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PIR motion sensor alarm circuit

April 30, 2012 by

Infrared motion detector
The GLMDA is designed to detect the motion of a human or animal both in daylight and at night and to provide a normally open relay output that can be used to activate many types of loads. The GLMDA also has terminals for connecting an optional photocell to prevent activation of the load during daylight. [...]

PIR. motion sensor alarm circuit
A motion detection alarm circuit using a PIR.SENSOR motion detection, if the move is a positive light from the PIR sensor, triggered by a delay circuit, Q1 and relay it to work and hold for about 20 seconds. to apply to the siren to signal a warning to stop, or discarded by the switch S1 [...]


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This entry was posted on April 30, 2012 at 4:48 pm and is filed under alarm. You can follow any responses to this entry through the RSS 2.0 feed.

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