Arduino: 1.8.4 (Windows 7), Board: “Arduino/Genuino Uno”
Archiving built core (caching) in: C:\Users\BJD~1.USE\AppData\Local\Temp\arduino_cache_14535\core
Sketch uses 928 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.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf
-v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\BJD~1.USE\AppData\Local\Temp\arduino_build_445608/Blink.ino.hex:i
avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
- Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/*
An error occurred while uploading the sketch
** Copyright (c) 2007-2014 Joerg Wunsch**
** System wide configuration file is “C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf”**
** Using Port : COM3**
** Using Programmer : arduino**
** Overriding Baud Rate : 115200**
avrdude: ser_open(): can’t open device “\.\COM3”: The system cannot find the file specified.
avrdude done. Thank you.
When I look at the hardware listing, I see COM3 is the Arduino board, no matter which physical USB port I plug it into. There are 3
on my laptop, and I have tried them all. Every one still shows up in the hardware listing as COM3. And every time I change the
settings in the “preferences” file, the upload fails, but shows the various COM ports I have used (ie: 3 or 4 or 5), with the same
“avrdude: ser_open(): can’t open device “\.\COMx”: The system cannot find the file specified.”, x being the USB port I had set up
If I leave all to just default, it always goes back to COM3, and the above error always occurs.
There is no issue with the cable or board, because I have tried them on 2 other systems and they work on them no issue (although on
both, they are on COM4, but that seems irrelevant).
The USB ports I try on the laptop are working, since I move my mouse thru all of them and have no issues.
So, far as I can see, there are no issues with a) the cable, b) the board, c) the USB ports.
Any assistance is greatly appreciated. Thanks