http://www.opencircuits.com/api.php?action=feedcontributions&user=112.205.235.54&feedformat=atomOpenCircuits - User contributions [en]2024-03-29T13:04:15ZUser contributionsMediaWiki 1.34.2http://www.opencircuits.com/index.php?title=WikiNode&diff=22766WikiNode2012-03-30T13:16:07Z<p>112.205.235.54: </p>
<hr />
<div>Welcome to Open Circuits.<br />
Open Circuits is a wiki for sharing electronics knowledge, schematics, board layouts, and parts libraries.<br />
<br />
== key points of interest ==<br />
<br />
* [[Main Page]]<br />
* [[Open_Circuits:Community_Portal]]<br />
* [[Projects]]<br />
** open hardware cell phone projects: [[Open Mobile Gadgets]], [[Cellular Rotary Phone]]<br />
* [[Components]]<br />
* [[Techniques]]<br />
<br />
== wiki-nodes of neighboring wiki ==<br />
The WikiNode project tries to link every wiki in the world together. Our "WikiNode" links to closely-related wiki (and their WikiNode links back). <br />
<br />
If you want to talk about something that is not quite on-topic here at Open Circuits (say, "desktop PC case modding", or "embedded Linux programming"), our WikiNode helps you find another wiki where people love to talk about that exact topic. The corresponding WikiNode on [http://www.bbb.org/pittsburgh/business-reviews/mortgage-bankers/reliance-first-capital-in-pittsburgh-pa-71000152/ reliance first capital] each of those wiki helps people who want to talk about "open hardware" to discover this wiki.<br />
<br />
==== medical electronics wiki ====<br />
* [http://openprosthetics.wikispot.org/ Open Prosthetics Project Wiki]<br />
* [http://openwetware.org/wiki/Wikiomics:WikiNode OpenWetWare wiki] promotes "the sharing of information, know-how, and wisdom among researchers and <span class="plainlinks">[http://www.valleypistachio.com/ <span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">buy pistachios</span>] groups who are working in biology & biological engineering." Some wiki pages describe "open hardware" electronic devices used as tools in those projects -- for example, [http://openwetware.org/wiki/DIYbio:Notebook/Open_Gel_Box_2.0 open-hardware gel electrophoresis chambers].<br />
* [http://wiki.asiaquake.org/openeeg/published/WikiNode the OpenEEG wiki] discusses building an OpenEEG, safe ways to attach it to your head, and software for it. (See also [[Programmable Chip EEG]]).<br />
<br />
==== open hardware cell phone wiki ====<br />
<br />
* [http://opencellphone.org/ TuxPhone wiki at http://opencellphone.org/]<br />
* [http://hbmobile.org/wiki/ Homebrew Mobile Phone Club wiki at http://hbmobile.org/wiki/]<br />
* [http://widgetry.org/dokuwiki/ OpenCell wiki at http://widgetry.org/dokuwiki/]<br />
* [http://wiki.openmoko.org/ OpenMoko wiki at http://wiki.openmoko.org/] discusses open hardware cell phone you can buy now.<br />
* [http://iphone.fiveforty.net/wiki/ wiki for open-source software for a popular (but proprietary hardware) phone]<br />
<br />
==== other open wireless communications wiki ====<br />
<br />
* [http://amateur-radio-wiki.net/ Amateur Radio Wiki] Online Encyclopedia for Hams<br />
* [http://wsn.oversigma.com/ WSN, the Wireless Sensor Network wiki] discusses wireless sensor networks. (wired sensor network discussion is also tolerated :-).<br />
* <s> Reference Digital Camera [http://www.digitalcamerareviewsratings.com Digital Camera Reviews] </s> ''(not a wiki?)''<br />
* [http://wiki.twibright.com/ a wiki for RONJA] (Reasonable Optical Near Joint Access) Free Space Optics device[http://en.wikipedia.org/wiki/RONJA]. ("free technology" is the same as "open hardware", right?)<br />
* [http://wiki.openwrt.org/ OpenWRT wiki]: "OpenWrt is an open source project to create a free embedded operating system for network devices."<br />
<br />
==== microcontroller wiki ====<br />
* [http://gainer.cc/wiki/ the Gainer wiki] discusses the Cypress PSoC microcontroller<br />
* [http://avrwiki.com/ the Atmel AVR wiki] discusses the Atmel AVR series of microcontrollers (see also the Arduino wiki)<br />
