Timed Shutter Control

Discussion in 'The Projects Forum' started by NNC, Feb 8, 2013.

  1. NNC

    Thread Starter New Member

    Feb 8, 2013
    1
    0
    I am trying to figure out how to build a super simple build. I have extremely little electronics experience so I could use some advice.

    I have a camera trigger with a two stage button and I want to modify it to trigger ever n seconds. I only need to trigger the second stage and bypassing the trigger is just a matter of connecting two contacts.

    I would simply like to replace a switch with a variable timer. I want to take pictures as quickly as possible, so I want to vary the time in order to dial in the optimal timing. So I am looking for this result:

    Press a button
    wait n sec
    connect contact a with contact b
    wait n sec
    connect contact a with contact b
    ...
    Press a button
    Stop connecting

    I have been searching online but can't seem to find the right thing. I think I should be using some 555 timer build?

    I apologize if this sort of question has already been covered.
     
  2. #12

    Expert

    Nov 30, 2010
    16,343
    6,828
    Yes, it's a 555.
    Here's one set up for 12 volts.
    1/2 to 1 1/2 seconds off, 25 milliseconds on.
    You start it with the power switch and you stop it with the power switch.
     
    Last edited: Feb 8, 2013
Loading...