Grove - Infrared Reflective Sensor

This product is retired, please consider the new version Grove - Infrared Reflective Sensor V1.2 as your alternative choice.

The reflectivity of infrared light varies with the color and distance of the reflecting surface. According to this principle, Grove - Infrared Reflective Sensor utilizes a RPR220 reflective photosensor module to detect color and distance. When a light-colored object approaches,the signal intensity received by infrared reflective sensor increases and the indicator LED on board turns red. When a dark-colored object approaches, the intensity decreases and the LED turns off. 

This sensor is a basic and widely used part in applications such as line-following cars, rotary speed detection, auto data logging on utility meters or other situations where color or distance contrast is sharp.

Features

• Operating voltage: 3.3 V - 5 V

• Digital output, 0 or VCC

• High resolution sensor;minimum detectable length: 1mm black line

• Effective distance：4-15mm

• Indicator LED on board

• Sensitivity adjustable via potentiometer

• Small Grove 1X1 compatible interface

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.