Archive for date: January 15, 2011

Colossus: The secrets of Bletchley Park’s code-breaking computers

January 15, 2011 | Books I Read, Cryptography | By: Mark VandeWettering

As long time readers of my blog might remember, I’ve been fascinated by old cryptographic machines. I spent quite a bit of time tinkering around with them back when I was working on Simon Singh’s cipher challenge in his book. In particular, I spent a considerable amount of time reading up on the German Enigma […]

Morse on Arduino code, now at Arduino Playground

January 15, 2011 | Amateur Radio, My Projects | By: Mark VandeWettering

A long time ago, I wrote some code to send simple morse messages by toggling a pin of an Arduino. It could either blink an LED, or if you wired a bias resistor and transistor to it, you could use it to (say) act like a key for the FT-817. But then I lost the […]