The Photoresistor LDR Sensor Module is a compact light-sensitive sensor designed to detect changes in ambient light intensity. It uses an LDR (Light Dependent Resistor) whose resistance varies according to the amount of light falling on its surface. The module provides a simple 3-pin interface (S, +, -) and can be easily connected to Arduino, ESP32, Raspberry Pi, and other microcontroller boards for light-sensing applications. Features Uses a light-sensitive LDR photoresistor Detects changes in light intensity Simple 3-pin interface: S, +, - Compact and lightweight design Easy to connect and use Suitable for microcontroller and DIY projects Ideal for automatic light-sensing applications Applications Light intensity measurement Automatic lighting systems Street light automation Day/night detection Light-sensitive switches Smart home projects Robotics and automation Arduino and ESP32 projects DIY electronics projects Package Includes 1 × Photoresistor LDR Sensor Module