🖨️ Upgraded 3D Printer Engraving Expansion Board Kit: Controller CNC Shield V4+Nano 3.0 Board with A4988 Driver and USB Cable - Compatible with Arduino Review

This board saved me a lot of robot animation work. Markotime's comment was very helpful. When using this board, the pins must be reversed.

This board saved me a lot of robot animation work. Markotime's comment was very helpful. When using this board, the pins must be reversed.

The microcontroller does not have enough memory to store GRBL, so it is not compatible. The pins of the stepper motor are not marked. There is no accompanying documentation, the STEP/DIR pins are swapped, which requires modifications to the GRBL library files.