... the module2.GND:DC power cathode3.A+,A-:Stepping motor one winding4.B+,B-:Stepping motor other winding5.CP +,CP -:Stepping pulse input+5V ... effective rising edge duration >10μS)6.CW +,CW-:Stepping motor direction input, voltage level touched off,high towards, low reverse7 ... .REST+,REST-: motor free , NOTE:1.When ambient temperature is high or working ...