INTERNET OF THINGS HANDS ON TRAINING AND COURSE MATERIAL

1. Raspberry Pi

2. CONTENT
• What is a Raspberry Pi?
• Key Components
• Programming Languages
• Raspberry Pis in Primary Ed.
•Office
• Reference

3. Who invented the Raspberry Pi?
Eben Upton is a British engineer, creator of the
Raspberry Pi and the Raspberry Pi Foundation. He
studied physics and engineering at the Cambridge
university before working for prestigious
companies, like Broadcom, Intel and IBM.
The name Raspberry Pi is derived from the fruit pie,
raspberry pie. Many companies in the computer
neighbourhood where Raspberry Pi was based used
fruit names such as Apple and apricot as names for

4. WHAT IS A RASPBERRY PI?
• University of Cambridge’s Computer Laboratory
• Decline in skill level
• Designed for education
• A credit card sized PC
• Plugs into a TV or monitor
• Inexpensive(ish) ~$35 each
• Capability:
• Programming
• Electronic Projects
• Office
• Play HD Videos

5. KEY COMPONENTS
• Essential:
• Raspberry Pi board
• Prepared Operating System SD Card
• USB keyboard
• Display (with HDMI, DVI, or Composite input)
• Power Supply
• Highly suggested extras include:
• USB mouse
• Internet connectivity - LAN cable
• Powered USB Hub

6. PROGRAMMING LANGUAGES
• The Raspberry Pi Foundation
recommends Python
• Any language which will compile for
ARMv6 can be used
• Installed by default on the Raspberry Pi:
• C
• C++
• Java

7. SETUP

9. POWER
5v micro
USB
connector
(Similar to the one on a lot of
mobile phones!)

10. 3.5mm Audio
Standard
headphone
socket
RCA Video
(works with
most older
TVs)
HDMI Audio & Video
(works with modern TVs and DVI
monitors)
A/V (Audio/Video)

11. GPIO
(Genera
l
Purpose
Input &
Output)
10/100Mb
Ethernet
2 x USB 2.0
ports
CONNECTIVITY

12. DSI
(display
interface)
SOC (System On a Chip)
Broadcom BCM2835 700Mhz
INTERNALS LAN
Controller
CSI
(camera
interface)

13. SD Card Slot
(supports SD cards up to 32GB)
Storage

14. 10 USES FOR
A RASPBERRY PI

15. 10 Office
1
2
3
4
5
6
7
8
9

16. 1
2
3
4
5
6
7
8
9
10
Office

17. 9Programming
1
2
3
4
5
6
7
8
10

18. 1
2
3
4
5
6
7
8
9
10
Programming

19. 8
Game
Console
1
2
3
4
5
6
7
9
10

20. 1
2
3
4
5
6
7
8
9
10
Game
Console

21. 7 Web Server
1
2
3
4
5
6
8
9
10

22. 1
2
3
4
5
6
7
8
9
10
Web Server

23. 6 Tor Router
1
2
3
4
5
7
8
9
10

24. Tor Router
1
2
3
4
5
6
7
8
9
10

25. 5 HTPC
1
2
3
4
6
7
8
9
10

26. 1
2
3
4
5
6
7
8
9
10
HTPC

27. 4 Bird House
1
2
3
5
6
7
8
9
10

28. Bird House
1
2
3
4
5
6
7
8
9
10

29. 3
Super
Computer
1
2
4
5
6
7
8
9
10

30. 1
2
3
4
5
6
7
8
9
10
Supercomputer

31. 2
1
3
4
5
6
7
8
9
10
Clock

32. 1
2
3
4
5
6
7
8
9
10
Clock

33. 1
2
3
4
5
6
7
8
9
10
PiBot!

34. PiBot!
1
2
3
4
5
6
7
8
9
10

36. • The Raspberry Pi is a series of small single-board
computers developed in the United Kingdom by the
Raspberry Pi Foundation to promote the teaching of
basic computer science in schools and in developing
countries.
• The original model became far more popular than
anticipated, selling outside of its target market for uses
such as robotics.
• Over 5 million Raspberry Pis have been sold before
February 2015, making it the best-selling British
computer. By November 2016 they had sold 11 million
units.

