Most of automated robotic projects start from a line-following robot , the Grove Line Finder v1.1 is designed to achieve this task easily and quickly. Those eye-like sensors on the board are actually IR emitting LED and sensitive phototransistor. When the phototransistor detects the reflected infrared light from the IR emitting LED, it will output a digital signal, which changes from HIGH to LOW.
Size: 20mm x 20mm
Power supply: 5V DC
Digital Output Mode: TTL (High when black is detected, Low when white is detected)
