Linux%20for%20Dessert

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Title: Linux%20for%20Dessert

1
Linux for Dessert

Jeff Jirsa
2
Linux for DessertExperimenting with the
Raspberry PiIntroduction

3
Linux for DessertExperimenting with the
Raspberry Pi About this presentation

Following the Larry Wall motto(s)
There is more than one way to do it.
http//c2.com/cgi/wiki?ThereIsMoreThanOneWayToDoIt
Virtues of a programmer
Laziness The quality that makes you go to great
effort to reduce overall energy expenditure. It
makes you write labor-saving programs that other
people will find useful, and document what you
wrote so you don't have to answer so many
questions about it. Hence, the first great virtue
of a programmer. Also hence, this book. See also
impatience and hubris.
Impatience The anger you feel when the computer
is being lazy. This makes you write programs that
don't just react to your needs, but anticipate
them. Or at least pretend to. Hence, the second
great virtue of a programmer. See also laziness
and hubris.
Hubris Excessive pride, the sort of thing Zeus
zaps you for. Also the quality that makes you
write (and maintain) programs that other people
won't want to say bad things about. Hence, the
third great virtue of a programmer. See also
laziness and impatience.

4
Linux for DessertExperimenting with the
Raspberry PiWhat is it?

A credit card sized single board computer
http//en.wikipedia.org/wiki/Raspberry_Pi
http//elinux.org/Rpi_Datasheet_201_Raspberry_Pi_C
omputer
http//elinux.org/RPi_Hardware
http//elinux.org/R-Pi_Hub
http//www.element14.com/community/docs/DOC-43016/
l/broadcom-datasheet-for-bcm2835-soc-used-in-raspb
erry-pi
Other single board computers
http//en.wikipedia.org/wiki/List_of_single-board_
computers

5
Linux for DessertExperimenting with the
Raspberry PiWhat do I need?

6
Linux for DessertExperimenting with the
Raspberry PiWhat do I want?

7
Linux for DessertExperimenting with the
Raspberry PiDemo 1

Get the Raspian Image
http//www.raspberrypi.org/downloads
If your working PC is running Linux
Follow the instructions at
http//elinux.org/RPi_Easy_SD_Card_SetupCopying_a
n_image_to_the_SD_Card_in_Linux_.28command_line.29
If your working PC is running Windows
Get the Windows Disk Imager
http//www.softpedia.com/get/CD-DVD-Tools/Data-CD-
DVD-Burning/Win32-Disk-Imager.shtml
Burn the image file

8
Linux for DessertExperimenting with the
Raspberry PiDemo

9
Linux for DessertExperimenting with the
Raspberry PiWhat is the GPIO?

Stands for General Purpose Input/Output
It allows peripherals and expansion boards (such
as the Gertboard to access the CPU by exposing
the inputs and outputs.
C language library included to read and write to
the GPIO interface
Works with other languages
C, Java, Perl, Python, Ruby, Shell, Scratch
http//en.wikipedia.org/wiki/Scratch_(programming_
language)
Examples on this page
http//elinux.org/RPi_Low-level_peripherals
http//www.raspberrypi.org/archives/1471

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Linux for DessertExperimenting with the
Raspberry PiResources