Oak-Pine 2PCS 2Way Tracking Sensor Module - TCRT5000 Tracker Tracking Infrared Reflector Photoelectric Reflective Switch Module Line Detection 4 PIN Module for Smart Car, Auto, Arduino, DIY Project

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 phototransistor is always in the off state. At this time, the output end of the module is high, indicating the diode. Has been in an extinguished state. When the detected object appears in the detection range, the infrared rays are reflected back and the intensity is large enough, and the phototransistor is saturated. At this time, the output end of the module is low, indicating that the diode is lit. Driving ability is strong, more than 15mA. With multi-turn adjustable precision potentiometer, sensitivity. Output form: digital switch output (0 and 1). Small board PCB size: 3.2cm x 1.7cm. Using a wide voltage LM393 comparator. Package: 2 x Tracking sensor module