cheap stepper motor driver, current:0.9A-3A,CW230 quick ... 32,1/644.Protect form : Overheated protect, lock automatic half current ,error connect protect5.Dimension:115mm*72mm*32mm6. Weight:<300g ... : if control machine not send out signal in half second, driver enter half current state of automatically for electricity saving, the ... )0.91.21.51.82.12.42.73 CW230 cheap stepper motor driver, current:0.9A-3A