The IR Infrared 3-Pin Obstacle Avoidance Sensor Module is a compact electronic component that detects objects placed in front of it using reflected infrared light. It is a favourite building block for makers, students and hobbyists who want to add simple object detection to robots, automated gates, smart bins and other DIY electronics or garden-automation projects. With only three pins it is easy to wire to popular microcontroller boards.
Key features
- Infrared (IR) detection for spotting nearby obstacles without contact.
- Simple 3-pin connection that keeps wiring quick and tidy.
- Small, lightweight board that fits neatly on robots and breadboards.
- Commonly compatible with widely used microcontroller and maker platforms.
Typical uses
- Obstacle-avoiding robots and line/path projects.
- Automatic doors, gates and barrier triggers.
- Smart trash bins and proximity-activated devices.
- Learning kits, school and university electronics experiments.
How to choose / tips
- Confirm your controller board uses a matching operating voltage before wiring.
- Mount the sensor where its IR window faces the expected obstacle clearly.
- Adjust positioning to reduce false triggers from very dark or shiny surfaces.
- Buy a spare unit if your project depends on continuous detection.
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