Re: Error Message: "avrdude: stk500_getsync(): not in sync: resp=0x0"
I received the above message and spent 2 days troubleshooting. All my programs including Blink gave me this error message when I downloaded the program to my UNO R3.
Solution: Some how the type of Board go changed from the UNO. When changed back to the UNO board, everything worked again. ;D