Sensor Measuring Distance Instead of Color

[Trumpkin]

For my line following robot it appears that my QRD1114 sensors are measuring distance instead of color! Here's my schematic:

[Soeren]

Hi,

QRD1114 is a reflective sensor (less distance, more signal), not a colour sensor.

[paulstreats]

you will notice a difference in reading depending upon the color of the target object, but its difficult to differentiate wether the change is due to color or distance as both of these are a factor of ir sensors