Line finders basically consist of an IR LED as well as a IR transistor helping the robot follow a particular line.
Use the Grove Line finder module to design yor own line following robot. It consists two parts - an IR emitting LED and an IR sensitive phototransistor. It can output a digital signal to a microcontroller so the robot can reliably follow a black line on a white background, or vice versa.
- Grove compatible interface
- Small size
- 5V DC power supply
- Indicator LED
- Digital output
- Distance adjustable
Please visit Seeed Studio's wiki page for more info about this product.