37. Raspberry Pi Sales
7500000 J I r
- - UK made
J
- - Model A
r - - Total Pi's sold
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Date

39. • The first genera tion (Raspberry Pi 1 Model B) was released in
Februa ry 2012. It was followed by a simpler and inexpensive
model Model A.
• In 2014, the founda tion released a board with an improved
design in Raspberry Pi 1 Model B+. These boards are
approximately credit-card sized and represent the standard
mainline form-factor.
• Improved A+ and B+ models were released a year later. A
"compute module" was released inApril 2014 for embedded
applications, and a Raspberry Pi Zero with smaller size and
reduced input/outpu t (1/0 ) and general-purpose input/ou tpu t
(GPIO) capabilities was released in November 2015 for US$5.

40. • The Raspberry Pi 2 which added more RAM was released in
February 2015.
• Raspberry Pi 3 Model B released in February 2016, is
bundled with on-boa rd WiFi, Bluetooth and USB boot
capabilities.
• As o f January 2017, Raspberry Pi 3 Model B is the newest
mainline Raspberry Pi.
• Raspberry Pi boards are priced between US$5-35.
• As o f 28 February 2017, the Raspberry Pi Zero W was
launched, which is identical to the Raspberry Pi Zero, but
has the Wi-Fi and Bluetooth func tiona lity of the Raspberry
Pi 3 for US$10.

41. • All models feature a Broadcom system on a chip (SoC),which
includes anARM compatib le central processing unit (CPU) and an
on-chip graphics processing unit (GPU, aVideoCore IV).
• CPUspeed ranges from 700 MHz to 1.2 GHz for the Pi 3 and on
board memory range from 256 MB to 1 GB RAM.
• Secure Digital (SD) cardsare used to store the operating system and
program memory in either the SDHCor MicroSDHC sizes.

42. • Most boards have between one and four
USB SLOTS, HDMI AND COMPOSITE
VIDEO OUTPUT, AND A 3.5 MM
PHONO JA CK FOR AUDIO.
• Lower level outpu t is provided by a number
of GPIO pins which support common
protocols like 1
2c.
• The B-models have an 8P8C Ethernet port
and the Pi 3 and Pi Zero W have on board
Wi-Fi 802.11n and Bluetooth.

43. • The Foundation provides Raspbian, a Debian
based Linux distribution for download, as well
as third party Ubuntu, Windows 10 IOT Core,
RISC OS, and specialised media center
distributions.
• It promotes Python and Scratch as the main
programming language, with suppor t for many
other languages.
• The default firmware is closed source, while an
unofficial open source is available.

44. • This block diagram depicts ModelsA, B,A+, and B+. Model
A, A+, and the Pi Zero lack the Ethernet and USB hub
components.
• The Ethernet adapter is interna lly connected to an
additional USB port.
• In ModelA, A+, and the Pi Zero, the USB port is connected
directly to the system on a chip (SoC). On the Pi 1 Model
B+ and later models the USS/Ethernet chip contains a five
point USB hub, of which four ports are available, while the
Pi 1 Model B only provides two.
• On the Pi Zero, the USB port is also connected directly to
the Soc, but it uses a micro USB (OTG) port.

45. • The Broadcom BCM2835 Soc used in the first genera tion Raspberry
Pi is somewha t equivalent to the chip used in first modern
genera tion smartphones (its CPU is an o lder ARMv6 architecture),
which includes a 700 MHz ARM1 176JZF-S processor, VideoCore IV
graphics processing unit (GPU), and RAM.
• It has a level 1 (L1) cache of 16 KB and a level 2 (L2) cache of 128 KB.
The level 2 cache is used primaril
y by the GPU. The Soc is stacked
underneath the RAM chip, so only its edge is visib le.
• The Raspberry Pi 2 uses a Broadcom BCM2836 Soc with a 900 MHz
32-bit quad-core ARM Cortex-A7 processor, with 256 KB shared L2
cache.
• The Raspberry Pi 3 uses a Broadcom BCM2837 Soc with a 1.2 GHz
64-bit quad-core ARM Cortex-A53 processor, with 512 KB shared L2
cache

46. • The Raspberry Pi 3, with a quad-core Cortex-A53 processor,
is described as 10 times the performance of a Raspberry Pi
1.This was suggested to be highly dependent upon task
threading and instruction set use. Benchma rks showed the
Raspberry Pi 3 to be approximately 80% faster tha n the
Raspberry Pi 2 in parallelized tasks.
• Raspberry Pi 2 includes a quad-core Cortex-A? CPU running
at 900 MHz and 1 GB RAM. It is described as 4 -6 times more
powerful tha n its predecessor. The GPU is identica l to the
original. In parallelized benchma rks, the Raspberry Pi 2
could be up to 14 times faster tha n a Raspberry Pi 1 Model
B+.

