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Advice on proximity sensors please?

  • 15-10-2015 10:27pm
    #1
    jackrussell007
    Registered Users Posts: 222 ✭✭


    Evening folks

    hope you can advise, fell free to move my thread if posted in the wrong place.

    I want to try build a device which has some sort of proximity sensor which would trigger a switch if another remote device comes within a certain configurable distance(5-6mtr for example) of the base station. Ideally I'd like the remote device to be very small so I could put it on a very small dog or a guinea pig even, and if that remote device comes within 5 mtr of the base station then a switch is triggered.

    hope I'm not being annoyingly vague, i dont want to give away my million dolla idea.

    anyway what kind of sensor would do that job for me?

    thanks


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