
Power up the Raspberry Pi – remember at this point the WiFi adapter does not work yet.

Plug the USB WiFi adapter into one of the free USB ports on the Raspberry Pi. I very recommend you do the same – it could save you a lot of headaches. I use the Edimax – Wireless USB adapter because I have found it to be cheap and very easy to work with. This is why it is very important to buy a WiFi Adapter that mentions “Linux” in the product description or package. While drivers are normally readily available for Windows computers – it is a different world for Linux and Raspberry Pi’s. Sometimes you will need to download a driver to make them work. As you may have experienced with other types of hardware devices not all devices are plug-n-play. Before we proceed I want to point out the importance of buying the right USB WiFi Adapter.
