darwinkarl2536:
Same problem . I already flash grbl on my arduino uno but when it come on uploading gcodes the stepper motor still not moving . But when it comes on universal gcode sender when i press the controll machine it will move
I am having the same problem as well. Have you found any solution? I do not want to use any software to upload the gcodes because I am trying to build an autonomous laser engraver machine (standalone Arduino based laser engraver machine).
UKHeliBob:
GRBL does not care what is sending the commands so they could come from a second (master) Arduino that reads them from a file and passes each in turn to the slave Arduino to be executed when it is ready.
How do we do the coding for the slave Arduino to receive and run the code? Is it through Serial.print(gcodes) or are there any specific codes to translate the gcode to the stepper movement?
From my understanding, GRBL occupies the serial monitor of the slave Arduino so there is no way to use the serial monitor.
Please help. 