LDR Sensor 4 Pin Module

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Sold By: HatchnHackSKU: B16-34

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The LDR Sensor Module is used to measure light intensity and detect the presence of light. In the presence of light, the module's output increases, while in the absence of light, it decreases. With a potentiometer, the signal detection's sensitivity can be changed. It has LM393 devices consist of two independent low voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.


  • It can detect ambient Brightness and light intensity
  • It has adjustable sensitivity 
  • Its operating voltage is 3.3V-5V
  • It has LM393 IC 
  • It has four pins- AO, DO, GND, VCC
  • It has an LDR
  • It has one hole for mounting purpose and the diameter of the hole is 3.5mm
Type LDR Sensor
Voltage  3.3V-5V
No of hole 1
No of Terminal 4
Inbuild IC  LM393
Dimension 36x13x7mm
Make India

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