IR Obstacle Sensor
Short-range infrared obstacle detection module for counters and robots.
AI Ready Overview
Quick Summary
IR Obstacle is a proximity sensor commonly used in FYP and embedded projects. It is best for obstacle detection and object counter, with wiring and testing planned around Arduino, ESP32.
Difficulty
Beginner
Time Required
1-3 days for basic wiring and sample code; 1 week if used inside a complete FYP prototype
Cost
RM3-RM10 module range in Malaysia; full project cost depends on scope.
Components
IR Obstacle, Arduino, ESP32
Overview
What is IR Obstacle?
IR obstacle sensors detect nearby objects using reflected infrared light. They are cheap and common in robot, counter and line-detection style prototypes.
Engineering Reference
Quick Specs
| Operating Voltage | 3.3V / 5V |
|---|---|
| Interface | Digital GPIO |
| Difficulty | Beginner |
| Typical Malaysia Price | RM3-RM10 |
| Best For | Obstacle detection, Object counter |
Real Usage Notes
Suitable / Not Suitable
Suitable for
- ✓ Obstacle detection
- ✓ Object counter
- ✓ Robot demo
Not suitable for
- ✕ Long distance
- ✕ Black/reflective objects reliability
- ✕ Outdoor sunlight-heavy use
Build Planning
Difficulty
IR Obstacle is rated Beginner. Plan around 1-3 days for basic wiring and sample code; 1 week if used inside a complete fyp prototypedepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.
Build Planning
Time Required
1-3 days for basic wiring and sample code; 1 week if used inside a complete FYP prototype
Malaysia Price Guidance
Cost
Typical module price range: RM3-RM10. This is component guidance only; a complete FYP cost depends on controller, sensors, casing, display, app/dashboard, documentation and timeline.
Connections
Pinout
VCC
Power input. Check whether the module expects 3.3V or 5V before wiring.
GND
Common ground with the controller and external supply.
Digital GPIO
Main Digital GPIO connection used by the module.
IO
Additional signal pins depend on the exact module variant.
Platform Notes
Wiring Guides
IR Obstacle with Arduino / ESP32
Connect power, ground and the Digital GPIO signal lines. Use level shifting when a 5V module connects to a 3.3V controller.
| IR Obstacle VCC | 5V or module-rated supply |
|---|---|
| IR Obstacle GND | Controller GND |
| Signal pins | Digital GPIO |
Fix Common Problems
Troubleshooting
Troubleshooting
Common Mistakes
FYP Ideas Using IR Obstacle
Related Projects
Compare Options
Alternative Components
Student Questions
FAQ
Is IR Obstacle good for FYP projects?
Yes, IR Obstacle is suitable for FYP work when the project matches its limits: Obstacle detection and Object counter.
What is the most common IR Obstacle mistake?
Expecting ultrasonic-like range