Wireless Network for Raspberry Pi

All RasPi's will need to connect to UA Wifi Network using the network settings provided here:

Once you have the settings downloaded, extract the archive and select the subfolder that is applicable to your group (see below).

You will need to either replace the file in the following line or edit it and add the text of the configuration you downloaded. If you replace it, all previous WiFi settings will be lost.

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

nano is a text editor that will not recognize the mouse. Use keys on the keyboard. ctr-X exit to save. Answer yes to save. Enter to accept the filename.

In addition the file

sudo nano /etc/network/interfaces

should state (change manual to dhcp)

allow-hotplug wlan0

        iface wlan0 inet dhcp

        wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

for the wlan0 entry which defines the behavior of the wireless adapter ( the above configures the interface via DHCP and takes authentication from wpa_supplicatn.conf file). Again ctrl-X to save (Y) and accept the suggested filename with enter.

There are issues with setting accurate time on the Raspberry Pi. When a network interface comes online, it should automatically probe the network time servers. However for this to work we will need to edit rc.local:

sudo nano /etc/rc.local

add the following line at the end of the program

/sbin/iptables -t mangle -I POSTROUTING 1 -o wlan0 -p udp --dport 123 -j TOS --set-tos 0x00

The last commands to execute are:

sudo ifdown wlan0

sudo ifup wlan0

The last command will indicate the IP number the DHCP server is giving you.

The Team assignments are:

Pi1 von Basch
Pi2 Roentgen
Pi3 Knoll
Pi4 Galvani
Pi5 Radon
Pi6 Gibbon
Pi7 Einthoven
Pi8 Ruska
Pi9 Fleming
Pi10 Whitaker
Pi11 Townsend
Pi12 Aoyagi
Pi13 Helmholtz
Pi14 Damdian
Pi15 Ehrlich
Pi16 Lauterbur
Pi17 Godfrey
Pi18 Forssmann
Pi19 Becquerel
Pi20 Drinker
Pi21 Nutt
Pi22 Berger
Pi23 Fujimoto
Pi24 Palmaz