Sketch uses 28,790 bytes (89%) of program storage space. Maximum is 32,256 bytes.Global variables use 1,485 bytes (72%) of dynamic memory, leaving 563 bytes for local variables. Maximum is 2,048 bytes.avrdude: stk500_recv(): programmer is not respondingProblem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
Hi. I borrowed a friends Uno R3 and all is working now.All I did was load the drivers for the Uno R3, because device manager reported no driver loaded, opened Arduino IDE and uploaded the same GRBL file that was not working on my Uno. I think the bootloader and/or device drivers may be out of date. I tried to burn a new bootloader. I could not burn it though. I think this might be a Avrdude and Avr studio driver conflict.