Setup raspi-config WLAN, that's it:
You want to set up WLAN on the Raspberry Pi via the raspi-config, but don't know how? That's not just for you. The Raspi-config WLAN Guide will help you solve setup problems.
There are several solutions that you can use to set up WLAN using Raspi-config. Basically, it's not that difficult, but if you don't have a graphical user interface, you first have to configure WLAN manually via the Raspi-config connection.
With the Raspberry Pi, the first two models didn't have a built-in WLAN and you had to buy a suitable raspi-config WLAN USB adapter first. Starting with the Raspberry Pi 3 a WLAN radio chip is integrated and so you only need to set it up via the raspi-config WLAN and don't have to buy anything more.
Setting up the raspi-config WLAN function
No matter which Raspberry Pi you have - if you install the latest version of the operating system with user interface, you can also fix any raspi-config WLAN problems that may occur over it. Rasbian with an enabled desktop environment has a graphical user interface and is also called LXDE environment.
The functionalities allow you to set up the raspi-config WLAN function via the terminal. This way works fine on the Raspberry Pi 3, but also on newer Raspberry Pi's with integrated WLAN chip. In the simplest case you only need to boot the system and then configure the raspi-config WLAN. In between, it is important to enter the WLAN password in the raspi-config.
Then you are already logged in to the network. By the way: You can of course also change the password using the raspi-Config WLAN option. It is best to make sure that you have the access data ready. You only need to configure the raspi-Config WLAN settings once and then the raspberry Pi will automatically log into your WLAN every time you restart.
sudo raspi-config WLAN - Connection
The Raspberry Pi 3 is the first model to feature an integrated WLAN module. This allows you to use the Raspberry Pi flexibly and, of course, also increases the possibilities of use.
To use the WLAN directly, the first step is to check whether the WLAN adapter is working properly. If this is not the case, you may have to fix the raspi-config WLAN problems and adjust the country code first.
To do this, use the command sudo raspi-config and change the country code to DE. Before you establish the raspi-config WLAN connection, you should check one more point. So you have to scan if the network is close to you. Then you can connect and get started.
Connect Raspberry Pi to WLAN
If you don't have a RasPi 3, you will of course have to use an adapter for the WLAN.
Of course you can also connect the Raspberry Pi via cable.
But it is much more flexible to use the Raspi-Config WLAN. This is done via the Raspi-Config WLAN router and with a Raspi-Config WLAN repeater you can even optimize the connection.
If you have an adapter, you can test it on the Rasperry Pi. If not, you can of course buy an adapter at a reasonable price and then set up your wireless network with the Raspi-Config WLAN Guide.
Increase raspi-config WLAN quality
Normally many people use the Raspi via Ethernet and connect it to the cable. But with that you are logically tied to one place and you can't flexibly advance your projects.
For this reason it is recommended to use WLAN with Raspi-Config. If you use the wireless network, but the connection is not very good, there is of course a very effective solution - a repeater.
All you have to do is plug it into the wall socket and configure it briefly. With a repeater you have the possibility to have a very good network quality throughout and to advance your projects faster.