Seeedstudio Grove - Infrared Reflective Sensor [並行輸入品]

商品説明

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: 4.5 V - 5.5 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