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Daoki 5Pcs Ir Infrared Sensor Module Tcrt5000 Line Track Follower Obstacle Avoidance For Arduino Avr Arm Pic Dc 5V 1 Channel Wit Waterproof Cases Daily Updates And Advanced FeaturesDescription: The Infrared Emitting Diode Of The Tcrt5000 Sensor Continuously Emits Infrared Rays. When The Emitted Infrared Rays Are Not Reflected Back Or Reflected Back But The Intensity Is Not Large Enough, The Infrared Receiving Tube Is Always In The Off State, And The Output End Of The Module Is Low Level, Indicating The Diode Is Always Off; When The Detected Object Appears In The Detection Range, The Infrared Light Is Reflected Back And The
