This slide was from the workshop in the Port City University, Chittagong

1. Up and Running with
Raspberry Pi
(RaspberryPi-101)
Shahed

2. What we are gonna learn ==>
• Introduction to Raspberry Pi
• Hardware description
• Types of OS for Pi
• Installation of OS
• OS instruction
• Remote Access using SSH, VNC, Cyberduck
• Package management
• Python, GCC and Scratch
• Accessing GPIO ports with Python
• LED blink project
• Some awesome projects using RPi

3. About Me
• Mechanical Engineering Undergrad
• Hardcore fan of Linux ecosystems
• Build robots as a hobby
• Love to play with Python

4. What is a Raspberry Pi?
• Credit Card sized single board computer
• Plugs into a TV or a Monitor
• Based on Broadcom chips
• Runs a complete version of Linux
• Has multiple usb ports for communication
• Supports gigabit ethernet lan 10/100
• Can deliver full HD (1080P) video output
• Affordable

5. Time for some history!!!
• The Raspberry Pi is the work of the Raspberry
Pi Foundation, a charitable organisation.
• Developed in U.K by Raspberry Pi foundation
in 2009.
• Project Initiated By Initiated by Eben Upton.
• It's supported by the University of Cambridge
Computer Laboratory and tech firm
Broadcomm

6. Why Raspberry Pi?
• Very Low Cost ($25 for Model A & $35 for Model B/B+)
• Great tool for Learning Programming, Computers & Concepts of
Embedded Linux, etc
• Support for All Age Groups (School Children, College
Undergraduates, Professional Developers, Programmers)
• Supports & runs Free and Open Source Linux OS
• Consumes less than 5W of Power
• Supports Full HD Video Output (1080p), Multiple USB Ports , etc
• Fun to learn & explore. You are limited by your imagination

7. Technology used in a Pi
Model A
Model B+
Model B+

8. Hardwares :

9. Arduino vs Raspberry Pi
Specs Arduino Uno Raspberry Pi Model B+
CPU type Microcontroller Microprocessor
Operating System None Linux (usually Raspbian)
Speed 16 Mhz 700 Mhz
RAM 2KB 512MB
GPU/Display None VideoCore IV GPU
Disk 32KB Depends on SD card
GPIO pins 14 digital pins (includes 6 analog) 26 digital pins
Other connectivity None USB, Ethernet, HDMI, audio
Power consumption 0.25W 3.5W

10. Minimum things to get started
• Raspberry Pi
• HDMI/VGA monitor
• USB Keyboard
• USB Mouse
• USB WiFi adapter (If isn't built-in)
• 2.0+ Amp USB Power Adapter
• Micro-USB cable
• 8GB+ Micro-SD card
• A Computer to load initial card image

11. Setting up the Pi
6. USB TO POWER
SOURCE
5. TO MONITOR
4. TO MOUSE
3. TO
KEYBOARD
2. WI-FI
ADAPTER
1. SD CARD

12. Operating Systems for Pi
• Raspbian (Jessie, Jessie lite)
• Ubuntu (Snappy Ubuntu Core)
• Fedora
• Debian
• Archlinux ARM
• Windows 10 IoT Core
• Kali Linux
• OpenELEC
• RetroPIe

13. Preparing the SD card with an OS
• Step 1: Download bootable disk .iso's (raspbian jessie)
• Link:https://www.raspberrypi.org/downloads/raspbian
• Step 2: Write iso image to SD card
• For Windows
• Win32Disk Imager
• For Mac/Linux
• Win32Disk Imager
• Using dd command
• sudo dd bs=4M if=path_to_iso.iso of=/dev/sdX
(where X is the drive number)

14. Let's boot it up!!!
• Plug in all the accessories
• Plug in the power cable
• Pi will start booting
automatically
(First boot may take a long
time)
• You may have to face a
configure window
(If it happens, follow it
through)

15. Default Credentials for a new user
• If you encounter for a
username and password:
• username: pi
• password: raspberry
• After login, type 'startx' to go to
the Desktop

