Overview
This 7-channel line tracking sensor module uses infrared reflective detection to identify line contrast (such as black and white surfaces). Each channel outputs a digital signal, making it suitable for integration with common microcontrollers.
Key Features
- 7-channel digital output
- Independent sensitivity adjustment per channel
- Built-in 7 LED indicators for real-time status
- Infrared reflective detection principle
- Standard 2.54mm pin header for easy connection
Technical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 5V DC |
| Operating Current | Approx. 60mA (environment dependent) |
| Signal Output | 7-channel digital output |
| Indicator | 7 LED indicators |
| Detection Distance | 10mm ~ 50mm |
| Recommended Height | 15mm ~ 25mm |
| Interface | 2.54mm pitch pin header |
Usage Notes
- Powering with 3.3V may reduce detection distance and sensitivity
- 5V is recommended for normal operation
- Adjust each channel according to surface color and ambient light conditions
Applications
- Line-following robot cars
- Robotics experiments and development
- Arduino / Raspberry Pi projects
- STEM education and prototyping
What Makes It Practical
Compared to lower channel count modules, a 7-channel layout allows more sampling points across the track, which can help improve line detection stability in typical line-following applications (depending on system design and tuning).
