... the back of the Arduino code, direct drive motor The advantages compare to 4988 : 1, the ... smaller, lower heat, heat better. Parameters: Size: 15 mmx20mm (the same as 4988) Drive current: 2 ... 45 V 2.5 A stepper motor; 2, only simple step by step and direction control interface; 3, six ... maximum current output, thereby gaining a higher step rate; 5, automatic current attenuation pattern detection/choice ...