few days ago usb connection in my arduino uno died,
and I see #Unknown device# in Device Manager,
but if connected, all light diodes and add power works,
later took usb ttl module PL2303
and soldering rx -> tx, tx -> rx on board, vcc and gnd,
after install driver, taken port com 3 in device manager,
now can see active port in arduino ide,
and I have question
when I upload new sketch,
"Arduino: 1.8.14 Hourly Build 2020/08/17 01:33 (Windows 7), Board: "Arduino Uno"
Sketch uses 932 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
An error occurred while uploading the sketch
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences."
if I press reset on uno board, sometimes the firmware succeeds (need to guess the moment),
Is this due to the fact that you need to solder the contacts rx tx directly to the controller atmega328p?
or is it due to the fact that the signal goes through ch340 and there are errors,
where is my mistake in this question?