Liya Mary Shibu

IntroductionTypes of variantsFocus on Model B+Specifications40 pin GPIO ConfigurationInstallation ProcedureProgramming ToolsScratch ProgrammingPython ProgrammingAdvantages and ApplicationsReferences

IntroductionIt is a credit card sized PC in a 45g SOC

Developed by pi foundation from university of Cambridge, UK

Cheap with low driving power of 5W

Basic aim was to promote computer teaching aid for school going students

Types of Variants

SPECIFICATION MODEL A MODEL B MODEL B+

Processor Broadcom ARM11 SOC

Broadcom ARM11 SOC

Broadcom ARM11 SOC

Memory(RAM) 256 MB 512 MB 512 MB

Clock Speed Up to 1GHZ Up to 1 GHZ Up to 1 GHZ

USB Ports 1 2 4

Networking Ports

None 1 1

Focus on Model B+

SpecificationsSupply Voltage:5Volt

Weight:50gm

CPU:700MZ single core,ARMv6 processor

System On Chip(SOC):Broadcom BCM2835

Memory(RAM):512 MB

Storage : Micro SD card

USB ports:4

Network:10/100 Ethernet port

HDMI port: Transmit digitally audio and video files to compatible

digital audio device or computer monitor

Peripherals:40 pin GPIO

Operating System: Linux

GPIO Configuration

To get started with…

Essential Requirements:Raspberry Pi board

Prepared Operating System SD Card(available as NOOBS)

USB keyboard

Display (with HDMI/ DVI input)

5 V power source via Micro USB or GPIO header

Cables

Optional:

USB mouse

Internet connectivity

Installation Procedure

Initially insert the preloaded SD card into the slot

Connect the display device(TV/PC) with suitable

cables(HTMI/HVI)

Plug in the USB micro power port

Now the raspberry pi will get booted

For the first time the OS need to be configured by the

user

Optional: plug in Ethernet port and USB mouse if

required

Raspbian OS

Programming Tools

Scratch

Python

Scratch Programming:

It is a visual tool to assist kids in learning computer

It is a kind of drag and drop interface

Scratch Programming Window

Example ProgramClick on the Scratch cat sprite.

Now click on the blocks palette and select Control.

Then drag a When green flag clicked block and place it on the

scripts area in the middle of the screen.

Add a blue Move 10 steps block from the Motion blocks palette

and connect it to the When green flag clicked block.

Now click the green flag icon in the top right hand side of the

screen and see the cat move!

Python Programming:

Simple scripting tool with clean syntax

It is a powerful programming language

The easiest introduction to Python is through IDLE.

Double click the IDLE icon on the Desktop (or IDLE3 for

Python 3)

Python Window

Example Program

>>>3+5

8

Print(“good eve”)

>>>Fruit=apple

“An”+Fruit

An apple

AdvantagesLow powered processor-5v

Improved audio sound quality

Replace large SD socket with new micro SD card

Minicomputer at a cheap cost of $35

ApplicationsRobotics

Arcade machines

Media centers

A high-performance computing cluster

Musical instruments

References

http://www.raspberrypi.org/

http://www.learnpython.org

http://www.raspberrypi.org/help/quick-start-guide/