Introduction:
A motion detector is a device that contains a motion sensor that detects moving objects and transforms the detection of motion into an electric signal
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Group members:
Riku Sorsa
PRESENTATION
References:
http://www.ehow.com/how-does_4596955_motion-sensor-work.html
http://illumin.usc.edu/assets/media/160/1000pxSonar_Principle_EN.svg.png
http://images.machinedesign.com/images/archive/72829sensorsens_00000051108.jpg
http://www3.panasonic.biz/ac/e/control/sensor/thumbnail/amn31111.gif
http://www.panasonic-electric-works.com/cps/rde/xbcr/eu/ds_61804_en_pir_motion_sensor.pdf
