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[[Category: Linux]]
[[Category:ARM Development Boards]]
[[Category: Broadcom]]
[[Category: Development Boards]]
[[Category: RaspberryPi]]
[[Category: Education]]
[[File:Raspberry Pi Logo.svg|right|90px|Logo of Raspberry Pi]]
This page collects information about [http://www.raspberrypi.org Raspberry Pi Foundation's] ultra-low-cost (~15GBP or 25USD) Linux computer for teaching computer programming to children.
'''Please note that the Raspberry Pi isn't released yet - this page is a community work in progress in preparation for the launch'''
* [http://www.raspberrypi.org/archives/384 Pinout for GPIO connectors]
* [http://www.raspberrypi.org/archives/344 Final PCB artwork published]
* [http://www.raspberrypi.org/ Want to stay informed?  Announcements mailing list now active - sign up on the home page]
* [http://www.raspberrypi.org/?p=28 Alpha boards are now in manufacture]
=Upcoming Events=
Raspberry Pi Staff will be attending the following events:
* [http://www.etech.ohio.gov/promotions/newsletter/10282011.dot eTech Ohio conference, Ohio, 14 February 2012]
=== November 2011 ===
* [http://events.linuxfoundation.org/events/linuxcon-brasil/ Linuxcon Brazil, November 2011, Brazil]
=== December 2011 ===
* Regional conference in Japan - Tokyo, Japan, December 9, 2011 - [[Japan Technical Jamboree 39]]
* [http://www.csedweek.org/ Computer Science Education Week: 4th-10th December 2011, USA]
=== February 2012 ===
* [http://teachcomputing.wordpress.com/ Hackademy Codecamp, 11 February 2012, Preston, UK]
=== July 2012 ===
* O'Reilly Open Source Convention ([http://www.oscon.com/ OSCON]) at Portland, Oregon Convention Center July 16-20, 2012.  The Call for Papers is scheduled to be posted in November 2011.
''Discuss: [http://www.raspberrypi.org/forum/?mingleforumaction=viewtopic&t=342 http://www.raspberrypi.org/forum/?mingleforumaction=viewtopic&t=342]''
=Provisional specification=
[[File:Raspberry Pi.jpg|thumb|right|Raspberry Pi alpha board]]
*    700MHz [http://www.broadcom.com/products/Mobile-Multimedia/Mobile-Multimedia-Processors Broadcom BCM2835 media processor] featuring an ARM11 ([http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf ARM1176JZF-S]) core, Broadcom GPU core, DSP core and support for Package-on-Package (PoP) RAM
*    OpenGL ES 2.0
*    1080p30 H.264 high-profile decode
*    Composite and HDMI video output
*    One USB 2.0 port provided by the BCM2835
*    SD/MMC/SDIO memory card slot
*    Open software (Iceweasel, KOffice, Python)
*    Capability to support various expansion boards
Estimated availability (as of 25th October 2011) is December 2011. Initially, there will be shipping from the UK and possibly the US, but will probably expand with local distributors by the second quarter of 2012.
=Beginners guide=
You just got your new Raspberry Pi device, and now? See [[RaspberryPiBoardBeginners|beginners guides]].
=Accessories & Peripherals=
''Main article: [[RaspberryPiBoardVerifiedPeripherals]]''
==Power Adapters==
This permits to adopt the micro USB form factor, which, in turn, grants the user from inadvertently plugging out-of-range power inputs; that would be dangerous, since the 5V go straight to hdmi and output usb ports, even though the problem should be mitigated by some protections applied to the input power: the board provides a polarity protection diode, a voltage clamp, and a self-resetting semiconductor fuse.
==Expansion boards==
==HDMI to VGA Adaptor==
[http://www.hdfury.com/ http://www.hdfury.com/]
Something similar:
[http://www.fit-pc.com/web/fit-pc2/accessories/fit-vga/ http://www.fit-pc.com/web/fit-pc2/accessories/fit-vga/]
[http://blog.galemin.com/2011/03/dvi-d-to-vga-converter-for-beagleboard-xm/ http://blog.galemin.com/2011/03/dvi-d-to-vga-converter-for-beagleboard-xm/]
[http://boardzoo.com/product_info12.php http://boardzoo.com/product_info12.php]
=Hardware Details=
* SoC: [http://www.broadcom.com/products/Mobile-Multimedia/Mobile-Multimedia-Processors Broadcom BCM2835 media processor] system-on-chip featuring:
** CPU core: [http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf ARM1176JZF-S] ARM11 core clocked at 700MHz; ARM VFP.
