... consumption 3.High microstep,high torque 4.low noise,broad voltae range, Characteristics:1.DC power input type ... motor direction input, voltage level touched off,high towards, low reverse7,REST+,REST-: motor free The interface seethe right ... or working current over 3A, fix the module on big metal shell , or use axle flows fan dispels the heat, ... -bit DSP with high performance, high torque, and low noise