Ask about code of QTR-8RC sensor

plz , how can I make an AVR code for this sensor
give me links or explain plz


You can find our AVR library and example code (and lots of other useful documentation) for this sensor under the “Resources” tab of its product page.

In particular, sample code for using this sensor can be found in the “Pololu QTR Sensor Functions” section of the Pololu AVR C/C++ Library User’s Guide.