This document discusses several tools for setting up and troubleshooting WiFi connectivity on a Raspberry Pi, including: 1) Installing drivers and dependencies from Github to support a RTL8188eu WiFi dongle on a Raspberry Pi Zero. 2) Configuring the wpa_supplicant.conf file to connect to a WiFi network using WPA2-PSK encryption. 3) An alternative method of configuring WiFi settings by editing the /etc/network/interfaces file. 4) Installing and activating a virtual keyboard to enter WiFi credentials on screen. 5) Using the wpagui tool to graphically configure and troubleshoot WiFi connections

1. EDUP WIFI for Raspberry Zero
spring 2019

2. Preparing for wifi installation
sudo apt-get update --fix-missing
sudo apt-get install git raspberrypi-kernel-headers build-essential dkms libelf-dev
https://github.com/lord2y/rtl8192eu-arm-linux-
driver/issues/2

3. Github project files
#https://github.com/lwfinger/rtlwifi_new
cd
#For all distros:
git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
Make clean
make
sudo make install
sudo modprobe -r <<YOUR WIRELESS DRIVER CODE>>
sudo modprobe <<YOUR WIRELESS DRIVER CODE>>

4. Setting up WiFi using an RTL8188eu
dongle on Raspberry Pi Zero
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
#into wpa_… file inser this:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US
network={
ssid="Azmon"
psk="9155253009s"
key_mgmt=WPA-PSK
}
https://zsiti.eu/wifi-rtl8188eu-raspberry-pi-
zero/

5. Raspberry Pi - Wifi Setup with WPA2-PSK
[aes]
https://coderwall.com/p/v290ta/raspberry-pi-wifi-setup-with-wpa2-psk-
aes

6. ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="Azmon"
psk="9155253009s"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
group=CCMP
auth_alg=OPEN
}

7. Another way
#sudo nano /etc/network/interfaces
auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-ssid Azmon
wpa-psk 9155253009s
iface default inet dhcp

8. Virtual keyboard activation
First thing to do:
Open terminal
Second you will need to update the repositories:
sudo apt-get update
An upgrade to the whole system isn't needed but it is recommended:
sudo apt-get upgrade
Now we can install the virtual keyboard:
sudo apt-get install matchbox-keyboard
Rebooting is recommended:
sudo reboot
https://raspberrypi.stackexchange.com/questions/41150/virtual-keyboard-
activation

9. Setup Wi-Fi connectivity on Raspberry Pi-
3
http://blog.crazypi.com/setup-wi-fi-connectivity-raspberry-
pi3/
udo apt-get update && sudo apt-get install raspberrypi* raspi-config
Once updated, use the following command to install graphical WiFi connection managerwpa_gui.
sudo apt-get install wpagui
After this try once again search in File manager. If you dint find follow the below steps.
Now, edit/etc/network/interfaces file using sudo nano
/etc/network/interfaces and append the following to it.
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
Now create a new file/etc/wpa_supplicant/wpa_supplicant.conf with the following contents:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
Now use following commands for proper permissions :
sudo chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf
sudo adduser pi netdev
You can now launchwpa_gui from /usr/share/applications/wpa_gui.desktop (Make a shortcut to desktop using cp
/usr/share/applications/wpa_gui.desktop ~/Desktop) as described above

12. How can I show or hide boot messages
when Ubuntu starts?
https://askubuntu.com/questions/248/how-can-i-show-or-
hide-boot-messages-when-ubuntu-starts
You would need to edit the file /etc/default/grub. In this file you'll find an entry called GRUB_CMDLINE_LINUX_DEFAULT. This entry
must be edited to control the display of the splash screen.
The presence of the word splash in this entry enables the splash screen, with condensed text output. Adding quiet as well, results
in just the splash screen; which is the default for the desktop edition since 10.04 (Lucid Lynx). In order to enable the "normal"
text start up, you would remove both of these.
So, the default for the desktop, (i.e. splash screen only):
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" #Hide text and show splash
For the traditional, text display:
GRUB_CMDLINE_LINUX_DEFAULT= #Show text but not the splash
For the splash, but the ability to show the boot messages by pressing Esc:
GRUB_CMDLINE_LINUX_DEFAULT="splash"
Or, finally, for just a (usually) black screen, try:
GRUB_CMDLINE_LINUX_DEFAULT=quiet #Don't show Ubuntu bootup text
GRUB_CMDLINE_LINUX="console=tty12" #Don't show kernel text
After editing the file, you need to run update-grub.

13. Useful GUI and Terminal Based Linux
Disk Scanning Tools