Aerial Photography and Video Discuss the growing field of aerial photography and aerial video right here!

Help Building a Timed Camera Trigger


Old 06-29-2010, 03:32 PM
Senior Member
Thread Starter
Join Date: Jun 2010
Location: Coronation, AB, CANADA
Posts: 139
My Gallery
My Models
My Feedback
Default Help Building a Timed Camera Trigger

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 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.

(sorry for the repost from the digital camera forum)

russ_hillis is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy