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Motion Detector Light Alarm Wiring diagram Schematic
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Motion Detector Light Alarm Wiring diagram Schematic
This is the simple Motion Detector Light Alarm Circuit Diagram. This schema is very sensitive and can be placed in a room to detect the movement of a person up to 2 metres from the unit.The schema is basically a high-gain amplifier (made up of the first three transistors) that is turned on by the LDR or photo Darlington transistor. The third transistor charges the 100u via a diode and this delivers turn-on voltage for the oscillator. The LDR has equal sensitivity to the photo transistor in this schema.
Motion Detector Light Alarm Circuit Diagram
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