I've been successfully coding an Arduino/ Genuino Uno board and got some more from a different (eBay based) supplier. The new boards looks like this:
When trying to upload the sketch, the IDE reported:
Arduino: 1.8.10 (Windows 10), Board: "Arduino/Genuino Uno" Sketch uses 3114 bytes (9%) of program storage space. Maximum is 32256 bytes. Global variables use 17 bytes (0%) of dynamic memory, leaving 2031 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 -PCOM6 -b115200 -D -Uflash:w:C:\Users\Andrew\AppData\Local\Temp\arduino_build_918838/FadePairLEDs-methods.ino.hex:i avrdude: Version 6.3-20190619 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf" Using Port : COM6 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: ser_open(): can't open device "\\.\COM6": The system cannot find the file specified. avrdude done. Thank you. Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
Looked over the Troubleshooting#upload page as linked in the output, and got confused. It recommended checking the port, but the Port item in the Tools menu was not available (grayed out).
I've tried selecting every board shown in the Tools / Board menu but get an error of one sort or another for each.
Is this a genuine board, if so, which one?