Renkku is able to take some great action shots with this  PIC AXE Microcontroller based High Speed Photography Trigger. The system is connected to a flash unit and triggers the flash as soon as it hears something. This makes the unit very flexible since it can then listen for almost anything. If you want to see more of these type of cool images have a look on Flickr.

“I hacked a cheap camera flash shoe so that it has a 3.5mm cable jack insted of a pc-sync cable. A 10 cm ling Pc sync cable is 10 times the price of a 150 cm 3,5mm cable. I have a Brain circuit, a Sound Detecting Circuit and a sensitive gate SCR to trigger the flash. The picaxe is not overclocked (running at 8MHz). The box has a 3.5mm jack for a picaxe USB download cable so it is easy to program more. The code is now about 400 rows (basic) with alot of white space. alot of code is taken up by the menu system. I will try to make some kind of strobe funktion to”