Hi,
the problem i have is that USB-to-serial programmer is broken on one board. So i need to use second board to program first one via it. Is it possible? I tried connecting working board to PC via USB, then 5V(brd1) -> 5V(brd2), GND(brd1) -> GND(brd2) and TX0(brd1) -> TX0(brd2) and RX0(brd1) -> RX0(brd2), but that is not working. UPloading ends with timeouts. Can you help me, or give me advice how to upload sketch other way.
Thank you