DRV8825 Stepper Driver DRV8825 is for high torque stepper motor like Nema17 60mm. Compared with A4988, DRV8825 can stand for up to 45VDC power supply and output 2.5A per phase. It's same with A4988 as bipolar stepper driver BUT DRV8825 gives you better resolution, full, half, 1/4th, 1/8th, 1/16th an...