The 4 Channel IR Infrared Tracing Sensor Module reads the boundary between a dark line and a light surface using four independent IR (Infrared) emitter and receiver pairs. The 4 ch ir tracking sensor arduino works on 3.3V to 5V DC and outputs four separate digital signals, one per channel. Detection range adjusts from 1mm to 60cm using onboard potentiometers (small variable resistors).
The 4 ch ir infrared sensor uses IR reflectance sensing, where each channel emits infrared and measures how much bounces back from the surface below. One non-obvious detail — a highly polished white floor can reflect so much infrared that it triggers false detection. The honest limitation is sunlight interference. Strong direct sunlight overwhelms the IR receivers and causes incorrect output readings. Use indoors only. To start, mount the module facing the ground, connect each output to a digital pin, and read HIGH or LOW per channel. StemVolt provide this sensor module tested with confirmed detection across four channels.
Related Products:
- Explore the 8 Channel IR Infrared Sensor Array
Features:
- 4 independent IR channels for wide-footprint line detection array
- Individual potentiometers adjust each channel sensitivity independently
- Digital output per channel directly connects to Arduino digital pins
- 1mm to 60cm range suits both close-scan and elevated chassis builds
- M3 mounting holes for direct robot chassis plate installation
Technical specifications:
| Specification | Details |
|---|---|
| Operating Voltage | 3.3 V – 5 V DC |
| Detection Range | 1 mm – 60 cm (Adjustable) |
| Number of Channels | 4 Channels |
| Mounting Hole | M3 |
| Working Current | ~1 A |
| Operating Temperature | -10°C to +50°C |
 Applications:
- 4 Channel IR Sensor used for Arduino PID line follower robot build
- Automation conveyor uses ir tracking sensor module for path edge detect
- STEM competition uses 4 ch ir infrared sensor for track navigation
- Robot maze uses ir tracking sensor for floor line junction detection
Package includes:
- 1 x 4 Channel IR Infrared Tracing Sensor Module














Sanjay Gupta –
Product as shown
Divya Iyer –
Happy with purchase
Kiran Deshpande –
Used this IR tracking sensor for a line follower robot project, performance was reliable and all four channels detected track lines accurately.
Sourav Kalra –
This sensor module provides accurate line tracking and obstacle detection, making it ideal for engineering projects, robotics applications, and smart vehicle designs
Amarpreet Sodhi –
Received with no damage and safe payment process, while customer support was helpful in answering project-related questions.