Wi-Fi without an ethernet cable ?

Hi All,
Really enjoying Volumio !

I would like to set up Volumio at work using only wi-fi is that possible? I am able to get Volumio to work at home, setting up the wi-fi using an ethernet cable.

Thank you !

Raspberry Pi 2 Model B Project Board - 1GB RAM
Edimax EW-7811Un 150Mbps 11n Wi-Fi USB Adapter

You can set up Wifi directly on the Pi:

sudo nano /etc/network/devices

And add the following:

auto lo
iface lo inet loopback
iface eth0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
allow-hotplug wlan0
wpa-ap-scan 1
wpa-scan-ssid 1
wpa-ssid “Network name”
wpa-psk “Network password”

Dear Ikeburner,
Thank you !

Sorry to be such a noob. How do I get to :

sudo nano /etc/network/devices

to enter the new code

Thank you for your patience!

You can do this locally by connecting a keyboard and screen, or remote using ssh and a lan cable