Line Follower Sensor Array 5 Infrared Analog IR Sensor Array

Tracker Sensor has five analog outputs, and the outputted data are affected by the distance and the color of the detected object. The detected object with higher infrared reflectance (in white) will make a larger output value, and the one with lower infrared reflectance (in black) will make a smaller output value. When the sensor gets close to a black line, the output value will become smaller and smaller. So it is easy to get the distance from the black line by checking the analog output (The closer distance between the sensor and the black line, the smaller the output value you will get). Compared to any other module only with logical (HIGH/LOW) output, we can get more precise results from the analog output of this module. In the following section, we are going to present the algorithm in three parts.

Overview

• 5-ch ITR20001/T infrared detector, high sensitivity, anti-jamming, stable performance
• High precision analog output, combined with PID control algorithm, allows the robot tracks lines more stable

Specifications

• Power: 3.3V ~ 5V
• Dimension: 78mm × 18mm
• Detector spacing: 16mm
• Mounting holes size: 3mm
• Detection range: 1cm ~ 5cm

Applications

• Robot line tracking

How to Use

In the case of working with a MCU:

• VCC ↔ 3.3V ~ 5V
• GND ↔ GND
• IR1 ↔ MCU.IO (ch1, analog output)
• IR2 ↔ MCU.IO (ch2, analog output)
• IR3 ↔ MCU.IO (ch3, analog output)
• IR4 ↔ MCU.IO (ch4, analog output)
• IR5 ↔ MCU.IO (ch5, analog output)

Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/Tracker_Sensor