Con Arduino 0022 restituisce:
avrdude: stk500_2_ReceiveMessage(): timeout
avrdude: stk500v2_command(): unknown status 0x04
avrdude: stk500v2_cmd(): failed to send command
avrdude: stk500v2_command(): unknown status 0x04
avrdude: stk500v2_cmd(): failed to send command
avrdude: stk500v2_command(): unknown status 0x04
avrdude: stk500v2_cmd(): failed to send command
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
avrdude: stk500v2_command(): unknown status 0x01
avrdude: stk500v2_disable(): failed to leave programming mode