You must have another way to connect to your robot first before following this
tutorial. On the EV3, that means USB or Bluetooth. If you have a Raspberry Pi,
you can plug in a monitor and keyboard to the Raspberry Pi. The instructions
below are run on your robot itself.
I like to setup wireless networking on my robots. Robots should go untethered!
Here is how. It’s easy in an interactive tool call connmanctl. You connect
once, and next time you boot, it’s all configured. On my ev3dev machine it went
like this:
robot@ev3dev:~$ connmanctl
Error getting VPN connections: The name net.connman.vpn was not provided by any
connmanctl> enable wifi
Enabled wifi
connmanctl> scan wifi
Scan completed for wifi
connmanctl> services
*AO Wired ethernet_b827ebbde13c_cable
wifi_e8de27077de3_hidden_managed_none
AH04044914 wifi_e8de27077de3_41483034303434393134_managed_psk
Frissie wifi_e8de27077de3_46726973736965_managed_psk
ruijgt gast wifi_e8de27077de3_7275696a67742067617374_managed_psk
schuur wifi_e8de27077de3_736368757572_managed_psk
connmanctl> agent on
Agent registered
connmanctl> connect wifi_e8de27077de3_41 # You can use the TAB key at this point to autocomplete the name
connmanctl> connect wifi_e8de27077de3_41483034303434393134_managed_psk
Agent RequestInput wifi_e8de27077de3_41483034303434393134_managed_psk
Passphrase = [ Type=psk, Requirement=mandatory ]
Passphrase? *************
Connected wifi_e8de27077de3_41483034303434393134_managed_psk
connmanctl> quit
You’re all set up now! After reboot connman automatically finds your local
Wi-Fi again.
.