I bought Arduino Uno R3 and tried to use it. It was not working properly.
When I have put on my computer Arduino IDE and plug the Uno to USB port RED light is glowind and yellow led is blinking so as it should do when using sketch Blink.
When I try to run that sketch Blink it seems at first go right, but after some time there is text in the lower part of the window
avrdude : stk500_recv( ) : programmer is not responding
avrdude : stk500_getsync ( ) attempt 10 of 10 : not in sync : resp=0x73
What is wrong and what should I do?
I have set right Port (com3) and right Arduino model (Uno) and tried this in three computer and tried Arduino Web editor.