IR Sensor | Obstacle Avoidance

The IR Obstacle Avoidance Sensor is a simple and inexpensive module for detecting objects within short range using infrared light. It’s widely used in robotics, line-following cars, and automation projects to sense obstacles and trigger actions.

With an adjustable detection distance of 2–30 cm and digital output, it’s easy to integrate with Arduino, ESP8266/ESP32, and other microcontrollers.

Highlights

• Detection Range: 2 cm – 30 cm (adjustable)

• Operating Voltage: 3.3 V – 5 V

• Interface: 3-pin (VCC, GND, DO)

• Adjustable sensitivity with onboard potentiometer

• Compact & lightweight design for easy mounting

• Low cost and reliable for basic automation

💡 Ideal for: Line-following robots, obstacle detection, automation systems, and DIY robotics.