1. installation

modprobe brcmfmac
source /bin/cid-functions
cid_del_line /etc/modprobe.d/blacklist.conf "blacklist brcmfmac"

2. dhcp client

nmcli device wifi list
IN-USE  BSSID              SSID                  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY
        BE:53:22:18:C1:BF  --                    Infra  1     130 Mbit/s  99      ▂▄▆█  WPA2
        9C:53:22:18:C1:BF  wwn002                Infra  1     130 Mbit/s  99      ▂▄▆█  WPA2
        9C:53:22:18:C1:BE  d01b5                 Infra  36    270 Mbit/s  90      ▂▄▆█  --
        BE:53:22:18:C1:BE  --                    Infra  36    270 Mbit/s  90      ▂▄▆█  WPA2
        28:EE:52:89:61:78  d01b2                 Infra  6     130 Mbit/s  72      ▂▄▆_  --
        38:35:FB:06:ED:7C  WiFi-2.4-ED76         Infra  1     130 Mbit/s  59      ▂▄▆_  WPA2
        28:EE:52:89:61:79  d01b5                 Infra  44    270 Mbit/s  49      ▂▄__  --
        28:EE:52:89:5E:66  d01b2                 Infra  11    130 Mbit/s  42      ▂▄__  --
        CC:47:40:08:8F:88  AP-WH3E-CC4740088F87  Infra  8     65 Mbit/s   35      ▂▄__  WPA2
        28:EE:52:89:5E:67  d01b5                 Infra  44    270 Mbit/s  34      ▂▄__  --
        30:EA:E7:72:2B:FE  Solar-WiFi213W0021    Infra  1     135 Mbit/s  29      ▂___  WPA2
nmcli connection add type "wifi" ifname "wlan0" con-name "wlan0" ssid "wwn002"
nmcli connection modify "wlan0" wifi-sec.key-mgmt wpa-psk
nmcli connection modify "wlan0" wifi-sec.psk "12345678"
nmcli connection up "wlan0"