Geo bruce, an Instructables user, managed to DIY an arduino-controlled equipment which can react and control your camera’s exposure and do high-speed photography.
As Geo bruce put it, with this device you’ll be able to take pictures from anything you can sense or detect?whether it’s movement or sound?and you don’t need to modify your camera or flash for this. It’s compatible with the old High Voltage flashes and the new TTL ones.
This device is based on an arduino circuit which connected with a laser trigger sensor , a laser driver and an LCD module. For more details and codes, check this out atInstructables.
Here's some more pictures come out of this brilliant project. Source?Instructables