SparkFun: QRD1114,Optical Detector/Phototransistor

From eLinux.org
Revision as of 01:34, 1 October 2012 by Ngop (Talk | contribs)

Jump to: navigation, search


Overview

The QRD1114 is a Optical Detector/Phototransistor that can be purchased from SparkFun. The datasheet describes it as:

This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm).

Inputs and Outputs

The QRD1114 takes a supply voltage (Vs) of 0-5 V.

Connecting to the Bone

The QRD1114 connects directly to the Beaglebone via one of the Analog In pins namely ain0-ain5. Also, with the other legs of the device connected to VDD_1.8V and GND respectively.

Code

Sample C Code