is it possible to calculate the number of pulses in both the targets.i want to have the same dimension for both the targets.i just want to have one target with say 2 black strips and the other target with 1 black strip.how do store the predetermined values in the microcontroller so that once the target is acquired i can find out that the particular target is obtained.i have to count the no. of steps at both the target coordinate points as well.please i am desperately in need of help here.