Seeed 101020174 Grove - Infrared Reflective Sensor 4.5-5.5V

The Grove - Infrared Reflective Sensor from Seeed Studio allows your Pi or Arduino to sense the brightness reflected from a surface. This can be applied to sensing the presence or absence of an object, for example whether a door is open or closed or maybe as a contactless end-stop for a CNC machine. Or it can be used to detect changes in brightness such as black and white markings on a rotating disc. A very useful sensor.

* Operating voltage: 4.5 to 5.5V DC * Digital output, 0 or Vcc * High resolution sensor; min. detectable width: 1mm black line * Effective distance：4 to 15mm * Indicator LED on board * Sensitivity adjustable via potentiometer * Small Grove 1X1 compatible interface

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