Friday, October 16, 2020

BinaryEnigma is possibly the smallest enigma machine ever built

[alank2] started a class of enigma machine simulators under 10x10cm and has now announced the latest addition to this family: BinaryEnigma

This class of machines was started to take advantage of the discounted rate when ordering pcbs sized 10x10cm and under from the Far East. The original, MicroEnigma using a 2 layer board and SMT components is described here:

https://enigmaworldcodegroup.freeforums.net/thread/91/microenigma

Another member of the family, PicoEnigma is a few millimeters smaller than MicroEnigma and uses all through hole parts, but needs a two board stack. 

https://arduinoenigma.blogspot.com/p/picoenigma.html

The smallest of the bunch, BinaryEnigma was announced in this forum post:

https://enigmaworldcodegroup.freeforums.net/thread/245/binaryenigma

It appears to use an Oshpark PCB with a minimal number of components, LEDs and pushbuttons in the front and an SMT ATtiny84a in the back along with a few support components. The whole thing is powered by a CR2032 lithium battery that lasts 200 hours of machine operation.

Here are a few videos of the members of this family:

MicroEnigma:


https://www.youtube.com/watch?v=TomMZATAFVY

PicoEnigma:

https://www.youtube.com/watch?v=e5l5f0q9yeA

BinaryEnigma:

https://www.youtube.com/watch?v=PVQSm2OKFzc


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