The Video User Guide of Stepper Motor and Me 2H Microstep Driver V1.0
Makeblock 2H Microstep Driver is a type of 2-phase hybrid stepper motor driver. It is designed for driving 2-phase hybrid stepper motor of all kinds with 20mm to 42mm outside diameter and less than 2.0A phase current.
Average current control, 2-phase sinusoidal output current drive
Supply voltage from 12VDC to 36VDC
Opto-isolated signal I/O
Overvoltage, under voltage, overcurrect, phase short circuit protection
8 subdivision option: 1/2/4/8/16/32/64/128
8 channels output phase current setting
Offline command input terminal
Electrical input signal is TTL compatible
Low noise and vibration
Motor torque is related to speed, but not related to step/revolution
High start speed
High holding torque at high speed
Easy to install on Makeblock parts
Working Temperature: -10~45℃
Stocking Temperature: -40~70℃
Not condensation, no water droplets
Prohibition of combustible gases and conductive dust
May you are confusing about which color cable on the stepper motor should be connected to which port on the driver (A+,A-, B+,B-), Here is a guide of it
1. Our stepper motor has two phase. So it doesn't matter you change the connection order between phase A and phase B. Which I mean Black and Green could be connected to A orB, Red and Blue could be connected to B or A. And yes, it would change the motor direction.
2, And, A+:Black A+:Green A-:Green or A-: Black Both of the connection type are OK.
3, There is only one rule you need to follow, which is you can't mix them together.
For example, this kind of connection type is wrong, it would make damage to the motor.