* Micro USB power jack (5v)
* SD/MMC/SDIO memory card slot (underside)
* HDMI connector providing HDMI 1.3a out
* Audio connector: 3.5mm stereo jack
* Composite Video connector: RCA
* Either 1x USB 2.0 (Model A) or LAN9512 ([http://www.smsc.com/media/Downloads_Public/Data_Briefs/9512db.pdf Data Brief] | [http://www.smsc.com/media/Downloads_Public/Data_Sheets/9512.pdf Data Sheet]) providing 10/100Mb Ethernet and 2x USB 2.0 (J10: Model B)
* 10/100Mb RJ45 Ethernet jack
* DSI interface.  Believed to be a 15-pin surface mounted flat flex connector (possibly no-fit).
* MIPI CSI-2 interface.  Believed to be a 15-pin surface mounted flat flex connector (possibly no-fit).
* Expansion.  26-pin 2.54mm header, 15-pin 2.54mm header providing:
** 6-pin GPU JTAG (ARM11 pinout)
** 4-pin UART serial console, 3v3 TTL (debug)
** ~16 GPIOs at 3v3
** 2x I2C interface (3v3)
** I2S interface
** SPI interface (3v3)
* Board size: 85.60mm x 53.98mm.  Overall height expected to be less than 20mm. <ref>http://www.raspberrypi.org/archives/344</ref>
* Weight: <40g? (Alpha board weighs ~55g<ref>http://www.raspberrypi.org/?page_id=43&mingleforumaction=viewtopic&t=285.0</ref>)
* 6 layer PCB <ref>http://www.raspberrypi.org/archives/344</ref>
A manual is currently in production by members of the [http://www.computingatschool.org.uk/ Computing At School] working group.  This began on the 13 October 2011 and is due to be ready for early March 2012.  The manual is aimed at the project's target audience, children, so that they can take their "First steps in Computing Science".
==Schematic / Layout==
* [http://www.raspberrypi.org/wp-content/uploads/2011/11/gerbers2.png PCB screenshot]
* [http://lh3.googleusercontent.com/-uO4l8pwSLvU/TsQGbth6x6I/AAAAAAAAAkk/5zQMH3uKPiE/s829/Boardlayout.png PCB screenshot, labelled version]
* [http://www.raspberrypi.org/wp-content/uploads/2011/07/raspberry1.png PCB screenshot, Alpha board]
*  Provisional main CPU clock speed is 700MHz
*  No data currently released on the GPU or other component clock speeds
==Power management==
Preliminary Alpha board power usage measurements.
* Input 7.5V, ~180mA Linux running only with prompt.
* Input 7.5V, ~300mA heavy graphics running on system. 
==Graphics accelerator==
The GPU is a Broadcom [http://en.wikipedia.org/wiki/Videocore VideoCore] IV.
==Display Output Options==
Standard video outputs include:
* Composite video (NTSC and PAL) via an RCA plug.  3.5mm stereo jack for audio.
* HDMI 1.3a standard output.
These would allow any kind of TV to be used.  Computer monitors using DVI-D would also be supported with a simple HDMI-DVI cable. 
VGA monitors would require either a composite or HDMI to VGA scan converter box.  The SOC does not support any kind of analog component video, including VGA, since the SOC is designed for mobile phone use where this would not be a requirements. 
==DLP Pico projector==
The boards have both Composite and HDMI outputs so should interface with a range of DLP and laser based Pico projectors on the market.
==Interfacing to Raw LCD Panels==
Nokia N900 has 800x480 DCS LCD [http://e-ditionsbyfry.com/Olive/ODE/ECN/default.aspx?href=ECN%2F2009%2F08%2F02&pageno=5&entity=Pc00502&view=entity (afaik its like DSI, but has build in framebuffer)].
Nokia N8 has AMOLED 360x640 pixels DSI LCD.
