Crash-triggered photography with Arduino

An arduino detects the collision of the matchbox cars and flashes a light at that exact moment in front of the open camera shutter to capture an exposure.

 

This one had a minor double exposure because of a timing issue in the circuit that I worked out afterwards, but it was the best aesthetically.

 

Full write-up here: Crash Photography with Arduino and MatchBox Cars

 

Arduino code

 

Video of the process

 

Done