Arduino Nano CNC Shield V4 with grbl PIN ERROR
The CNC Shield V4 came with some factory errors being a cloned version for china, the step puls and step direction pin numbers have been alternated, this article also show how to correct it. Just modify one file. modify cpu_map.h file at line 39 #define X_STEP_BIT 5 // Uno Digital Pin 2 #define Y_STEP_BIT 6 […]