Water Droplet - Prototino Laser Beam Break

Using an Arduino prototyping board 'The Prototino' I soldered up a light sensor, and wired up an old 5v ac adapter to a cheap laser pointer.

 

Coffee droplet breaks the beam, which triggers the camera through a MOC3020 opto-isolator, and the flash goes off from the hot-shoe..

 

More to come.

Done