
Grove - IR Line Follower Sensor V3.0
SKU
101021132
It is designed for use with line-follower robots. It has 2 IR LEDs and 2 IR sensitive phototransistors. The sensors on the board that look like eyes are actually IR LEDs and sensitive phototransistors. When the phototransistor detects infrared light reflected from the IR LEDs, it outputs a digital signal that changes from high to low.
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