The DRV8825 Stepper Motor Driver Carrier is an upgraded driver that is compatible with A4988 stepper drivers. This means it’s a drop-in replacement for your current stepper motor drivers and can offer double the stepping resolution. The best part is that they are higher current as well! Instead of the 2A max of the A4988 you can now have 2.2A. Double the stepping resolution and 10% higher current should make this an easy upgrade for any 3D printer.
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