LDR Sensor Module

The LDR Sensor Module is a Light Dependent Resistor (Photoresistor) sensor designed to detect changes in ambient light intensity. It features an LM393 voltage comparator, adjustable sensitivity, and both digital (DO) and analog (AO) outputs, making it ideal for Arduino, ESP32, Raspberry Pi, automatic lighting systems, robotics, and DIY electronics projects.

Features

• Full Name: LDR (Light Dependent Resistor) Sensor Module
• Detects ambient light intensity
• Adjustable sensitivity
• Digital and analog outputs
• Onboard LM393 comparator
• Power and status indicator LEDs
• Compact PCB design
• Easy interface with microcontrollers

Specifications

Pin Configuration

Note: The digital output (DO) changes state when the ambient light level crosses the threshold set using the onboard potentiometer. The analog output (AO) provides a variable voltage proportional to the light intensity.

Applications

• Automatic street lighting
• Smart home lighting control
• Day/night detection
• Arduino projects
• ESP32 and Raspberry Pi projects
• Robotics
• Light intensity monitoring
• Educational electronics
• DIY electronics projects

Advantages

• Adjustable sensitivity
• Dual analog and digital outputs
• Low power consumption
• Fast response
• Easy microcontroller interface
• Compact and lightweight
• Cost-effective solution

Size

Package Includes

• 1 × LDR Sensor Module

Note: This module is intended for ambient light detection and is not suitable for precise lux measurements. Direct sunlight or strong artificial lighting can affect the sensor readings. Adjust the onboard potentiometer to set the desired switching threshold for your application.