IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor for Arduino Smart Car Robot

Description

The IR Infrared Obstacle Avoidance Sensor Module is a compact reflective photoelectric sensor designed for Arduino, ESP32, Raspberry Pi, and smart robot car projects. The module uses an infrared transmitting LED and an infrared receiving photodiode to detect nearby obstacles by sensing reflected IR light. When an object enters the detection range, the onboard LM393 comparator processes the reflected signal and outputs a digital LOW signal through the OUT pin. A built-in indicator LED lights up at the same time, making it easy to see when an obstacle has been detected. The detection distance can be adjusted using the onboard potentiometer, allowing you to set the sensing range from approximat

Key Features

• Infrared reflective obstacle detection sensor
• 3-wire interface: VCC, GND, OUT
• Adjustable sensing distance from 2cm to 30cm
• Digital output signal (LOW when obstacle detected)
• Built-in LM393 comparator for stable operation
• Adjustable sensitivity via onboard potentiometer
• Power LED and obstacle detection indicator LED
• Can connect directly to Arduino, ESP32, Raspberry Pi, STM32, and relay modules
• Suitable for obstacle avoidance robots, smart cars, line following, and black/white surface detection
• Works best with light-colored and larger reflective objects
• Includes 3mm mounting holes for easy installation
• VCC → 3.3V or 5V

Specifications