I am using a stepper motor that rotates one complete revolution in 200 pulses means 200 steps per revolution. now I want it to run 50000 revolution. can I use such big integer (i.e. 200*50000) in arduino, please put your opinion, I really need some expertise.
Use long integer variables. Long integer constants are identified with an "L" after them, e.g. 100000L.
Thanx, anything more if u want to add to it, your welcome.....
If using long integers is not enough, then don't count all of that movement in pulses. Count pulses for each 200 in a revolution, then start over counting the pulses for the next revolution and keep track of the total number of revolutions with a second variable.