A
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable for competitions
We used this on three different cars. Consistent performance on various tracks.
Description
This 8-channel line-following module enables precise path tracking for robot cars using infrared sensor technology. It features a one-touch automatic calibration system that eliminates the need for manual adjustment, making it suitable for robotics competitions. The board supports both 8-channel and 4-channel tracking modes to accommodate different course requirements. Ensure the infrared sensors are kept clean and free from obstructions for optimal detection performance.
Reviews
Attributes
| Brand | - |
| Category | Root / Electronic Components / Maker DIY |
| Origin | - |
| Sensor Type | Infrared Reflective |
| Channel Configuration | 8-Channel / 4-Channel Selectable |
| Operating Voltage | 3.3V to 5V DC |
| Output Signal | Digital TTL Logic |
| PCB Length | 95mm |
| PCB Width | 19mm |
| Calibration | One-Touch Automatic |
| Indicator LEDs | 8 Signal + 1 Power |
| Effective Distance | 10mm to 30mm |
| Interface | 2.54mm Pin Header |
5 reviews
A
Anonymous
Mar 01, 2026
Rating: 4/5
Good value
Works well with STM32. Had to solder headers myself but expected at this price.
A
Anonymous
Feb 05, 2026
Rating: 4/5
Solid sensor array
Sensitivity is high. Make sure to mount it at the correct height for best results.
A
Anonymous
Jan 20, 2026
Rating: 5/5
Easy to integrate
Documentation was clear. Connected directly to my microcontroller GPIO.
A
Anonymous
Jan 16, 2026
Rating: 5/5
Saved me hours of tuning
The automatic calibration is a game changer. No more potentiometers to tweak.
5 FAQ
Q: Can it detect white lines on black background?
A: It is optimized for black lines on white background. White line detection requires logic inversion.
Q: Does it come with connecting wires?
A: No, the module comes without cables. Standard Dupont wires are recommended.
Q: What is the current consumption?
A: Typical current draw is around 20mA with all LEDs active.
Q: Is this compatible with Raspberry Pi?
A: Yes, it works with Raspberry Pi GPIO using 3.3V logic levels.
Q: How do I switch to 4-channel mode?
A: You can simply use the first 4 pins. The firmware handles the rest.
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