HALJIA 4-Channel Infrared Tracking Obstacle Avoidance Sensor Module 4CH IR Line Track Follower Sensor PCB Board Compatible with Smart Car/Arduino

Feature: 1.When the module detects obstacles signal, red indicator lights on and OUT port continuous outputs low voltage level signals at the same time2.Effective detect range of 2 ~ 60cm, working voltage of 3.3V-5V. The sensor's detection range can be adjusted by a potentiometer,clockwise to increase and counterclockwise to reduce3.Target reflectivity and shape is the key point of detection distance. Small and black objects have minimum detection distance, while large and white ones have maximum distance4.Output port can be directly connected to the SCM IO port, also can drive a 5V relay module or buzzer module directly,Connection: VCC-VCC; GND-GND; OUT-IO5.Widely used in robot obstacle avoidance, car obstacle avoidance, assembly line counting and black white line tracking6.the comparator uses LM339,work stably;Specifications:Working Voltage: 3.3V-5V DCWorking Current: >1ADetection Distance: 2~60cmDetection Angle: 35°Size:Big Board: 42*40*12mmSmall Board: 25*12*12mmMounting Hole D