* [http://techref.massmind.org/techref/piclist/ the PICList at the massmind] and [http://oase.uci.kun.nl/~mientki/wikifarm/stef/index.php PiciWiki] discusses the Microchip PIC series of microcontrollers<br />
* [http://www.open-research.org.uk/ARMuC/WikiNode.html the ARM microcontroller wiki]<br />
* [http://gnusim8085.sourceforge.net/ the GNUSim8085 wiki] for the Intel 8085 microprocessor<br />
* [http://nioswiki.jot.com/ Nios community wiki] discusses the Nios II processor, and how to implement it on a FPGA<br />
* [http://jopdesign.com/wiki/index.php the JOP wiki discusses the Java Optimized Processor, a simple and small Java processor optimized to execute Java bytecode, implemented in a low cost FPGA]<br />
* [http://wiki.opensparc.net/ the OpenSPARC Wiki] discussing open-source versions of the SPARC processor architecture, including implementing it in a FPGA<br />
* [http://developer.axis.com/wiki/ the Axis Developer wiki] discussing ETRAX CPUs and other Axis chips.<br />
* [http://microchip.com/wiki/ ICwiki]: the official wiki at microchip.com for Microchip PICmicro microcontrollers etc. ''needs wikinode''<br />
* [http://propeller.wikispaces.com/ Propeller wiki]: dedicated to documenting interesting stuff related to the Parallax Propeller microcontroller. ''needs wikinode''<br />
* [http://processors.wiki.ti.com/ Texas Instruments Embedded Processors Wiki]: the official wiki at ti.com for discussing the MSP430 (a 16-bit, ultra-low power, mixed signal microcontroller), TI DSPs, the TI OMAP (used to run Linux in the "open source handheld" Pandora handheld game console, the [[motherboards that run Linux | Beagle Board]], and the Gumstix Overo) and other ARM-based processors, and other TI processors.<br />
<br />
==== vehicles and robots and CNC ====<br />
* [http://reprap.org/bin/view/Main/WebHome the RepRap wiki] discusses the RepRap project to build a "Replicating Rapid-prototyper", a self-copying 3D printer. "Complete open-source instructions and plans are published on this website for zero cost and available to everyone so, if you want to make one yourself, you can."<br />
* [http://evproduction.org/wiki EV production wiki] discusses several [http://www.topworkplaces.com/company_survey/key-environmental-i_pittsburgh/pittsburgh_11 key environmental inc] electric open source [[vehicle]]s.<br />
* [http://openservo.com/ OpenServo wiki] -- developing a digital servo motor that accepts "Go to position X" commands and also more complex curves, and returns actual servo position, speed, voltage and power consumption.<br />
* [http://www-robotics.usc.edu/~dshell/roboticswiki/ Robotics wiki] ''(offline as of 2007-07-07)''<br />
* [http://pminmo.com/PMinMOwiki/index.php5 the PMinMO.com wiki] describes an open-source CNC machine -- software, electronics, motors, hardware, etc. -- and related information, such as [http://pminmo.com/PMinMOwiki/index.php5?title=CNC_PCB_Milling CNC PCB milling]. (was: [http://pminmo.com/wiki/] ) ''needs WikiNode''<br />
* [http://vems.hu/wiki/ VEMS wiki] has some interesting electronics projects. In particular, the [http://www.vems.hu/wiki/index.php?page=GoBox GoBox project] to tune automobile engines to minimize the amount of fuel used. ''needs wikinode''<br />
* [http://editthis.info/JMRI JMRI wiki ( http://editthis.info/JMRI )] The JMRI project is building tools for model railroad computer control.<br />
* [http://dccwiki.com/ the DCC wiki ( http://dccwiki.com/ )] ("Digital Command Control") discusses computer-controlled model railroads.<br />
* [http://ladyada.net/wiki/ the ladyada.net wiki]: discusses open source benchtop tools, laser cutters, and electronics DIY/hobbyists. ''needs wikinode''<br />
* [http://ecomodder.com/wiki/ the EcoModder wiki] discusses various ways to measure and improve vehicle gas economy, including "MPGuino is an open source fuel economy computer (Arduino based) for any vehicle with electronic fuel injection and a Vehicle Speed Sensor."<br />
* [http://wiki.makerbot.com/ MakerBot Wiki]<br />
<br />
==== other related wiki ====<br />
<br />
