IR Infrared Obstacle Avoidance-Line Follower Sensor Module

IR Infrared Obstacle Avoidance-Line Follower Sensor Module

The IR Infrared Obstacle Avoidance-Line Follower Sensor Module is a compact, dual-purpose sensor engineered for robotics and automation projects. Combining infrared emitter and receiver pairs, this module detects obstacles and follows lines reliably while offering adjustable sensitivity and a simple digital interface for rapid integration with microcontrollers like Arduino and Raspberry Pi.

Key Features and Benefits

• Dual functionality: Use the module for obstacle avoidance and precise line following in one unit.
• Infrared detection: IR emitter and receiver pairs detect reflected IR light for reliable performance across many surfaces.
• Adjustable sensitivity: Onboard potentiometers let you fine-tune sensitivity for different floor colors, textures, and ambient light conditions.
• Digital output: Produces a clear high or low logic signal for straightforward reading by microcontrollers and logic circuits.
• Compact, lightweight design: Multiple mounting holes and a small footprint make it easy to install on mobile robots and AGVs.
• Wide voltage compatibility: Operates from 3.3V to 5V DC, compatible with most development boards and controllers.

Technical Specifications

• Sensor type: IR emitter and receiver pairs
• Operating voltage: 3.3V to 5V DC
• Output type: Digital (high/low)
• Adjustment: Sensitivity via onboard potentiometers
• Dimensions: Compact form factor for integration into robotic chassis
• Mounting: Multiple mounting holes for flexible installation
• Weight: Lightweight for mobile platforms

Common Applications

• Robotics: Obstacle avoidance and line following in educational and competition robots.
• Automated guided vehicles (AGVs): Path tracking and course correction for indoor navigation.
• Industrial automation: Edge detection and path monitoring on conveyors and work cells.
• DIY and maker projects: Hobby robots, prototypes, and sensor demos.

Integration and Wiring Guide

This module provides a simple digital output and requires only power, ground, and the output line to communicate with controllers.

• Power: Connect VCC to 3.3V or 5V (depending on your controller). Connect GND to system ground.
• Digital output: Connect the module’s OUT pin to a digital input pin on your microcontroller. The module outputs a logic high or low based on detection.

Example: Arduino Wiring

• VCC -> 5V (or 3.3V if using 3.3V systems)
• GND -> GND
• OUT -> Digital input D2 (or any digital pin)

Example: Raspberry Pi Wiring

• VCC -> 3.3V (recommended to avoid damaging Pi GPIO if module uses 3.3V logic)
• GND -> GND
• OUT -> GPIO input pin (use a pull-up or pull-down in software as needed)

Quick Start Guide

1. Mount the sensor module on your robot chassis using the provided mounting holes at a suitable height from the ground.
2. Wire VCC, GND, and OUT to your controller following the wiring examples above.
3. Power up your controller and read the OUT pin in your sketch or script; the output will change state when a line or obstacle is detected.
4. Adjust the onboard potentiometer while testing to set the sensitivity for your surface and ambient light conditions.
5. Test in real conditions and fine-tune mounting and sensitivity for reliable operation.

Mounting and Adjustment Tips

• Keep the sensor close to the surface for line detection but high enough to avoid debris and uneven terrain.
• Adjust sensitivity in small increments while testing to prevent false triggers from ambient light or reflections.
• For multi-sensor arrays (line followers), space sensors evenly and calibrate each sensor individually.
• Use shielding or a small skirt around the sensor for improved performance in bright ambient light.

Why Choose This IR Sensor Module

This IR Infrared Obstacle Avoidance-Line Follower Sensor Module offers a practical combination of reliability, adjustability, and easy integration. It is an excellent choice for hobbyists, educators, and professionals building robots, AGVs, or automation systems that require compact, cost-effective obstacle detection and line tracking.

Note

Images are for illustration purposes only.