Build a Weather Station with Elixir and Nerves

Getting on to the Network

As previously mentioned, you’re already networking with your project but through a wired connection over the USB cable. Shelling into the Raspberry Pi and updating firmware both use this USB network. Let’s take a look at the configuration that makes USB networking possible. Open up sensor_hub/config/target.exs:

config :vintage_net,
  regulatory_domain: "US",
  config: [
    {"usb0", %{type: VintageNetDirect}},
    {"eth0",
     %{
       type: VintageNetEthernet,
       ipv4: %{method: :dhcp}
     }},
    {"wlan0", %{type: VintageNetWiFi}}
  ]

This config entry establishes the configuration for all of the networking needs related to your project. The line of interest in this case is {"usb0", %{type: Vintage ...