:For open source software (or open source in general) visit the [http://opensource.wikia.com/wiki/Main_Page Open Source Wikia].<br />
<br />
* [http://kicad.sourceforge.net/wiki/index.php/WikiNode KiCad] is a GPL'd suite of programs for EDA (electronic design automation).<br />
* [http://www.rockbox.org/twiki/ Rockbox wiki] is an open source firmware for mp3 players, written from scratch. It runs on a wide range of players. It nicely complements the [[Music Player]] hardware we discuss here.<br />
* [http://opensourceproductdesign.org/ open source product design] ''is this really a wiki?''<br />
* [http://adciv.org/ the advanced civilization wiki] discusses "Open collaborative design", which seems to include the sort of [[open hardware]] designs we share at Open Circuits.<br />
* [http://electronicschat.org/ the Electronics Chat wiki]<br />
* [http://hcvl.hci.iastate.edu/cgi-bin/openEyeswiki/index.cgi the openEyes wiki] discusses an open-source open-hardware toolkit for low-cost real-time eye tracking.<br />
* [http://communitywiki.org/odd/ComputerComponent/WikiNode Computer Component wiki] "for computer and electronics enthusiasts to learn and contribute to an online database of computer hardware and electronics with an emphasis on how-to guides." <br />
<!-- 2006-12-18: hard wiki is offline. * [http://hardwiki.com/ Hard wiki]:''needs wiki-node'' --><br />
* [http://nslu2-linux.org/ the NSLU2-Linux development group] seems to do a lot of wiring and soldering. ''needs wiki-node''<br />
* [http://wikidevices.org/ Wiki Devices] "a highly organized repository for objective information, as well as opinions on consumer electronics."<br />
* [http://wikiindex.com/Build_Your_Own_Arcade the Build Your Own Arcade controls wiki]<br />
* [http://geda.seul.org/wiki/ the gEDA wiki] discusses "the gEDA project" -- developing a full GPL‘d suite of Electronic Design Automation tools (electrical circuit design, schematic capture, simulation, prototyping, and printed circuit board (PCB) layout.<br />
<br />
* dorkbot: Artists, inventors, scientists, engineers. The exciting thing to me is to learn about strange things that creative people are doing around the world, with no regard for genre, style, school of thought, area of expertise, etc. ... committed to the idea of "availability over promotion", meaning their main concern is to help things exist, rather than making hits or selling lots of copies.<br />
** [http://mightyohm.com/wiki the mightyohm.com wiki] discusses where to get supplies and tools for working with electronics. The sysop is apparently a member of Dorkbot SF.<br />
** [http://projects.dorkbot.org/dorkbot-wiki the global dorkbot wiki]<br />
** [http://dorkbotpdx.org/ DorkbotPDX: people doing strange things with electricity] in Portland<br />
** [http://dorkbotlondon.org/wiki dorkbotlondon] in London<br />
** [http://dorkbot.noodlefactory.co.uk/wiki dorkbot ALBA wiki]<br />
<br />
* [http://en.wikibooks.org/wiki/Embedded_Systems the Embedded Systems wikibook]<br />
* [http://en.wikibooks.org/wiki/Practical_Electronics/PCB_Layout the Practical Electronics wikibook]<br />
* [http://sensorwiki.org/ the sensor wiki]<br />
* [http://linuxtv.org/wiki/ the LinuxTV wiki] occasionally has some chip-level information, such as the [http://linuxtv.org/wiki/index.php/I2c_Protocol I2C protocol] and [http://linuxtv.org/wiki/index.php/BT878 sampling analog data at 16 bits and 448000 Samples per second with a BT878 chip]<br />
* [http://howto.wikia.com/wiki/WikiNode WikiHowto] occasionally has electronic projects such as [http://howto.wikia.com/wiki/Howto_build_an_ultra_low_power_clock_with_a_large_period WikiHowto: Howto build an ultra low power clock with a large period]<br />
* [http://wiki.opengraphics.org/ The Open Graphics Project (OGP) is developing graphics cards with fully published specs and open source drivers.] Since the first version will be a FPGA, is also collecting information on FPGA programming and interfacing. Supported by [http://traversaltech.com/ Traversal Technology]. (''was at http://wiki.duskglow.com/ '')<br />
