WLAN connection to Tello Drone

nmcli

# determine WLAN interface
$ nmcli d

# list access points
$ nmcli d wifi list

# connect to Tello Drone access point
$ nmcli d wifi connect TELLO-SSID

macOS

# get service status and WLAN interface
$ networksetup -listnetworkserviceorder

# turn WLAN on (optional)
$ networksetup -setairportpower en0 on

# connect to Tello Drone access point
$ networksetup -setairportnetwork en0 TELLO-SSID