Ir sensors

[darkjungle]

I am building a line following robot using ir sensors.
i dave a few doubts.
1. How to connect these sensors to uC.
2.Hw to take the sample readings of the sensors for threshhold values

[Admin]

http://www.societyofrobots.com/schematics_infraredemitdet.shtml

and this . . . although a different sensor, the concepts are the same:
http://www.societyofrobots.com/schematics_photoresistor.shtml