16. Setup Completed!!!

17. Time for making it home!
▶▶ ▶▶

18. Wifi Configuration
Menu > Preferences > Wifi Configuration
OR
Click on the network icon on the top panel

19. Almoooooost Ready!!
Just one more step! :p

20. Do a system update
(It is important to function all the
apps working correctly)
• Open up the terminal:
• Write--> sudo apt-get update
• and--> sudo apt-get upgrade
** Reboot after completing the update process and we are
good to go!!! :D

21. A tour to Raspbian
• Web Browser: Epiphany
• Office Applications: Libreoffice
• Media Player: VLC
• Run: sudo apt-get install vlc
• Programming:
• Geany (an IDE)
• IDLE, IDLE3 (python IDE)
• Sonic Pi
• Scratch

22. A Little bit of linux
• Bash (Linux Shell)
• Terminal Commands
• Linux File Systems

23. Linux Shell
• To interact with the Operating System or
Hardware we need to enter some
commands in the “Shell”.
• Simply put, the shell is a program that
takes your commands from the
keyboard and gives them to the
operating system to perform.

24. Basic Linux Commands
• Show directory contents:
• (Do this after every command below to see what has changed)
• ls or ls -l
• Make directory:
• mkdir lesson
• Change directory:
• cd lesson
• Create an empty file:
• touch myfile
• Edit file with nano:
• nano myfile
• Type something random inside the text editor then press Ctrl+X to save and quit.
• View file quickly:
• cat myfile
• Copy file
• cp myfile myfile2
• Remove file:
• rm myfile
• Move file
• mv myfile2 myfile

25. More Useful Commands
Command Purpose
man Get information about a particular
command. Eg: man ls
ifconfig Get network information like IP
address
adduser Create user
passwd Change password
uname –a, uname -r Show OS information
history Shows past commands you ran
chmod Change permissions of a file/directory

26. File System Directory Layout
• /home/pi or “~”
• Your “Home” directory
• Removable Drives at
• /media/pi/….

27. The Linux File System
bin : Essential command binaries
boot : Static files of the boot loader
dev : Device files
etc : Host-specific system config
home : User login and data folders
lib : Essential shared libraries and kernel modules
mnt : Mount point for mounting a file system or media
opt : Add-on application software packages
proc : Virtual folder that has information about system
root : Home folder of the Linux super user
sbin : Essential system binaries
tmp : Temporary files
usr : Secondary hierarchy
var : Variable data

28. Package Management
• Package manager means?
• Which installs software from online repositories
• Maintains dependencies for you
**In Linux systems software comes as packages (firefox,music player
etc.)

29. Using the Package Manager
 Htop:
• Process information viewer like Windows Task Manager
• Always run before package installation
• Update local repository index
• sudo apt-get update
• Install htop
• sudo apt-get install htop
-->Now we will install htop
** Now open up the Terminal and type 'htop'

30. Remote Connect to Pi
Step 1: Getting your Pi’s IP address
pi@raspberrypi ~$ hostname -I
You’ll need the IP address
when you connect the Pi
from your computer!!!

31. Remote Connect to Pi
Step 2: Chosing the method
• SSH to your Pi from terminal, and keep working on the
terminal
• SSH with a client, e.g. Cyberduck, and use your usual IDE
• Use VNC (Virtual Network Computing), and work on the
virtual GUI

32. Remote Connect to Pi
Setting SSH
• SSH – Secure Shell
• http://en.wikipedia.org/wiki/Secure_Shell
• Direct and Remote Login methods in Rpi
• Types of remote connections
• Rpi and PC connected through router
• Rpi and PC connected through direct connection
• Rpi Wifi Hotspot

33. Remote Connect to Pi
SSH to Pi from your laptop
(Terminal on Mac/Linux, PuTTY on Windows):
me@MyLinux ~$ ssh pi@193.168.10.1
Your Pi’s username
Use your Pi’s
IP!

