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LDR Based Relay Board

Product Code: MP-101
Availability: In Stock

Here we are having two Main Part

    Sensor part  
    Universal Single Relay Board

Sensor Part

                         Here we used LDR Sensor Board. LDR is a light-controlled variable resistor. The resistance of a LDR decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. A LDR can be applied in light-sensitive detector circuits, and light- and dark-activated switching circuits.

Universal Single Relay Board

                     The Single Relay Board can be used to turn lights, fans and other devices on/off while keeping them isolated from your microcontroller. The Single Relay Board allows you to control high-power devices (up to 10 A) via the on-board relay.


    Control high-power devices up to 7 A with a simple high/low signal.
    Light Sensitivity Adjustable using POT.
•    Provides isolation between the microcontroller and device being controlled.
    Screw terminals for relay connections.
    LED indicator used for visual checking.
    Used in 12 VDC applications.
•    We can use any sensor to this Universal relay Board.(PIR, LDR, Obstacle sensor).

Working Principle

      LDR Based Relay Board used to turn on/off circuits, lights, fans, etc when there is change in incident light intensity in LDR Sensor part.



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