IR Infrared Obstacle Avoidance Sensor Module – Adjustable Distance Detection for Arduino, Robotics & DIY Projects

The KY-018 LDR Light Sensor Module is a compact and reliable light detection sensor designed to measure ambient light intensity using a Light Dependent Resistor (LDR). It is widely used in Arduino, Raspberry Pi, ESP32, and other microcontroller projects for automatic lighting systems, brightness monitoring, and smart automation applications.

The module changes its resistance based on the amount of light falling on the photoresistor, allowing your microcontroller to detect variations in brightness. Its simple 3-pin interface makes it easy to connect and integrate into DIY electronics, educational projects, and industrial prototypes.

Whether you're building an automatic street light, a smart home system, or a light-sensitive alarm, the KY-018 offers dependable performance with low power consumption and quick response to changing light conditions.

Key Features:

• High-quality Light Dependent Resistor (LDR) for ambient light sensing
• Measures changes in light intensity accurately
• Simple 3-pin interface for easy wiring
• Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers
• Low power consumption and compact design
• Fast response to changing light levels
• Ideal for automation, robotics, and DIY electronics
• Easy to install and program

Specifications:

• Model: KY-018
• Sensor Type: Light Dependent Resistor (LDR)
• Operating Voltage: 3.3V – 5V DC
• Output Type: Analog Signal
• Interface: VCC, GND, Signal
• Detection: Ambient Light Intensity
• Module Size: Compact PCB Design
• Compatibility: Arduino, Raspberry Pi, ESP32, STM32, and other development boards

Package Includes:

• 1 × KY-018 LDR Light Sensor Module

Applications:

• Automatic street light systems
• Smart home lighting control
• Light intensity monitoring
• Solar tracking projects
• Robotics and automation
• Educational and STEM projects
• DIY electronics and embedded systems
• Energy-saving lighting solutions