Configure WiFi

Finding access points

Nerves uses vintage_net_wifi to configure WiFi networking. This notebook uses the quick_ functions to simplify common tasks. If you’re trying to connect to an enterprise network, this may not work for you.

Step 1 is to see what WiFi networks are available. VintageNetWiFi.quick_scan/0 returns a lot of information, so lets filter it to get a list of SSIDs:

VintageNetWiFi.quick_scan()
|> Enum.map(fn %{ssid: ssid} -> ssid end)
|> Enum.sort()
|> Enum.uniq()

Connect to a network

Next, lets connect to one of the WiFi networks. Enter in its SSID and password and then evaluate the code block to set it.

ssid = IO.gets("SSID") |> String.trim()
psk = IO.gets("PSK") |> String.trim()

if ssid != "" do
  VintageNetWiFi.quick_configure(ssid, psk)
else
  IO.puts("Skipping WiFi configuration.")
end

Check the connection

The final step is to check whether everything worked. VintageNet.info/0 is an easy way of checking overall network connectivity on a device, so run it. Hopefully, you’ll see a section for "wlan0" and a connection status of :internet. You may need to scroll down.

VintageNet.info()

Next up…

See VintageNet to learn more about networking in Nerves.