KY-018 Photoresistor LDR Light Sensor Module

The KY-018 Photoresistor LDR Sensor Module is a compact and highly reliable light detection board designed for makers, students, and electronics enthusiasts. At its core, it features a Light Dependent Resistor (LDR) that decreases its internal resistance as ambient light intensity increases. Integrated with a 10K ohm resistor to form a simple voltage divider circuit, this module outputs an analog voltage proportional to the surrounding light levels, making it an essential component for any project requiring environmental light monitoring.

Perfect for building smart home automation systems, IoT devices, or automated garden lighting, this sensor provides seamless compatibility with a wide range of microcontrollers, including Arduino, Raspberry Pi, and the ESP32. Whether you are designing an automated street lamp that turns on at dusk, a laser security tripwire, or a solar tracking system, the KY-018 offers accurate and real-time analog readings with minimal setup required.

Features:

• Wide Voltage Range: Operates efficiently between 3.3V and 5V DC, ensuring easy integration with standard logic levels.
• Analog Output: Provides a continuous analog voltage signal that accurately reflects changes in ambient light intensity.
• High Sensitivity: Highly responsive to a broad spectrum of visible light, making it ideal for day/night and light threshold detection.
• Compact Form Factor: Small footprint designed for space-constrained DIY and robotics projects.
• Easy Interfacing: Standard 3-pin configuration (Signal, VCC, GND) for quick and reliable breadboard or jumper wire connections.

Package Includes:

1 x KY-018 Photoresistor LDR Sensor Module