WIFI

EC-A1684XJD4 supports wireless WIFI, and the network card name in the
system defaults to "wlan0":

   root@bm1684:~# ifconfig wlan0
   wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
            ether 20:57:9e:ba:02:fc txqueuelen 1000 (Ethernet)
            RX packets 0 bytes 0 (0.0 B)
            RX errors 0 dropped 0 overruns 0 frame 0
            TX packets 0 bytes 0 (0.0 B)
            TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

WIFI connection

(1) Enable WIFI:

   nmcli radio wifi on

(2) Check whether WIFI is enabled successfully:

   # Print out enabled to indicate success
   nmcli radio wifi

(3) View WIFI access point:

   nmcli dev wifi list

(4) Connect to WIFI access point:

   sudo nmcli device wifi connect zouxftest1 password 12345678 name test

Where "zouxftest1" is the name of the WIFI access point, and
"12345678" is the password.

The connection success log is as follows:

   Device 'wlan0' successfully activated with 'fd6c634b-f517-4ae9-a8e9-292a9c19d25c'.

Note that if you want to disable WIFI status:

   nmcli radio wifi off

WIFI hotspot

Use the "nmcli" command to create a wireless AP hotspot:

   sudo nmcli device wifi hotspot ifname wlan0 con-name my-hostapt ssid zouxftest7 band bg password 12345678 channel 5

described as follows:

con-name: The name of the connection, defined here as my-hostapt

ssid: the name of the created AP hotspot, defined here as zouxftest7

band: WIFI protocol standard, choose bg here

password: the password of the created AP hotspot, defined here as
12345678

channel: the pass through of the created AP hotspot, defined as 5 here

After creating a wireless AP hotspot, if you want to turn on/off the
WIFI hotspot:

   sudo nmcli connection up [down] my-hostapt