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Help Building a Timed Camera Trigger - 6/29/2010 8:47 PM   
russ_hillis


 

Posts: 139
Score: 100
Joined: 6/18/2010
Last Login: 12/26/2011
From: Coronation, AB, CANADA
Status: offline 		I want to use a timed trigger on a 8+ megapixel still cam rather than a video camera. The project seems simple enough and I'm hoping a 555 IC will help me accomplish this. I would appreciate some input. I'm hoping to make the circuit small & light - so this is what I'm thinking of using - a 555 IC to create the pulse, an 8 pin opto-coupler for the relay (because that's what I have), and a trim pot to vary the current being fed to the IC so that I can vary the intervals of the pulse. I was thinking of using the circuit from this page http://www.thefintels.com/aer/cameratimer.htm and modifying it to suit my needs. (eg an 8 megapixel wallet cam). I'll need the circuit to pulse the opto-coupler about every 1.5 - 30 seconds for this project. Also since I need a light weight circuit I'm wondering what the minimum power source would be. Is there a way that I could build something using a CR2032 battery or similar? Seems easy enough, until I visit digi-key and they start asking which resistance is needed for the IC. At which point, I'm stumped.

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RE: Help Building a Timed Camera Trigger - 6/30/2010 12:30 AM   
russ_hillis


 

Posts: 139
Score: 100
Joined: 6/18/2010
Last Login: 12/26/2011
From: Coronation, AB, CANADA
Status: offline 		on closer inspection, I think I have this in the wrong forum.  Sorry


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All Forums >> Radios, Batteries, Clubhouse and more >> Digital Camera & Photo Editing >> Help Building a Timed Camera Trigger
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