Which core for Arduino UNO R3?

[quchunguang]

[quchunguang]

I found that arduino-cli compile --fqbn arduino:avr:uno Arduino/MyFirstSketch works, mostly by guess.
But the FQBN and Board Name always be none and unknown by arduino-cli board list.

[per1234]

Is is a clone of an Uno? If so, this is likely a duplicate of #37.

[NormanDunbar]

Try arduino-cli board listall

Cheers,
Norm.

[quchunguang]

? If so, this is

Yes. the same output with lsusb

Bus 007 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter