
Sometimes I like to consider myself thrifty and save money building my own things instead of buying expensive versions found elsewhere. My current list of things include my camera sling strap, camera cord trigger, and now most recently I've made a light trigger for my camera. The image to right shows the basic breadboard prototype. Basically the important part is the
Light Dependent Resistor. The
Arduino prototype board reads the value of sensor any anytime it drops to a certain value (or darkness) then it triggers the camera.
Where I plan to use this is in conjunction with a laser pointer and doing precision photography such as the typical photo you'd see with the water droplet hitting water but taking the guess work out. I've add in a potentiometer to control the delay of the photo to dial in the timing.
I plan to fully solder this into a board so that I can just drop it on top of the Arduino anytime I want to use it instead of dealing with the tangle of wires. Also I'd like to add in a display to show the exact time delay. This design is very flexible and can potentially be use with any sensor including sound, heat, or motion at a very trivial cost. Altering the code would be simple.
BTW if anyone has a laser pointer or old LCD alarm they want to get rid of please let me know. =D
If anyone is curious, on the other end of the camera cable is a
3/32" connector standard to other canon remotes.