This user joined on 01/20/2017.
To control my CNC machine to move the cutter downwards until it made electrical contact with my metallic milling table, I added an ATMEGA168 and a DAC inside of a Joystick, to create custom input signals.
Old graduation project: A demonstration of encrypting messages, decrypting messages and breaking RSA encryption on Atmel microcontrollers, with nice buttons and TFT. Obviously, the RSA keys were extremely bad...
Another old project, that was a copy of the "Time Fountain", that "froze" fluorescent water drops mid-air using stroboscope effects with UV LEDs.
I wanted that same setup in a matrix version, to create 3D images. <a href="https://derjulian.net/luciddrop"; target="_blank">https://derjulian.net/luciddrop</a>;
An old project that made it to HackADay: <a href="http://hackaday.com/2008/11/22/tennis-ball-fetcher/"; target="_blank">http://hackaday.com/2008/11/22/tennis-ball-fetcher/</a>;
With camera-tracking and Omniwheels, it was quite some fun: <a href="https://www.youtube.com/watch?v=HKDY3f4z3a4"; target="_blank">https://www.youtube.com/watch?v=HKDY3f4z3a4</a>;