In the LED Blinking tutorial, we use serial command line and software PuTTY to give a command in the Raspberry Pi. For this tutorial, we will use Remote Desktop Connection as our interface to program Raspberry Pi.
We still need PuTTY software to set up a WiFi dongle and access the Raspbian command prompt. PuTTY is a great application for accessing the command line in Raspbian from another computer, but you can’t use it to access the Raspbian desktop (GUI). In order to access the Raspbian GUI from another computer, we need to configure it so we can control it through a remote desktop application. This will allow us to access our Raspberry Pi desktop from anywhere in the world as long as we have a computer with an Internet connection.
Compare to Ethernet cable, I more prefer to use a WiFi dongle, which gives me more flexibility with the physical locations I can store the Raspberry Pi while it is running. Be careful when choosing a WiFi dongle for the Raspberry Pi though, because not all WiFi dongles will work without a lot of configuration.
Step by Step
3. Login to your Raspberry Pi through PuTTY and wait for it to boot. Please refer to Led Blinking Tutorial to learn how to use PuTTY.
To setup the TP-Link TL-WN727N WiFi Dongle, please follow this link
Next, we will setting the WiFi in Raspberry Pi. We need to do some changes to a few configuration settings. Type
[code]sudo nano /etc/wpa_supplicant/wpa_supplicant.conf[/code]
*Tips : Copy the code and right click with your mouse where you want to paste it into PuTTY and it will be inserted.
4. Replace the code in the file with this code:
ssid=”WIFI ID Network”;
The entry for ssid=”WIFI ID Network” should be the name of your wireless network, and the entry for psk=”WIFI Password” is the password you normally use to login to your home wireless network.
Now press CTRL+X, then Y, and press Enter to save the changes to the file.
5. To check the status of your WiFi connection, type
[code] sudo iwconfig [/code]
Your WiFi network name should appear under ESSID: “YOUR WIFI NETWORK NAME”.
6. To complete setting up the WiFi network in PuTTY, we need to reboot the Raspberry Pi. But before that, we need to configure Raspberry Pi first. The command for configuration settings menu is:
[code] sudo raspi-config [/code]
This is where you can change all of the default settings for Raspbian, and do other useful tasks like expand the file system and overclock the processor.
7. Now, we can start reboot the Raspberry Pi, type:
[code] sudo reboot[/code]
Wait until reboot finish.
8. After it has rebooted, login your Raspberry Pi same as before. To enter Remote Desktop Connection, we must enter local IP Address for Raspberry Pi. To check the local IP address type:
[code] sudo ifconfig[/code]
9. To use Remote Desktop Connection, we must first install a service on the Raspberry Pi called xrdp. To install the xrdp service, enter
[code]sudo apt-get install xrdp[/code]
10. After finish install xrdp. Open start menu and open Remote Desktop Connection on your computer.
11. Insert your IP Address into Remote Desktop Connection and click connect.
12. This will appear on your screen if your computer has successfully accessed your Raspberry Pi. Default login is Pi and password is raspberry.
13. Click OK and we will start go to Remote Desktop Connection interface for Raspberry Pi. It may be a bit slow and laggy depending on your internet connection.
14. You can now program your Raspberry Pi using LX Terminal in Remote Desktop Connection. PuTTY can now be turned off and UC00A can be removed from your Raspberry Pi. Once you set the WiFi on Raspberry Pi, you can freely programming the Raspberry Pi in wirelessly.
Ok, that’s all. If you have any question, feel free to ask in our technical forum as we seldom check the tutorial’s comment section. Thank you.