47. • The Raspberry Pi 2 and the Raspberry Pi 3
have 1 GB of RAM.
• The Raspberry Pi Zero and Zero W have
512 MB of RAM.

48. • The Model A, A+ and Pi Zero have no Ethernet circuitry
and are commonly connected to a network using an
external user-supplied USB Ethernet or Wi-Fi adapter.
• On the Model B and B+ the Ethernet port is provided by a
built-in USB Ethernet adapter using the SMSC LAN9514
chip.
• The Raspberry Pi 3 and Pi Zero W (wireless) are equipped
with 2.4 GHz WiFi 802.11n (150 Mbit/s) and Bluetooth 4.1
(24 Mbit/s) based on Broadcom BCM43438 FullMAC chip
with no official support for Monitor mode but
implemented through unofficial firmware patching and
the Pi 3 also has a 10/100 Ethernet port.

49. • The Raspberry Pi may be operated with
any generic USB computer keyboard and
mouse.
• It may also be used with USB storage, USB
to MIDI converters, and virtua lly a ny other
device/componen t with USB capabilities.
• Other peripherals can be attached through
the various pins and connectors on the
surface of the Raspberry Pi.

50. • The video controller can emit standard modern TV
resolutions, such as HD and Full HD, and higher or
lower monitor resolutions and older standard CRT
TV resolutions.
• As shipped, it can emit these: 640x350 EGA;
640x480 VGA; 800x600 SVGA; 1024x768 XGA;
1280x720 720p HDTV; 1280x768 WXGA variant;
1280x800 WXGA variant; 1280x1024 SXGA;
1366x768 WXGA variant; 1400x1050 SXGA+;
1600x1200 UXGA; 1680x1050 WXGA+; 1920x1080
1080p HDTV; 1920x1200 WUXGA.

51. Raspberry Pi l
Model A
Raspberry Pil
ModelA+
Raspberry Pil
Model B
Raspberry Pi l
Model B+
Raspberry Pi2
Model B
Raspberry Pi3
Model B
Raspberry Pi
Zero
USB 2.0
Ports
1 1 2 4 4 4 1(Micro- USB)
Ethernet None None 1
0/1
00
Mbit/s
1
0/1
00
Mbit/s
1
0/1
00
Mbit/s
1
0/1
00
Mbit/s
None
Bluetooth None None None None None 4.1 None
Wif i None None None None None 802.l n None
Audio I
n 12
s l2
S l2
S 12
s l2
S l2
S l2
S
Audio Out l2
S,analog
(3.Smm
jack), digital
(HDMI)
l2
S,analog
(3.Smm
jack),
digital
(HDMI)
l2
S,analog
(3.
Smm
jack), digital
(HDMI)
l2
S,analog
(3.Smm
jack), digital
(HDMI)
l2
S,analog
(3.Smm
jack),
digital
(HDMI)
l2
S,analog
(3.Smm
jack), digi
tal
(HDMI)
Digital
(mini-
HDMI
),
analog
GPIO
PWM
Video I
n CSI
Camera
Connector
CSI
Camera
Connector
CSI
Camera
Connector
CSI
Camera
Connector
CSI
Camera
Connector
CSI
Camera
Connector
None
Video Out HDMI,
Composi
te
(RCA)
HDMI,
Composite
(TRRS)
HDMI,
Composite
(RCA)
HDMI,
Composi
te
(TRRS)
HDMI,
Composite
(TRRS)
HDMI,
Composite
(TRRS)
Mi
ni- HDMI
,
GPIO
Composi
te
External
Storage
SD MicroSD SD MicroSD MicroSD MicroSD Mi
croSD

52. • The Raspberry Pi Foundation recommends
the use of Raspbian, a Debian-based Linux
opera ting system.
• Other third party opera ting systems
availab le via the official website include
Ubuntu MATE, Snappy Ubuntu Core,
Windows 10 loT Core, RISC OS and
specialised distributions for the Kodi
media center and classroom management.

