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  • Ease to use, cheap and very different sensor

    posted by margrilo on 02/05/2013
    1 0

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:

    Very cheap product.
    Good quality product, circuit assembly and circuit design.
    Works on both digital or analogic way.
    Has a screw hole for wall mounting
    Has potentiometer to configure sensitivity for digital trigger option
    indicative LEDs

    Cons:

    none documentation at all.
    It has the name "keyes" on it's circuit board
    but even on their website we can't get any technical info about the functioning

    OtherThoughts:

    very nice sensor. For a home automation project as i am doing. this is a very nice sensor to implement security on kitchen or other ambients

    it works just fine and it's is very sensitive only to flame (light) not to any lamp or ambient light.

    you can use both analog mode
    by reading the analog pin
    flame presence -> value ~20)
    no flame -> value ~ 900

    or digital mode, by reading a digital output,
    which is turned on by a comparator chip
    that has the trigger regulated through the potentiometer.

    Bottomline:

    buy this sensor if you intend to built any project that need to be sensitive to flame light.
    somewhere i read that is is somehow sensitive to the temperature, but i couldn't verify that.
    but for projects on home automation or security issue, this will fit just fine.

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