Simple way to detect when somebody passes by?

Discussion in 'The Projects Forum' started by jean28, Jan 20, 2014.

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  1. jean28

    Thread Starter Member

    Sep 5, 2012
    Hello guys,

    I am thinking of a project that involves taking a picture when a person passes a certain area (say, entering my house without any authorization). I was thinking that maybe an easy way to detect the person passing by would be using some type of laser that gets connected to an MCU and, when the laser wave gets interrupted, then the MCU does something else that I want (say, sending me a message telling me that somebody broke into my house).

    Anyways, my question is, is there any mainstream laser that is easy to interface with and does what I want it to do? Also, is there a better way than using these lasers I am talking about?

    Thank you very much :D
  2. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
    You have duplicate threads on this topic.
    Please post in one area only.
  3. tindel

    Active Member

    Sep 16, 2012
    Modern garage door openers do exactly this... and the make sure the motor reverses if something breaks the beam... (I'm not sure if it's IR or lazer). Could you get one of those and modify it?
  4. Wendy


    Mar 24, 2008
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