LDR Sensor Module – Light Dependent Resistor Module for Arduino and Light-Sensing Projects
The LDR Sensor Module is a compact and easy-to-use module that detects ambient light levels using a photoresistor (LDR). It is perfect for automatic lighting, day-night detection, solar tracking systems, and other light-sensitive applications. Fully compatible with Arduino, ESP, Raspberry Pi, and other development boards.
 
Key Features:
Light Sensing Using LDR
Detects changes in ambient light intensity—ideal for daylight-sensitive projects.
Analog & Digital Output
Provides both analog signal (via LDR) and digital HIGH/LOW output via onboard comparator.
Adjustable Sensitivity
Onboard potentiometer allows you to set the light threshold for digital output.
Onboard Indicators
LED indicators for power and digital signal make it easy to monitor activity.
Plug-and-Play Interface
3-pin output (VCC, GND, DO)—easily integrates with microcontrollers.
 
Applications:
Automatic street lighting
Day/night detection systems
Solar tracking for panels
Light-following robots
Smart agriculture
DIY electronics and STEM learning
 
Package Includes:
1 × LDR Sensor Module
 
Specifications:
Operating Voltage: 3.3V – 5V DC
Output Type: Analog and Digital
Sensor Type: Light Dependent Resistor (LDR)
Adjustable Threshold: Yes (via onboard potentiometer)
Indicator LEDs: Power and digital output status
Interface Pins: VCC, GND, DO
 
Dimensions:
Length: 36 mm
Width: 15 mm
Height: 8 mm
 
Weight: 5 g
 
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