Spink is a project mainly written in JAVA and C++, it's free.
Adjustable Canon LED Timer built using an Arduino
Arduino code for a basic adjustable timer for a Canon 550D.
This is my first proper attempt at a non-trivial Arduino project, so bear with it. It uses the SimpleTimer library, available from:
http://www.arduino.cc/playground/Code/SimpleTimer
This was built against an Arduino Ethernet board (i.e. one of these http://www.arduino.cc/en/Main/ArduinoBoardEthernet). As such, certain pins are omitted as they are reserved for the Ethernet interface and SD card.
The pin-mappings are as follows:
Other pins:
Lots and lots of existing tutorials were used to help get this going. These include:
There were various others I tried at points, but these were the ones that seemed to work best for me. If you spot similarities to other tutorials I've not mentioned, let me know and I'll add creds where I've missed them.