avrdude: stk500_getsync(): not in sync: resp=0x00 I have arduino pro mini 5V, 16M ATMega328 and CP2102 USB to TTL. I've wired them like this:



When I try to upload a sketch to the arduino board I'm getting the following error:

avrdude: stk500_getsync(): not in sync: resp=0x00


The board type and the serial port are correct. The sketch also compiles successfully and I've installed the CP2102 drivers. I've noticed that even if I unplug all wires from the arduino board(and just leave the cp2102 connected to the PC), I'm getting the same error again. I'm using Windows 7.

Anyone else encountered the same issue?
It's hard to tell from your pictures, but are all the header pins soldered to the boards? If not, they need to be: there's no chance that the proper electrical connections will be made reliably if they're just inserted loosely into the holes.