The dual-channel line tracking module integrates two sets of reflective infrared pair tubes, through which you can make a robot intelligent line-tracking project, allowing your robot to act according to your requirements.
Specifications
Connections: RJ11 4P4C
Power: 3.3V
Valid distances: 2~12mm
Core IC: WS2812
The black line outputs a low level, white line outputs a high level   Â
You can find the introduction of this product following this link
https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05019