* [http://wikihost.org/wikis/openhardware/ the Open Hardware wiki] has electronics projects of various levels of complexity; the most complicated appears to be "KAD", a FPGA on a PCI card designed for reconfigurable computing.<br />
* [http://protel-users.org/ Protel users wiki], for people who design and draw schematics and circuit boards with Protel.<br />
<br />
==== CPU board wiki ====<br />
* various small CPU modules that have their own wiki (see also [[ARMUS Embedded Linux Board]] and other [[motherboards that run Linux]])<br />
** [http://elinux.org/WikiNode the embedded Linux wiki] has information on running Linux on several small ARM-based embedded systems. Also TexasInstruments OMAP processors.<br />
** [http://linuxrobots.org/wiki/WikiNode Linux Robots] -- robots that run Linux<br />
** [http://balloonboard.org/balloonwiki/WikiNode Balloonboard Wiki] for the Balloon Project. They have developed a small single-board computer that can run Linux. Also discusses "The Balloon Open Hardware License (BOHL) ... The license is intended as a general purpose open hardware license".<br />
** [http://docwiki.gumstix.org/ gumstix wiki] : "[http://docwiki.gumstix.org/Schematics Schematics and layouts for all gumstix expansion boards] are available under a Creative Commons license." ''needs wikinode''<br />
** [http://virtualcogs.com/wiki/ Virtual Cogs wiki] describes a CPU board that uses a stacking connector system.<br />
** [http://wiki.emqbit.com/free-ecb-at91 the emQbit wiki] discusses "The Free ECB_AT91 V1 is a Single Board Computer made by emQbit. You can download the specs and build your own." based on a 180 MHz ARM9 processor (Atmel AT91RM9200); runs Linux.<br />
** The BeagleBoard runs Linux. The [http://elinux.org/BeagleBoardBeginners embedded Linux wiki discusses BeagleBoard], and the [http://code.google.com/p/beagleboard/ BeagleBoard wiki at Google] also has good tips.<br />
** [http://arduino.cc/playground/ Arduino playground] discusses the Arduino board based on the Atmel AVR ATmega168. (See also the Atmel AVR wiki).<br />
** [http://wiki.elphel.com/ Elphel wiki] discusses the free software and open hardware inside [[Elphel camera]]s. That hardware includes a FPGA that handles video processing and video compression, and a ETRAX FS processor that runs Linux.<br />
** [http://wiki.leaflabs.com/ the LeafLabs Wiki] discusses the Maple, a [[Arduino Links | Arduino]]-compatible board that uses an [[ARM]] processor, and other stuff from [[LeafLabs]]. ''needs WikiNode''<br />
<br />
==== other related wiki ====<br />
<br />
* [http://openjtag.net/ the OpenJTAG wiki] ( http://openjtag.net/ )<br />
* [http://analogwiki.com/ the Analog wiki] "The Wiki for Design &amp; Verification Engineers by Design &amp; Verification Engineers."<br />
* [http://hardwarebook.info/ the Hardware Book. Internet's largest free collection of connector pinouts and cable descriptions.] ''needs WikiNode''<br />
* [https://isl.ncsa.uiuc.edu/twiki/bin/view/OpenFPGA the OpenFPGA wiki] ''needs WikiNode''<br />
* [https://devel.goto10.org/packets/wiki/CATkit the CATkit wiki: CATkit is an open hardware project] designed as a standalone interactive Forth computer for audio sound artists. (Based on Microchip PIC 18F).<br />
* [http://openbios.org/ the OpenBIOS project wiki] discusses several free and open source implementations of IEEE 1275-1994 (also called "Open Firmware"). Open Firmware allows expansion cards to provide a "boot ROM" that works all common platforms, like x86, AMD64, PowerPC, ARM and Mips.<br />
* [http://obook.info/ the OpenBook wiki] discusses OpenBook, an open source hardware and software project designing a computer tablet ... Everyone can contribute and help to shape the OpenBook hardware and software specifications.<br />
* [https://events.ccc.de/camp/2007/ Chaos Communication Camp wiki]<br />
* [http://tubeopedia.com/ Tubeopedia.com] discusses vacuum tube technology and science, circuits, theory, people and equipment related to vacuum tubes.<br />
* [http://opencircuitdesign.com/cgi-bin/wiki.pl OpenCircuitDesign.com , the other Open Circuit Wiki] discusses mostly free tools for designing integrated circuits.<br />