35. Remote Access w/ VNC
• VNC(Virtual Network Computing)
• http://en.wikipedia.org/wiki/VNC_server
• Graphical desktop sharing system

36. Remote Access w/ VNC
Remote-access to Raspberry Pi’s graphical interface.
• On Your PC:
• Install VNC Viewer Client in Windows
• For Linux/Mac
• $ Install tightvncviewer
• $ vncviewer ip:5901
• $ vncviewer 192.168.1.3:5901
Download Link for VNC:
http://www.realvnc.com/download/viewer/

37. Remote Access w/ VNC
On your Pi
• Install Tight VNC Server
pi@raspberrypi ~$ sudo apt-get install
tightvncserver
• Run the server
pi@raspberrypi ~$ tightvncserver

38. Remote Access w/ VNC
Run the client software on your PC
Pi’s IP address
Usually :1 (but it can be
different. Check the VNC
server!)

39. Remote Access w/ VNC

40. SSH w/ Cyberduck
○ No virtual GUI, but faster than using VNC
○ You can use your fave IDE to edit files
○ Mac users can keep using Mac keyboard
shortcuts
Download the client at: https://cyberduck.io/

41. Cyberduck Demo

42. Programming on Raspberry Pi
• Raspberry Pi supports several Programming Languages like : Python,
C, C++, JAVA, Perl, HTML5, JavaScript, JQuery etc.
• Python is supported as the principal or main user programming
language.
• Extremely powerful and flexible language.
• Can also be used to control hardware on the Pi.
• Compiled using gcc (GNU Compiler Collection)
** Learning Programming = Practice Writing Programs

43. Programming on Raspberry Pi

44. Programming on Raspberry Pi
• Demo of Python Program on IDLE.
• Demo of C Program on Raspberry Pi.
• Demo of Scratch Program on Raspberry Pi.

45. GPIO on Raspberry Pi
• 26 GPIO Header in Model A/B and 40 GPIO Header in Model B
• These pins are a physical interface between the Pi and the
outside world.
• Out of 26, 8 are dedicated IO Lines, 2 are for UART, 4 are for
SPI (+1 for Another Chip Select) , and another 2 for the I2C
Interface (Total 17 out of 26)
• Rest are Supply Rails.
• Model B+ has 9 additional GPIO including a extra SPI (Total 17
+ 9 = 26 out of 40)
• WiringPi : Easy to use C Library for accessing the GPIO Lines
via Programming (Arduino Style Programming)

46. Let's Do Blinky!!!
Making of a LED Blinker using Python
==> What you will need:
-> A raspberry pi
-> A LED
-> A 330Ω resistor to protect the LED
-> Jumper wires

47. Let's Do Blinky!!!
Step 1: Make sure if the LED is
okay
• Connect the jumper wires as
shown
• One wire on the short leg of
LED (Negative)
• Another one attached with the
resistor is
on the long leg (Positive)
LED

48. Let's Do Blinky!!!
Step 1: Make sure if the LED
is okay
• Connect the wires as shown
• One in the 3.3V pin (Positive
wire)
• Another one is in GND
** Check if the LED is on!
3.3V (Pin
1)
GND
Cathode
Anode
(longer leg)

49. Let's Do Blinky!!!
3.3V
Ground
GPIO (general purpose input
output)

50. Let's Do Blinky!!!
GPIO-4 (Pin 7)

51. Let's Do Blinky!!!
->Programming the LED
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
LED = 4
GPIO.setup(LED,GPIO.OUT)
while True:
GPIO.output(LED,True)
time.sleep(1)
GPIO.output(LED,False)
time.sleep(1)
import RPi.GPIO libs
set LED pin as output
toggle light pin signal to
low/high to make it blink.
set pin type. use BCM, not pin
number
GPIO 4 pin (Pin 7)

52. Congrats!!!
You just finished your first Raspberry Pi project!

53. Project Showcase
1) Raspberry Pi Wall Mounted
Google Calendar – On
Instructables

54. Project Showcase
2) PiPad: Tablet Using
Raspberry Pi

55. Project Showcase
3) PiPhone : Using Raspberry Pi

56. Project Showcase
4) Pi as a Media Centre : Using
Open Source XBMC

57. Project Showcase
5) Running a Web server on
Raspberry Pi

58. Project Showcase
6) Iridis-Pi : Supercomputer
using Raspberry Pi (64
Processors, 1 TB of Memory.

59. Project Showcase
7) Low Cost HD Surveillance
Camera

60. Project Showcase
8) Games on Raspberry Pi

61. ----Q/A Session----

62. Thank You !!