QRD1114 Optical Detector Hookup Guide
Contributors:
jimblom
jimblom 
Resources and Going Further
For more information on the QRD1114, be sure to check out the datasheet.
Now that you've got your Arduino sensing proximity, and even color, what project are you going to create? Need some inspiration? Check out some of these related tutorials:
APDS-9960 RGB and Gesture Sensor Hookup Guide
Getting started guide for the Avago APDS-9960 color, proximity, and gesture sensor.
PIR Motion Sensor Hookup Guide
An overview of passive infrared (PIR) motion detecting sensors, and how to hook them up to an Arduino.