* [http://wiki.linux1394.org/ Linux1394 Wiki] discusses FireWire on Linux and related device drivers, tools, libraries, and hardware. ''needs wikinode''<br />
* [http://rfidguardian.org/ RFID Guardian wiki] discusses an open hardware project designed to guard privacy. ''needs wikinode''<br />
* [http://electronics.wikia.com/ Wikitronics wikia] ''needs wikinode''<br />
<br />
* [http://wiki.orbswarm.com/ Swarmwiki], a wiki for an open hardware group that build swarms of semi-autonomous spherical robots. ''needs wikinode''<br />
* [http://tgimboej.org/ tgimboej wiki] discusses The Great Internet Migratory Box Of Electronics Junk, and the "open source oriented hardware hackers" who receive it. ''needs wikinode''<br />
* [http://wiki.dataflow.ws The DataFlow wiki] is a wiki about art, new medias, electronics, interaction design, Python, PureData and other dataflow languages. <br />
* [http://wockets.wikispaces.com/ Wockets open-source hardware] is a wiki about developing low-cost sensors for measuring physical activity on mobile phones. <br />
* [http://www.synthesizers.com/pmwiki/pmwiki.php Synthesizers.com wiki] "up-to-date information about synthesizers, patches, modifications, etc." ''needs wikinode''<br />
* [http://code.google.com/p/bicycleledpov/w/list bicycleledpov wiki]: A bicycle visual LED artwork<br />
* [http://code.google.com/p/micropendous/ Micropendous wiki]: Open Hardware Development Boards for the Atmel's Full-Speed (12Mbit/s) USB AVR Microcontrollers (AT90USB162, ATmega32U4, AT90USB646, AT90USB1287)<br />
* [https://noisebridge.net/wiki/Noisebridge Noisebridge] Noisebridge is an infrastructure provider for technical-creative projects, collaboratively run by its members<br />
* [http://de.wikiants.org/WikiNode Wikiants do-it-yourself (in German)] has a section on [http://de.wikiants.org/Kategorie:Open_Hardware Wikiants: open hardware].<br />
* [http://qi-hardware.com/ Qi hardware wiki]: Qi's mission is to promote and encourage the development of copyleft hardware.<br />
<br />
<br />
----<br />
<br />
Please add closely-related wiki. Keep the 7 or so of the most-closely-related wiki.<br />
Move less-relevant wiki to WikiIndex.<br />
<br />
''Are any of the wiki listed at http://www.communitywiki.org/odd/SoftwareBazaar/MicrocontrollerProgramming relevant enough to list here?''<br />
<br />
[[Category:Community| ]]</div>112.205.235.54http://www.opencircuits.com/index.php?title=Main_Page&diff=21825Main Page2011-10-14T19:50:00Z<p>112.205.235.54: </p>
<hr />
<div>Open Circuits is a wiki for sharing [[open source electronics]] knowledge, schematics, board layouts, ports and parts libraries. Please help us to build this resource by submitting your descriptions, projects, instructions, techniques, board layouts, PCB footprints, and other documentation for electronics. This includes<br />
<br />
* [[Projects]]: open hardware [[Music Player]]s, [[atomic microscope]]s, [[PC]], [[PDA]], [[Open Mobile Gadgets|mobile phone]]s, etc.<br />
* [[Ideas]]: including [[Basic Circuits and Circuit Building Blocks]] -- Circuits you will use over and over.<br />
* [[Techniques]]: for doing things, often using [[hardware tool]]s or [[software tool]]s or both.<br />
* [[Components]]: Lists of components, where to purchase them, how to use them. For many components there are links to projects using that particular component, this is especially true for [[microcontroller]]s, for example follow the links down to PIC microcontrollers and you will find many project links as well as tutorials. General tips on [[connectors]], [[battery|batteries]], [[enclosures]], as well as more specific information on [[Popular Parts]].<br />
<br />
Many of the section titles are active links, click on them.<br />
* [[Test Equipment and Other Equipment]] See what is going on in your circuits, charge your batteries, etc.<br />
* [[Tutorials]] How to understand and [http://brooks-range.com/tarps/ lightweight tarps] plan what you are doing. These are for general theory, more specific information is linked to its topic.<br />
