avrdude: stk500_recv(): programmer is not responding Problem uploading to board.

I haven't used my board in a while and this is the error every time I try to upload one of my sketches. Anyone know why?

That usually happens because either have the wrong driver or you are writing to the wrong com port.

Another possibility is that you could have loaded a sketch that hogs the serial port in which case you need to press the reset button just before the upload starts.