Photosensitive Resistor Sensor Module – Light Intensity Detection Module

The Photosensitive Resistor Sensor Module is a compact and accurate light-detection module designed for use in Arduino and DIY electronics projects. It utilizes a light-dependent resistor (LDR) to sense ambient light levels and convert them into analog voltage signals for microcontroller input.

When light intensity increases, the resistance of the LDR decreases, which changes the voltage across the built-in 10kΩ resistor in the voltage divider circuit. This makes it simple for Arduino or similar platforms to read real-time lighting conditions via an analog input pin. The module operates on 3.3V to 5V DC, making it compatible with a wide range of boards.

🔧 Key Features

• Uses a high-sensitivity light-dependent resistor (LDR)
• Analog voltage output proportional to light intensity
• Built-in 10KΩ pull-down resistor
• Compatible with 3.3V and 5V systems
• Ideal for detecting day/night changes
• Ready-to-use for Arduino and Raspberry Pi

📐 Technical Specifications

📌 Applications

• Ambient light detection for smart lights
• Day/night switch systems
• Arduino-based light intensity meters
• Solar-powered light activation circuits
• Robotic and interactive light-sensing systems

💡 Why Choose This Product?

The Photosensitive Resistor Sensor Module is an essential component for any project requiring ambient light measurement. Its plug-and-play capability with popular microcontrollers makes it a hassle-free solution for automation, lighting, and sensing applications.

📦 Package Includes

• 1 × Photosensitive Resistor Sensor Module