Greg writes “I have been playing around lately with an old disposable camera that I found lying around in my room. It was an ancient Kodak camera, but it had a flash, so I tore the thing apart. I noted how flimsy the case for the disposable camera was, and how hard it was to open it up. This would later spark my interest in finding a more suitable disposable camera for my project (Kodak Max). A film camera was necessary to use because they are so cheap. There was no reason to use a disposable digital camera because they cost a lot more.
Anyway, I decided I wanted to make an external slave. I thought about buying a slave peanut trigger. This is a little device that does exactly what I wanted to build. I would merely connect the flash switch to the peanut. I could not find one, so I decided to build my own.” – Link.