Phororesistor Use with X-Band Dectector? Need help.

Discussion in 'The Projects Forum' started by arhy, Nov 6, 2012.

  1. arhy

    Thread Starter New Member

    Nov 6, 2012
    Hi Everybody!

    I am new to this and also a newbie when it comes to electronics. I am trying to figure out how to make a circuit light dependent.

    I have a x-band detector powered by a 5V battery thru USB. The x band sends a signal to a circuit board that triggers a gopro camera on. I am trying to make the setup light dependent. Basically, I want the signal from the x-band detector to get to the gopro circuit board ONLY if it's light outside. I want the camera to turn on in daylight and not operate at nighttime. If there's no signal from the x-band detector, the camera will not trigger.

    The question: Can I just add a photoresistor in series with the x band - between the x-band and the circuit board - to make it light dependent? Would the photoresistor block the signal from the x-band detector at night time?

    I am using a paralax x band detector. Model is here.,ProductName

    Hope you understand my question. I am trying to make the setup as easy as possible since I'm gonna be using it outside in a box.

    Thanks in advance for your help!
  2. crutschow


    Mar 14, 2008
    Yes a photoresistor with a low enough resistance when illuminated, in series with signal from the x band detector to the camera, should work.