... ,1/64,1/128,1/2561/5,1/10,1/25,1/50, ... (Rising edge effective rising edge duration >10μS)6,CW +,CW-:Stepping motor direction input ... metal shell , or use axle flows fan dispels the heat, to make the module ... half current state of automatically for electricity saving, the phase current of the winding of the electric3, ... step motor drivers using new 32-bit DSP with high performance, high torque, and low noise