This IR reflective sensor utilizes a TCRT5000 to detect color and distance. It emits IR rays and then detects if it receives the reflection. This sensor is often used in line following robots, auto data logging on utility meters, because this module can sense if a surface is white or black.
Supply Voltage: 3.3V~5V DC
Detection distance: 1mm – 8mm
Digital Outputs HIGH when an object is detected
On-board indicator LED to show the results
On-board potentiometer to adjust the sensitivity
On-board LM393 chip
Usually used for line following robot