphabet). To decrypt you simply start with the same key that was used to encrypt the data and type in the cipher text. One thing significant about the Enigma machine is that the rotors rotate as each key is pressed, so the encryption key essentially changes with each character.
I was in a thrift store recently and saw a game with a screen and a keyboard and I thought, that would make a good Enigma machine (I’ve always wanted one, but I know my wife would kill me if I bought a real one $$$). In this instructable I’ll show how I gutted an kids game and used an Arduino to hook up to the keypad and speaker. The code’s not too bad (so far). This version is a simple three rotor Enigma machine. You can switch the rotors around and change the letters for the rotors. Future plans are to all for more rotors, allow changing out the reflector, allow for spinning the ring around a rotor, and a plug board implementation. This Enigma machine will be able to encode and decode messages to and from the real, old Enigma machines used during Wold War II.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Charitable business and the Buy-One Give-One angle
Wearables — Stitch marks
Electronics — Capacitor ESR
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — The Top Programming Languages 2019 – Python tops the charts with a CircuitPython nod! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
Adafruit IoT Monthly — Adafruit IO Updates, RGB Stream Deck Message Panel, and more
Microsoft MakeCode — Welcome to the MakeCode Newsletter!
No comments yet.
Sorry, the comment form is closed at this time.