53. • Andr oid Things
• Arch Linux
• OpenSuse
• Raspberry Pi Fedora Remix
• Pidora
• Gentoo Linux
• CentOS Raspberry Pi
• Kali Linux
• Slackware ARM
• Puppy Linux

54. • RISC OS Pi
• FreeBSD
• NetBSD
• Windows 10 IOT Core
• Haiku
• HelenOS

55. • The Raspberry Pi community was described by JamieAyre
• of FLOSS software company AdaCore as one
of the most exciting parts of the project.
• Community blogger Russell Davis said tha t
the community streng th allows the
Foundation to concentrate on documen tation
and teaching.
• The community developed a fanzine around
the platform called The MagPi which in 2015,
was handed over to the Raspberry Pi
Foundation by its volunteers to be continued
in-house.

56. • The MagPi is a free fanzine for users of the
Raspberry Pi computer.
• It was created by the community as an unofficial
volunteer produced Raspberry Pi publication
and in 2015 was handed over to the Raspberry
Pi Foundation to be run in-house as the official
Raspberry Pi magazine.
• It was launched in May 2012 and contains news,
projects and tutorials.

57. • In 2006, early concepts of the Raspberry Pi were based on the
Atmel ATmega644 microcontroller. Its schematics and PCB
layout are publicly available.
• Foundation trustee Eben Upton assembled a group of teachers,
academics and computer enthusiasts to devise a computer to
inspire children.
• The computer is inspired byAcorn's BBC Micro of 1981.
• The Model A, Model B and Model B+ names are references to
the original models of the British educational BBC Micro
computer, developed by Acorn Computers.
• The first ARM prototype version of the computer was mounted
in a package the same size as a USB memory stick. It had a USB
port on one end and an HDMI port on the other.

58. • The Foundation's goal was to offer two
versions, priced at US$25 and $35.
• They started accepting orders for the higher
priced Model B on 29 February 2012, the lower
cost Model A on 4 February 2013. and the even
lower cost (US$20) A+ on 10 November 2014.
• On 26 November 2015, the cheapest
Raspberry Pi yet, the Raspberry Pi Zero, was
launched at US$5 or £4.

59. 40pins: 28x GPI0 , 12C, SPI, UAR
T
1
HDMI out

60. 34pin s: 2 1x GPIO, 1
2C, SPI, UART
RCA 3 pole ack
St at us LED' s
QI
....
0 (1)
iiiE
'O
.......
ra....
V O
cfJ
I/) c:
0
l x USB
2.0
HDMI out

61. 34p ins : 2 x CPIQ 1
2C, SPI, UARr
RCA
3 pole ack
Status LED's
2x use
2 . 0
10/ 100 Mbps
Ethernet
HDMI out

62. Ill
Cl
UJ
...J
Ill
.
::
.:
.
l
.
I.
l.
l
( /)
2x lJSB 2 . 9
2x use 2.
e
Ethernet
R
J45
HDMI out
4 poles jack

63. 2x USB 2.0
Broadco
BCM283 2x USB 2.0
Ethe rnet
RJ45
HDMI ou t
4 poles j ack

64. • Camera - On 14 May 2013, the founda tion and the distributors RS
Components & Premier Farnell/Element 14 launched the Raspberry Pi camera
board alongside a firmware update to accommoda te it. The camera board is
shipped with a flexible flat cable tha t p lugs into the CSI connector which is
located between the Ethernet and HDMI ports.
• Gertboard - A Raspberry Pi Foundation sanctioned device, designed for
educationa l purposes, that expands the Raspberry Pi's GPIO pins to allow
interface with and control of LEDs, switches, analog signal
s, sensors and other
devices. It also includes an optiona l Arduino compatible controller to interface
with the Pi.
• Infrared Camera - In October 2013, the founda tion announced tha t they
would begin producing a camera module without an infra red filter, called the
Pi NolR.
• HAT (Hardware Attached on Top) expansion boards - Together with the
Model B+, inspired by the Arduino shield boards, the interface for HAT boards
was devised by the Raspberry Pi Foundation.

65. • Asus TinkerBoard
• BeagleBone
• Banana Pi
• Orange Pi
• Ordroid

68. A
Gb lAN I t
SupPOrt,up ro 192K/24bit sample rate
ve-i. .o · EDR
v l..w1-F1802.11b/r.Jn • swappable antenna
Yu,4.1• L
E
Yt>J, Wl.f• S02 n b/gjn
SOIO 3.0 S.Ol02.0
Official Supported OS
udio
Wi·
Fi
Bluetoot
h
SDIO

70. THANKS