Potential LVDS interfacing chips :
[http://www.toshiba-components.com/mobile/data/Toshiba_TC358764_65XBGA.pdf TC358764/5 Display Bridge (MIPI® DSI to LVDS)]
[http://e2e.ti.com/cfs-filesystemfile.ashx/__key/CommunityServer-Discussions-Components-Files/130/3252.DVI_3B00_HDMI_2D00_to_2D00_LVDS-Bridge-Application-Note.doc DVI receiver TFP401A, TFP403, or TFP501 + LVDS transmitter SN75LVDS83B or SN65LVDS93A] (Mentioned earlier fit-VGA is build around TFP401A, probably many more "active" DVI2VGA cables are build the same way) 
I2C/SPI ADC can be used to interface 4 pin resistive Touch Screens, For example [http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00291197.pdf STMPE812A]
==Interfacing to Camera Module==
is Sony sub-LVDS same as MIPI SCI-2? Sony IMX020 5Mbip module is available for $5-7 (SE K850i replacement camera).
Looks like Nokia N95 uses SCI-2 5Mpix camera module with autofocus. ~$15 replacement part.
==General Purpose Input/Output (GPIO), I2C, I2S, SPI==
We also bring 2x I2C (3v3), I2S and an SPI (3v3) interface out to the same connector. We support one slave interface for I2C and one for SPI.
All UART and SPI connectors can be reconfigured as GPIO pins
===GPIO Pinout:===
{| border="1" style="text-align:center;"
| '''Top Row''' || 5V0 || DNC || GND || TXD ||RXD ||GPIO1 || DNC ||GPIO4 ||GPIO5 ||DNC ||GPIO6 || SPI_CE0_N ||SPI_CE1_N
| '''Bottom Row''' || 3V3 ||SDA0 || SCL0 || GPIO7 || DNC || GPIO0 || GPIO2 || GPIO3 || DNC || SPI_MOSI || SPI_MISO || SPI_SCLK || DNC
DNC = Do not connected
J2 (on the alpha boards) is a UART:
{| border="1"
Kernel boot messages go to this UART at 115200bps.
==MIPI CSI-2 & DSI==
On the Alpha board, we also bring out MIPI CSI-2 & DSI interfaces to a 1.27 mm pinstrip.
=Software Details=
''Main page: [[RaspberryPiBoardDistributions]]''
==Development environments==
There is broad compiler support including gcc - please see [http://www.elinux.org/ARMCompilers ARM Compilers]
The ARM is capable of around 500 BOGOMIPS <ref>http://www.raspberrypi.org/?p=78#more-78</ref>, 5400 LINPACK KFLOPS with software floating point and 22000 KFLOPS with softfp hardware floating point<ref>http://www.raspberrypi.org/?page_id=43&mingleforumaction=viewtopic&t=266.0</ref>.
The GPU blob is an 18MB as an elf file, plus libraries. It does an awful lot. <ref>http://www.raspberrypi.org/?page_id=43&mingleforumaction=viewtopic&t=247</ref>
==Other software==
From Eben:
==Software hints==
[[RaspberryPiPerformance|Performance Page]]
* For Raspberry Pi frequently asked questions (FAQ) see [http://www.raspberrypi.org/?page_id=8 FAQ].
