I need some advice RE: UCGS. When I connect the machine (Arduino and shield) to my computer (MacbookPro 2013 8gb RAM) it registers in UGCS and I get the GRBL setings up with $ etc, but when I go to jog the machine with the onscreen keys, sometimes I will get a dialogue box that says “device not configured in writebyte”? I have had a quick search online but have not had any luck. The stepper motors buzz with life and you can hear a lowering of the buzz that corresponds with the clicking of the onscreen keys, but no movement. I have tried easel, however sometimes the machine will disconnect on its own. When I can get the steppers moving through easel, they only move in one direction regardless of the key pressed.
Any help in the right direction would be greatly appreciated, thanks!