motion detector sensor circuit

Posted on Feb 5, 2014

This circuit is a motion detection sensor, this circuit uses a light source and detector as a sensor infrared motion detector. Motion sensor using infrared LED and phototransistor. Because it uses light to the sensor sensitivity can be affected by environmental disturbances, such as wind, waste, or stray light. In this schematic is divided into t

motion detector sensor circuit
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wo schematic transmitter and receiver. Transmitter circuit is controlled by the NE555. NE555 astable multivibrator configuration installed. Infrared LED mounted on the output of a schematic and generate a frequency of 5 kHz. Here is a schematic drawing of motion detection sensor transmitter: At the receiver circuit of the LED infrared light captured by the phototransistor. At normal conditions ie when the sensor does not detect motion, LM1458 output on pin 7 will be value low (0 volts). if the sensor detects movement, the LM1458 IC output on pin 7 will be value high (5 volts). IC LM1458 output can be connected with a speaker, buzzer or alarm. Here I also include a PCB (printed circuit board) of the motion detector sensor circuit and you can also download it.

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