Hello MR.TIN. I have a very cheap USB Wifi from China like yours, but my IOT2040 doesn't recognize it. How did you get him to recognize the antenna? Do you know where I can download the driver for it to install on the IOT2040?

MR.TIN

I test with very cheap USB Wifi from China, it work well with IOT2020

[   10.154402] mt7601u 1-1:1.0: ASIC revision: 76010001 MAC revision: 76010500

[   10.194972] mt7601u 1-1:1.0: Firmware Version: 0.1.00 Build: 7640 Build time: 201302052146____

[   10.676282] mt7601u 1-1:1.0: Warning: unsupported EEPROM version 0d

[   10.691430] mt7601u 1-1:1.0: EEPROM ver:0d fae:00

[   11.149063] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

[   11.160586] usbcore: registered new interface driver mt7601u

wlan0     Link encap:Ethernet  HWaddr 20:E0:17:0A:95:C3

inet addr:192.168.1.200  Bcast:192.168.1.255  Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

RX packets:153683 errors:0 dropped:10 overruns:0 frame:0

TX packets:11599 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:37060219 (35.3 MiB)  TX bytes:2719162 (2.5 MiB)

here is device

https://www.aliexpress.com/item/Mini-USB-150Mbps-Wireless-Network-Cards-2-4G-5G-LAN-Adapter-802-11b-n-g-WiFi/32899501625.html?spm=2114.search0204.3.109.358a3c9eHsfA7q&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_204_318_319_10059_5727220_10884_10887_10696_100031_320_10084_10083_10103_10618_452_10307_532_5727320,searchweb201603_60,ppcSwitch_0_ppcChannel&algo_expid=1ee0b9fa-a3a6-43fc-88a2-247cec353cae-16&algo_pvid=1ee0b9fa-a3a6-43fc-88a2-247cec353cae

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Split from Overview tested WIFI USB Sticks / mPCIe WIFI/2G/3G/4G cards.