salem
if u want how u can drive a bipolar stepper i explain to u
the bipolaire stepper has 4 wire for 2 winding
they are a circuit to drive it l297 and l 298
the principe is simple put one ^pole in the + and the other in - the motor will turn with one step
if u exite two winding together the motor will turn with half step
i hope that i anser ur question