Picture of Building an Infrared Sensor
Here is how to build and Infrared Sensor using the QRD1114 
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Step 1: Parts Needed

One of : QRD1114  Light Sensor

One of : 220 Ohm Resistor

One of : 10 K Ohm Resistor

One of : 3 Wire Cable

Step 2: How it works

Picture of How it works

Step 3: Building the Infrared Sensor

Picture of Building the Infrared Sensor

Step 4:

Picture of