LDR Sensor Module – Light Detection Module for Arduino and Automation Projects
The LDR Sensor Module detects ambient light using a light-dependent resistor (LDR), making it ideal for applications like automatic lighting, solar tracking, and day-night sensing. With both analog and digital outputs, it’s easy to interface with Arduino, ESP boards, and Raspberry Pi.
 
Key Features:
Light Detection
Senses changes in ambient light using an LDR (photoresistor).
Dual Output
Provides analog output for variable light levels and digital output (HIGH/LOW) using an onboard comparator.
Adjustable Threshold
Sensitivity can be tuned via the onboard potentiometer for custom triggering.
Status Indicators
Onboard LEDs indicate power and digital output status for quick visual feedback.
Easy Integration
3-pin interface (VCC, GND, DO) allows quick connection to microcontroller platforms.
 
Applications:
Day/night sensing systems
Automatic street lighting
Solar panel direction systems
Light-activated alarms or relays
DIY electronics and STEM projects
 
Package Includes:
1 × LDR Sensor Module
 
Specifications:
Operating Voltage: 3.3V – 5V DC
Sensor Type: Photoresistor (LDR)
Output: Analog and Digital
Interface: 3 pins (VCC, GND, DO)
Adjustable Sensitivity: Yes (via onboard potentiometer)
Indicators: Power LED, Digital output LED
 
Dimensions:
Length: 36 mm
Width: 15 mm
Height: 8 mm
 
Weight: 5 g
 
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