* Raspberry Pi Forum FAQ: [http://www.raspberrypi.org/?page_id=43&mingleforumaction=viewtopic&t=67 Forum FAQ]
=News articles and blog posts about Raspberry Pi=
* http://www.guardian.co.uk/technology/2011/aug/28/ict-changes-needed-national-curriculum?CMP=twt_gu - RaspberryPi background and interview with Eben. (Aug 28 2011)
* http://journaltec.com/2011/08/04/raspberry-pi-interview-with-eben-upton.html - Email interview with Eben. (Aug 4 2011)
* http://www.next-gen.biz/features/david-braben-raspberry-pi - David talks pi and computer education in the UK. (Aug 3 2011)
* http://www.cabume.co.uk/hardware/cambridges-fifteen-quid-computer-set-for-q4-launch.html - Cambridge Business Media is chuffed that, among other things, we're based in Cambridge. (3 Aug 2011)
* http://amplecan.com/archives/762 - Blog post from TheSynapseUK, who posts on the Raspberry Pi boards. This is particularly good on some of the stumbling blocks we have to overcome in schools beyond the curriculum, like all those ICT teachers who don't have any programming experience. (2 Aug 2011)
* http://www.exanders.fr/raspberry-pi-lordinateur-a-17-euros-en-bonne-voie-de-concretisation/ - French article on the how far we've come on the project. (1 Aug 2011)
* http://www.pvsm.ru/article/63919 - Russian article about the Raspi. I am charmed to discover that Google Translate says the English for the Russian version of Braben is Brabo. I think we should adopt Brabo as David's superhero name. (31 July 2011)
* http://orvtech.com/general/raspberry-pi-servidor-casero-alpha/ - Piece in Spanish about the project and the board going alpha. Note shiny US quarter photoshopped over the official 20p piece photo! (30 July 2011)
* http://www.greentablet.info/gadget-25-raspberry-minicomputer-now-in-alpha-production-stage.html - Another short news piece about the board going alpha. (30 July 2011)
* [http://hardware.slashdot.org/story/11/07/29/1523225/Raspberry-Pi-25-PC-Goes-Into-Alpha-Production Slashdot: Raspberry Pi $25 PC Goes Into Alpha Production] (29 July 2011)
* [http://www.geek.com/articles/chips/raspberry-pi-25-pc-goes-into-alpha-production-20110728/ Geek.com: Raspberry Pi $25 PC goes into alpha production] (28 July 2011)
* [http://www.huffingtonpost.co.uk/2011/07/28/why-doesnt-the-uk-have-it_n_911915.html HuffPost UK: Why Doesn't The UK Have Its Own Apple Inc?] - article on the state of the UK computer industry, which interviews Eben and includes some uplifting material on Raspi. (28 July 2011)
* [http://www.csmonitor.com/Innovation/Responsible-Tech/2011/0712/Raspberry-Pi-Rise-of-the-25-computer Christian Science Monitor: Raspberry Pi: Rise of the $25 computer] - David talks to the Christian Science Monitor about the educational implications of the project. (12 July 2011)
* http://micromath.wordpress.com/2011/06/04/digital-illiteracy-and-raspberry-pi/ - Mathematics under the Microscope, a great maths teaching blog, on Raspi. There's an interesting follow-up post too - and if you have an interest in education, especially in the sciences, the whole blog is well worth your time. (4 June 2011)
* http://www.linuxjournal.com/content/raspberry-pi-tiny-computer-runs-linux - Linux Journal is, perhaps not surprisingly, very pleased that the Raspi will be running Linux. (31 May 2011)
* http://www.electronicsweekly.com/Articles/2011/05/26/51140/in-depth-raspberry-pi-the-computer-on-a-stick.htm - EW interviews Eben. (26 May 2011)
* [http://blogs.computerworlduk.com/open-enterprise/2011/05/as-british-as-raspberry-pi/index.htm Computer World UK: As British as Raspberry Pi?] (9 May 2011)
* http://www.theinquirer.net/inquirer/news/2068735/uk-developer-creates-gbp15-kids - The Inquirer chats to David. (6 May 2011)
* http://www.techeye.net/hardware/15-usb-pc-creator-david-braben-in-talks-with-government - TechEye talks to David (who talks a bit about his impressions of ICT teaching in the UK as well as about the device). (6 May 2011)
* [http://armdevices.net/2011/05/06/25-arm-powered-desktop-presented-by-raspberry-pi-foundation/ ARMDevices.net: $25 ARM Powered Desktop presented by Raspberry Pi Foundation] (6 May 2011)
* [http://www.raspberrypi.org/wp-content/uploads/2011/07/pcb1.jpg Prototype1 board]
* [http://www.raspberrypi.org/wp-content/uploads/2011/08/DSCF1808.jpg Alpha prototype board, topside] - Alpha prototypes are about 50% larger than the target credit-card size
* [http://www.raspberrypi.org/wp-content/uploads/2011/08/DSCF1809.jpg Alpha prototype board, underside]
''See also [[RaspberryPiBoard#Schematic / Layout|Schematic / Layout]]''
==Raspberry Pi wiki pages==
category = RaspberryPi
notcategory = Ru:RaspberryPiBoard
==Home page==
[http://www.raspberrypi.org raspberrypi.org] (RaspberryPi home)
* Using [http://www.google.com/ Google] you can search raspberrypi.org (including [http://www.raspberrypi.org/?page_id=43 Forum]) using ''site:raspberrypi.org <search term>''.  The home page and forum each have their own search facilitiy also.
