A: The micro stepping the mDraw adopts to control stepping operation is HHH1/16. Thus if you find the speed and ratio are incorrect, please check the setting. Here are the setting chart and the default setting picture.http://wiki.makeblock.cc/index.php?title=Me_Stepper_Driver
DIP switch setting introduction
You can use Dip switch to set the microstep resolution of stepper motor. More details is shown below table.
MS1 MS2 MS3 Microstep Resolution Excitation Mode
L L L Full Step 2 Phase
H L L Half Step 1-2 Phase
L H L Quarter Step W1-2 Phase
H H L Eighth Step 2W1-2 Phase
H H H Sixteenth Step 4W1-2 Phase
