4. Wi-Fi adapter

For an internet connection

• Several software downloads are needed to utilize this project and to take full advantage of what the raspberry pi can offer. Therefore, an internet connection is quite important.

• Either an ethernet cable or a wifi adapter may be utilized.

Details with WiFi adapter

A WiFi adapter can be used to connect the Raspberry Pi to the internet. To use a WiFi adapter with the Raspberry Pi follow the instructions below:

The Raspberry Pi official website provides 3 different tutorials to install the WiFi adapter.

In this tutorial we will be using the commands that worked.

• Connect the WiFi adapter into the Raspberry Pi.

• Open the LXT Terminal on the Raspberry Pi desktop.

Command lines in LXT Terminal

• To determine which WiFi signals are available for the Raspberry Pi enter with the following command:

sudo iwlist wlan0 scan

The Open source software is the Virtual Router. You can download it in this link Virtual Router . You just need to crate a name and a password. Take a look at the example above: When you finish to install the sot

• All the WiFi available will be displayed. Determine the ISSD and the password of the prefered WiFi connection.

• Enter the following command:

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

• Add the code below to the file. Recall the IDSS and the Password.

network={
   ssid=" Your ESSID"
   psk="Your_wifi_password"
}

• Here is an example:

network={
   ssid="WiFi-Test "
   psk="12345678"
}

• When finished, use Ctrl + X, chose Y, and press Enter. (It will save the changes made)

• To activate changes use:

sudo ifdown wlan0

• Then enter:

sudo ifup wlan0

• Confirm the WiFi is working using the following command:

iwconfig

• The Wlan0 will be connected in the WiFi that you have chosen.