RaspberryPi/Wifi
From charlesreid1
Contents
Wifi Config for UGR Wifi Project
See the following repo, which has details of how to configure /etc/network/interfaces:
https://git.charlesreid1.com/rpi/pi-join-wifi
The basics:
Joining Unencrypted Wifi
This supposes you want to join a wifi network called MyWifiNetwork that is unencrypted. Add the following wireless network information to /etc/network/interfaces.d/widy.cfg, which is a config file specific to this wifi router that you can use to swap wifi network configurations in and out:
auto wlan0 allow-hotplug wlan0 iface wlan0 inet dhcp wireless-essid OpenWrt
Next, include this config file in your /etc/network/interfaces file by adding the last line shown to it:
auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp source /etc/network/interfaces.d/mywifi.cfg
Once you get these two network configuration files squared away, the Raspberry Pi should join that wifi network on boot.
Joining Encrypted Wifi
To join an encrypted wifi, use a slightly different syntax for the config file. Call this securenet.cfg and put it in /etc/network/interfaces.d/securenet.cfg:
auto wlan0 allow-hotplug wlan0 iface wlan0 inet dhp wpa-ssid SecureNetwork wpa-psk abcdefg123
Next, reference this file in the /etc/network/interfaces file the same way as for unsecured networks:
... source /etc/network/interfaces.d/securenet.cfg
This should connect to the wifi network SecureNetwork automatically on boot.
Making Raspberry Pi a Hotspot
Debugging
If the wifi network is not connecting, or is not connecting on boot, check /var/log/syslog, which will contain a detailed error log from the network.
Flags
