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reprap - How do I use MEGA pin number designations rather than RAMPS pin numbers in marlin - 3D Printing Stack Exchange
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marlin define pins as mega pin #s, not as ramps pin #s · Issue #9055 · MarlinFirmware/Marlin · GitHub
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Configuring Endstops on Ramps 1.4 With Marlin Firmware - @section Homing | Arduino, 3d printer diy, 3d printing
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