2 phase stepper motor AB know, but do not know A+ and A-, B+ and B-, the reverse of the impact of it?
Test, test, turn, and answer, there is no big problem, nothing more than do not turn or reverse.
In other words：The A + A- reverses the motor inversion.The B+ B- reverses the motor inversion.
2 phase stepper motor, if you want to reverse, the two lines of A or B, the two line of the reverse line on the line.
