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Disposable Camera Flash

  1. Jun 4, 2010 #1
    Ok so last year I went way over my head and tried to build this http://makezine.com/04/strobe/" [Broken]. Which ended up being a huge failure, now I want to try doing something simpler.

    I went to CVS and they handed me 12 disposable camera's then which I figured out that if apply 5 volts to a pin and ground another pin the flash will go off. I also have a Nikon D80, and I love to take photos of water drops. From here I need your help, what circuit would be able to sense a water drop either by sound or light and trigger the flash. Most of the sound sensitive circuits I found were meant for louder sounds. I have also found how to's on makezine and instructables. Their is also http://www.hiviz.com/

    Can you guys give me some advice of where I should go. Would using the Hot shoe help?

    Here is a photo I took by hand, I had to take a lot of photos get this just this on
    http://dl.dropbox.com/u/1706399/DSC_0540%20copy.jpg" [Broken]
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Jun 4, 2010 #2


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    Staff: Mentor

    To sense a water drop passing a point, use a laser pointer aimed at a photosensor. As the drop passes through the beam, it will cause a blip in the photosensor output. If you don't want to keep taking pictures of red water drops, you can use an IR laser or IR LED setup instead.
    Last edited by a moderator: May 4, 2017
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