- Stepper Motor Driver for CNC Shield V4 3D Printer should work with Nano board. It can be used as a driver expansion board for engraving machines and 3D printers. It has a total of 3 slots for A4988 stepper motor driver modules (not included) to drive 3-channel stepper motors. Each stepper motor channel only needs 2 I/O ports, which means 6 I/O ports are enough to drive three stepper motors. This screen can speed up controlling stepper motors in your project.
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