A Presentation about Raspberry Pi

Name: Mohammad Fahim HossainId: C1430805th semester Dept of CSE,IIUC

What Is Raspberry Pi• Credit-Card sized computer• Developed in U.K by Raspberry Pi foundation in 2009.• Project Initiated By Initiated by Eben Upton.• Based on Broadcom chips.• Supported by UCCL and Broadcom.• Affordable• Runs LINUX. Microsoft is developing Windows 10 for

newer boards.• Consumes less than 5W of Power• Supports Full HD Video Output (1080p), Multiple USB

Ports , etc

Basic Specifications of Raspberry Pi 1

Raspberry Pi 3 Model B

Specifications(Ruspberry Pi3)1

SoC: Broadcom BCM2837CPU: 4× ARM Cortex-A53, 1.2GHzGPU: Broadcom VideoCore IVRAM: 1GB LPDDR2 (900 MHz)Networking: 10/100 Ethernet, 2.4GHz 802.11n wirelessBluetooth: Bluetooth 4.1 Classic, Bluetooth Low EnergyStorage: microSDGPIO: 40-pin header, populatedPorts: HDMI, 3.5mm analogue audio-video jack, 4× USB 2.0, Ethernet, Camera Serial Interface (CSI), Display Serial Interface (DSI)

Source: 1. https://www.raspberrypi.org/magpi/raspberry-pi-3-specs-benchmarks/

Benchmark Score of Raspberry Pi3

Supported Operating System– Raspbian– Fedora– Raspbian– Debian – ArchLinux ARM– Windows 10 On Raspberry Pi2

Making a web server using Raspberry pi

What are the equipments required to do this project?

1.Raspberry Pi 2/B+2. Wi-Fi router with access to internet3. Wi-Fi dongle for Raspberry Pi or LAN cable.

Here is the project map

STEP 1: Installing Apache, PHP and MySQL for your Raspberry Pi web server

1. Before we start, make sure your Raspberry Pi is up to date. For this the code in terminal(as we are using Linux 16.04 OS) “sudo apt-get update”

2. we will start installing all the packages necessary for our raspberry pi web server. For this purpose we need to get into the root of our system by using “sudo bash” command.

3. Now lets install ‘Apache’ the main component of the project. For that, use the following command, “apt-get install apache2 apache2-doc apache2-utils”

4. After this, it is time for PHP to get into our pi, “apt-get install libapache2-mod-php5 php5 php-pear php5-xcache”

5. Now we should install the package for database connectivity, “apt-get install php5-mysql”

6. Now we can use install the MySQL server which stores everything, our database for the raspberry pi web server, “apt-get install mysql-server mysql-client”

7. During this installation, you will be asked for a password for the server. Enter a password that you will remember. That’s it! You have completed the first step! Now reboot the pi.

STEP 2: Testing the installed packages on our Raspberry Pi

For testing the presence of the installed server and database. Type ‘localhost’ or ‘127.0.0.1’ in the pi’s web browser. If you have ssh’d into it, type the pi’s ip address in your browser. Now you should see a page saying ‘It works!’.

Location of the webpage which is shown in picture is named as index.html file in the ‘/var/www’ directory.

Now, for testing mysql on your raspberry pi, open up LXTerminal and type as follows, “sudo mysql -uroot -p”

STEP 3: Installing phpMyAdmin for your Raspberry Pi web server

phpMyAdmin is a free and open source tool written in PHP intended to handle the administration of MySQL with the use of a web browser. This makes it easier to control the database. So, to install it for your raspberry pi web server, you can use the following commands. Open the terminal and let’s start with,” sudo apt-get install phpmyadmin”& Choose apache2.

Next, we will need to configure the database phpmyAdmin should use. For that you should select Yes when asked

After this, you will be asked for an administrative password. Type in the password of your MySQL database you installed earlier. Next, you will be asked for a custom password for phpMyAdmin. I typed in the same password of MySQL, as it will be easier to remember. If you wish, you can have another password also.Now, we need to combine apache with phpMyAdmin. For that, you should edit the apache2.conf file. For that, type the following in the terminal,” sudo nano /etc/apache2/apache2.conf”

At the end of this file (navigate using Ctrl+V), add a line, ”Include /etc/phpmyadmin/apache.conf”

Now restart the server using, “sudo /etc/init.d/apache2 restart”

Now, check out the link in your web browser: <pi’s ip address>/phpmyadmin or localhost/phpmyadmin in your pi. You should see the same page in the next slide.

STEP 3: Installing phpMyAdmin for your Raspberry Pi web server

STEP 3: Installing phpMyAdmin for your Raspberry Pi web server

As the username, you can type in ‘root’ and as the password, you can type in the password you gave for the MySQL Server. Now, you can have your own site by customizing the index.html or by inserting customized html file and renaming it as index.html in the www folder. You can put images, videos or whatever you want in the www folder and access it in your Local Area Network(LAN). Now that you also have a database of your own and you can maintain the site with it. So we can call it your ‘Server’, a Raspberry Pi web server.

STEP 4: Give your Raspberry Pi a static IP addressNow, this is not possible to access the server from another network. User can only access your server within the local Network. What we are going to do now is that we are going to make our server available worldwide.

In this step, the IP Address of the pi is set to DHCP. We need to change that into a static IP address. For that we need to edit a file in our pi.

Now edit the network interfaces. It is located in /etc/network/interfaces. For this in the terminal type, “sudo nano /etc/network/interfaces”

The highlighted part, which is iface eth0 inet dhcp should be changed to: iface eth0 inet static

STEP 4: Give your Raspberry Pi a static IP addressNow put the numbers in the network interface file, numbers will change by the user.address: It is the inet address, you got from ifconfig command. You can give any number starting with 192.168.1.xxx. The xxx can be replaced with any number. It is better you have it between 2 and 100. Choosing a higher number is recommended since when you have a lower number it may result in clash of IP addresses. Two devices might have the same address. That is the reason I gave it a higher number.Netmask: It is the Mask address in the “ifconfig” command.Network: It is the Destination address you got from the “netstat -nr “command.Broadcast: It is the Bcast address you got from the “ifconfig” command.Gateway: It is the gateway address you got from the netstat -nr command.“Sh”

STEP 4: Give your Raspberry Pi a static IP address

Edting iface file now, press Ctrl+X to save it and press y.

After this reboot your pi and check the ifconfig command.If inet address shows your new IP Address its confirmed that the server got a static IP address.

STEP 5: Finishing tasks.

First, we need to sign up for an account in www.no-ip.com. This service is for free.

What Dynamic DNS does is simple. Our ISP (Internet Service Provider) gives us an External IP address, that is random. No-IP.com changes our IP Address into a URL. We also configure this in our Router which will be shown soon. So, whenever our modem gets a new IP, it sends it to No-IP.com by which they connect the new IP Address and our static URL for our Raspberry Pi web server. The URL never changes but the IP does.

After account creation, you should activate your account using the e-mail sent by No-IP.com. You can sign in to your account after the activation of the same. You can see your new URL in the submenu Hostnames under Dynamic DNS Menu.

You can check your URL by clicking on it. As your Raspberry Pi Web Server is just set up, you can see the It Works! Page.

Everything is done. User can access it with just one URL. Accessible to the whole World! All the best with your Server! User can make amazing websites easily using the templates and styling using css available on the internet.

As the website has new domain name in the addressbar it will show the website name instead of showing the static ip address of the server.

STEP 5: Finishing tasks.

Credits: https://diyhacking.com/raspberry-pi-web-server/