Seeed 101020009 Grove - Line Finder / Follower IR LED 5V

The Grove Line Finder / Follower from Seeed Studio uses an infra-red emitter and photo-transistor pair to detect the contrast between a black line on a white background and vice versa. The line following robot has become a staple project for the robot builder and this sensor is a good place to start. You can use one sensor or make an array of them, the choice is yours. An onboard potentiometer lets you adjust the sensitivity and an LED provides feedback.

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• Grove compatible interface
• Small size
• 5V DC power supply
• Indicator LED
• Digital output
• Distance adjustable