Hello there, I have an UNO r3 that is throwing avrdude: stk500_getsync(): not in sync: resp=0x00 whenever I try to upload a program. I have tried on two Macs and one Windows 8 machine, all three configured properly to the setup guide. Here is the full avrdude log:
avrdude: Version 5.11, compiled on Sep 2 2011 at 19:38:36 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2009 Joerg Wunsch System wide configuration file is "C:\Program Files (x86)\Arduino\hardware/tools/avr/etc/avrdude.conf" Using Port : \\.\COM3 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: Send: 0   avrdude: Send: 0   avrdude: Send: 0   avrdude: Recv: avrdude: stk500_getsync(): not in sync: resp=0x00 avrdude done. Thank you.
The program is the example blink. I have tried both of my USB cables and multiple USB ports. I have reuploaded the .hex successfully.