8-Channel Infrared Detection Tracking Sensor Module

• TCRT5000 infrared photoelectric sensor on each of the 8 line-following modules
• Sensing Distance：12mm , 8mm will be the best
• Adopts I2C ports which only occupies 4 pins of the MCU
• Positioning holes on the board for easy assembly

The 8-Channel Infrared Detection Tracking Sensor Module infrared photoelectric switch adopts a high transmit power infrared photodiode and a highly sensitive phototransistor. It works by applying the principle of objects' reflecting IR light – the light is emitted, then reflected, and sensed by the synchronous circuit.

Then it determines whether there exists an object or not by the light intensity. It can easily identify black and white lines. In other words, the different conduction levels of the phototransistor when it passes over black and white lines can generate different output voltages. This module is an infrared tracking sensor one that uses a TRT5000 sensor. The blue LED of TRT5000 is the emission tube and after electrified it emits infrared light invisible to human eye. The black part of the sensor is for receiving; the resistance of the resistor inside changes with the infrared light received.