==Manuals and resources==
* First manual to be produced by the [http://www.computingatschool.org.uk/ Computing At School] working group.  [http://elinux.org/RaspberryPiBoard#Manual See Also]
==Contact and communication==
* [http://www.raspberrypi.org/ Home page and blog]
* [http://www.raspberrypi.org/?page_id=8 FAQ]
* [http://www.raspberrypi.org/?page_id=2 Contact Raspberry Pi Foundation (info and press inquiries)]
* [http://twitter.com/intent/user?screen_name=Raspberry_Pi Twitter]
==Education & Training materials==
''Main page: [[RaspberryPiBoard/EducationalLinks]]''
* [http://en.wikipedia.org/wiki/Hackety_Hack Hackety Hack]
* [http://en.opensuse.org/openSUSE:Education-Li-f-e OpenSUSE Linux for Education (LiFE)]
* http://projectguts.org/
===Programming languages, IDEs, etc===
====Languages tested on Alpha board====
* Interp
* Scala
* Clojure
* OCaml
* gcc
* g++
* Perl
* Ruby 1.9.2 (KidsRuby)
====Expected to work====
* Eclipse
* Lazarus
* (maybe) BoaConstructor
* Anjuta for C/C++
* Dev-C++
* CodeBlocks
* [http://www.lua.org/ Lua]
* [http://www.bbcbasic.co.uk/bbcbasic.html BBC BASIC]
** [http://mdfs.net/Software/BBCBasic/ mdfs.net]
** [http://www.riscosopen.org/wiki/documentation/show/*BASIC ROOL wiki], forum threads: [http://www.riscosopen.org/forum/forums/1/topics/693 1], [http://www.riscosopen.org/forum/forums/3/topics/183 2], [http://www.riscosopen.org/forum/forums/5/topics/129 3], [http://www.riscosopen.org/forum/forums/2/topics/71 4], [http://www.riscosopen.org/forum/forums/2/topics/71 5]
* [http://smallbasic.com/ Small Basic]
* [http://www.squeak.org/ Squeek implementation of Smalltalk]
* [http://processing.org/ Processing]
<blockquote>''See also:'' [[RaspberryPiBoard/EducationalLinks]] for education-friendly languages.</blockquote>
===Graphical Programming===
* [http://gambas.sourceforge.net/ Gambas] - possibly a good choice; easy like old visual basic
* [http://scratch.mit.edu/ Scratch]
* [http://www.alice.org/ Alice]
* [http://appinventor.googlelabs.com/ Android App Inventor]
* [http://fuse.microsoft.com/projects-kodu.html Kodu]
* [http://education.mit.edu/starlogo/ Star Logo]
* [http://mindstorms.lego.com/en-us/Default.aspx Lego Mindstorms]
* [http://wiki.sugarlabs.org/go/What_is_Sugar%3F Sugar Learning Platform: An alternative to the Desktop metaphor of the GUI]
* [http://futureboy.us/frinkdocs/ Frink]
* [http://www.geometricalgebra.net/gaviewer_download.html GAViewer]
* [http://www.geogebra.org/cms/ GeoGebra]
* [http://codecademy.com codecademy.com]
See also [[:Category:Education]]
==Past events==
* [Free Software and Open Source Symposium/LinuxFest 2011, 28 October, in Toronto]
* [ARM TechCon, 26-27 October]
* [http://www.raspberrypi.org/?p=132 Maker Faire, New York, 17 September]
* [http://www.raspberrypi.org/?p=116 Transfer Summit, Oxford - 7-8 September]
* [http://www.raspberrypi.org/?p=112 Educating Programmers Summit - 25 August 2011]
*  The layout for this page is based on the excellent [[BeagleBoard]] page on this site.
*  Some of the text on this page has been adapted from contributions made by the contributors to the [[BeagleBoard]] page on this site.
<references />
=Foreign Language Translations=
* [[de:test]]
* [[es:RaspberryPiBoardEsTest]]
* [[ru:RaspberryPiBoard]]
* [[RaspberryPiBoard-jp|jp:RaspberryPiBoard-jp]]
* [[pt-BR: Raspberry Pi Board]]
* [http://gurp.koshie.fr/ GURP (Not really a french translation, but a french wiki about it)]

Latest revision as of 19:34, 20 September 2012

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