Sensing Lasers with Solar Panels

Discussion in 'The Projects Forum' started by aarjavmalhotra, Feb 4, 2013.

  1. aarjavmalhotra

    Thread Starter New Member

    Feb 4, 2013
    Hey everyone !

    I need to make some sort of sensors to detect shots from a 1mW laser in a roughly 6cmx6cm region. I was thinking of using a solar panel connected to a buzzer for this. Do you think this is a reliable approach ? Also it would be great if someone can help out with the circuit, noob here.

    Thanks !
  2. crutschow


    Mar 14, 2008
    The problem may be that you won't get a detectable signal if only one of the solar panel cells are illuminated by the laser. You would likely have to try it by using a voltmeter to see if you can detect any output voltage.

    Is there going to be any significant ambient light?

    What is the laser color (wavelength)?