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Motion sensor with audio response

Discussion in 'Sensors and Actuators' started by D MacQuarrie, Jun 9, 2013.

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  1. D MacQuarrie

    D MacQuarrie

    Jun 7, 2013
    :) I need a device that will detect motion (up to 3 or4 meters) during daylight hours .This would need to switch on a piece of music or speech for a set time or until the next motion is detected. This is like the display screen that goes on when you pass by in a store.
    I would be pleased if anyone can helps or point me in in the direction of circuit diagrams.
  2. glewis721


    Apr 30, 2013
    use an ultrasonic sencor paired with an arduino...
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    The big question is "what sort of motion?", and "motion of what?"

    Ultrasonic may not be the best unless the motion changes the distance between the object and the sensor.

    PIR sensors are more typically used in this sort of application but they too have drawbacks.

    More information would be useful.
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