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trigger a camera shorting 2 wires via pixhawk

Posted by andresiko on May 21, 2017 at 4:35pm

Hello all,

I want to trigger my camera shorting 2 wires (soldered to the shutter button of a nex7), and I'm quite lost. Any advice? do I need any extra device or can i just plug it to a pixhawk output port? How to connect?

The camera trigger is 3.1V, and shots a photo everytime is shorted to the ground cable.

Thank you in advance

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Replies

  • andresiko May 22, 2017 at 7:32am

    it's been a while configuring the mission planner, and testing with the multimeter (did not connect the relay nor the camera) and the output voltage measured is only 0.5V. I've to say that this voltage is totally unexpected!

    I assume that the problem is in the configuration, will report back, and of course, thank you for again!

  • andresiko May 22, 2017 at 4:54am

    Hello again, and thank you a lot for your help!

    dont worry about any responsibility, I am the guilty if anything goers wrong xD

    Just came back from the electronic store near my home, bought arelay for 3$, Is for "dual channel" but will be using only one.

    I already did the "hard part" following this guide, and at this precise moment im going to start testing the pixhawk/relay thingy

    will report back!



    Asim said:

    And is there a shutter jack on your camera? If yes what kind?

    I would not recommend opening up the camera and start soldering wires on it unless you know what you are doing. Most cameras have a shutter jack. Get the shutter wires out that way, I will see if I can design you a simple, cheap external relay based on/off shutter system.

    Image result for nex 7 remote jack

    30.22.7.003.0010 - Finder - Sub-Min.DIL - Relay - DPDT - 2A - 3V - DC - coil - AgNi+gold - plated -…
    30.22.7.003.0010 – Finder – Sub-Min.DIL – Relay – DPDT – 2A – 3V – DC – coil – AgNi gold – plated – contact – wash – tight – 200mW
  • andresiko May 22, 2017 at 2:48am

    Hello Asim,

    I am quite messed up with that link, dont really know where to plug what! 

    Lets assume that my ground cable is black, and the "trigger" cable is red, and red cable is 3.1V. When I short them the camera shots a photo. Where shall I plug those cables? black cable to "-" Aux out 6 and red to "S" Aux 6? 3702375890?profile=originalSorry, but I don't want to screw up my camera, Thank you a lot for your time!

    Relay Switch — Copter documentation
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