Due to the preloaded Arduino Bootloader and the integrated USB UART converter with mini-USB connector, the module can directly be used with the Arduino IDE as an e.g. Arduino Mega 2560 board. Main ...

I recently upgraded my shapeoko from an Arduino Uno to a mega and I am using a CNC Stepper Shield designed for the Uno. I realized that the pinout wasn't the same with GRBL for both boards. ...