Infrared Obstacle Avoidance Sensor Module for DIY Robots & Smart Cars

Upgrade your robotics and DIY electronics projects with this compact Infrared Obstacle Avoidance Sensor Module. Designed for smart cars, line-following robots, and automation projects, this module delivers reliable black/white line detection and obstacle sensing in a tiny 3.1cm form factor — perfect for makers, hobbyists, and students alike.

Key Features

Adjustable Detection Distance: Ranging from 2 cm to 30 cm, the sensitivity can be fine-tuned via the onboard potentiometer — turn clockwise to increase detection range.
Wide Detection Angle: 35° detection angle ensures broad coverage for reliable obstacle and line sensing.
Dual Functionality: Detects both obstacles and black/white line contrast, making it versatile for a range of robotics applications.
Compact & Lightweight: At just 3.1 cm, this module fits neatly into tight project builds without adding unnecessary bulk.
Easy Integration: Plug-and-play compatibility with Arduino, Raspberry Pi, and other popular microcontroller platforms — no complex setup required.
Photoelectric Sensing Technology: Uses infrared (IR) emitter and receiver pairs for fast, accurate, and interference-resistant detection.
Built-in Indicator LED: Onboard LED provides instant visual feedback when an obstacle or line is detected.

Technical Specifications

Detection Distance: 2–30 cm (adjustable)
Detection Angle: 35°
Module Size: ~3.1 cm
Operating Voltage: 3.3V – 5V DC
Output: Digital signal (HIGH/LOW)
Compatible with: Arduino, Raspberry Pi, STM32, and similar platforms

Great For

Line-following robot cars
Obstacle detection and automatic avoidance systems
DIY smart car and robotics kits
Home automation and object proximity sensing
STEM education and electronics learning projects

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Frequently Asked Questions

Q: What does the infrared obstacle avoidance sensor module do?

A: This infrared obstacle avoidance sensor module uses an IR emitter and receiver to detect objects and distinguish between black and white surfaces. It outputs a digital signal to your microcontroller, making it ideal for line-following robots, smart car builds, and proximity-sensing automation projects. The detection distance is adjustable from 2 cm to 30 cm via the onboard potentiometer.

Q: How do I adjust the detection distance on this sensor module?

A: The detection distance is easily adjusted using the onboard potentiometer. Turning the potentiometer clockwise increases the detection range (up to 30 cm), while turning it counter-clockwise decreases the range (down to 2 cm). This makes it simple to calibrate for your specific project environment without any additional components.

Q: Is this infrared sensor module compatible with Arduino and Raspberry Pi?

A: Yes! This module is fully compatible with Arduino, Raspberry Pi, STM32, and most other popular microcontroller and single-board computer platforms. It operates on 3.3V–5V DC and outputs a clean digital HIGH/LOW signal, so it integrates seamlessly into your existing project wiring with minimal setup.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.