... 2.low power consumption 3.High microstep,high torque 4.low noise,broad voltae range ... CW-:Stepping motor direction input, voltage level touched off,high towards, low reverse7,REST+,REST-: motor free The ... right picture.NOTE:1, When ambient temperature is high or working current over 3A, fix the module ... Digital step motor drivers using new 32-bit DSP with high performance, high torque, and low noise