* [[PCB Footprints]] Don't reinvent the wheel. Known working open PCB footprints for various components.<br />
* [[HackerSpaces]] And hacker orgnizations. These are the white hat guys hacking electronics to make things. Includes DIY types, the people who read Make Magazine.<br />
* [[Got A Blog, Wiki or Website?]] Link to it on the [[Got A Blog, Wiki or Website?]] or [[WikiNode]] page.<br />
* [[Got a Technical Question?]] Perhaps it will be answered, perhaps not. Google for it first in the spirit of RTFM. Please do not ask us to do a school project for you.<br />
<br />
== [[Meta Open Source ]] ==<br />
Not projects or information on projects, but stuff about the open source movement ( mostly hardware ) itself.<br />
<br />
== [[Open Hardware Initiatives ]] ==<br />
The '''Open Source Movement''', typically covers '''Open Hardware''', '''Open Firmware''', and '''Open Software'''.<br />
<br />
'''Open Hardware''' is similar to '''[http://www.gnu.org/philosophy/free-sw.html Free] and [http://www.opensource.org/docs/definition.php Open Source Software]'''.<br />
<br />
The '''Open Firmware''' movement provides firmware (i.e.: micro-code specifically related to the subcoding of hardware devices) which you may also know as '''soft-IP''' or '''FPGA''' coding see [http://www.opencores.org Open Cores] for more details.<br />
<br />
Excellent examples of Open Hardware projects range from projects at ''OpenCircuits'' to [http://www.ethernut.de Tiny Embedded Ethernet Devices] and [http://www3.elphel.com Advanced & Intelligent Camera Designs] which provide solid-state camera and FPGA assisted hardware designs. A solid overview of projects can also be found at [http://open-innovation-projects.org/project-list/ Open Innovation Projects].<br />
<br />
== Licenses ==<br />
<br />
The most common "open hardware" licenses are the [http://creativecommons.org/licenses/ Creative Commons Licenses] and the [http://www.gnu.org/copyleft/gpl.html GNU General Public License].<br />
The GNU people wrote the [http://www.gnu.org/licenses/gpl-faq.html#DoesTheGPLAllowMoney the GPL FAQ]<br />
to deal with common questions and misunderstandings of the GPL.<br />
The GNU people go on to say<br />
: "We encourage people who redistribute free software to charge as much as they wish or can. If this seems surprising to you, [http://www.gnu.org/philosophy/selling.html please read on." -- GNU: "Selling Free Software"]<br />
<br />
For example, Linksys makes money selling (among other things) their [http://en.wikipedia.org/wiki/Linksys_WRT54G_series Linksys WRT54G series] routers, which use Linux under the GPL license.<br />
<br />
To understand what your entitlements and responsibilities are under the applicable license(s); each hardware, firmware and/or software piece <span class="plainlinks">[http://www.pilloha.com/ <span style="color:black;font-weight:normal;text-decoration:none!important;background:none!important; text-decoration:none;/*CITATION*/">throw pillows</span>]</span> you have either copied, modified, developed using tools provided or if you intend distributing your development, you '''MUST''' read each and every license, and be specifically aware that you may not mix such license(s) together unless they can co-exist under one umbrella license. For example you may modify, copy, enhance and distribute parts your project which are all under the same license e.g.: or .<br />
<br />
Some people are working on licenses that are specifically designed for "open hardware".<br />
"Open Source Hardware (OSHW) Draft Definition 1.0"[http://freedomdefined.org/OSHW].<br />
Wikipedia: "Open Hardware License"[http://daivx.webchuyennghiep.net/dam-cong-so-cho-mua-he]<br />
mentions<br />
"CERN Open Hardware License"[http://en.wikipedia.org/wiki/CERN_Open_Hardware_License][http://www.ohwr.org/documents/88]<br />
and the "TAPR Open Hardware License"[http://en.wikipedia.org/wiki/TAPR_Open_Hardware_License].<br />
David L. Jones has a short video that discusses open-source hardware[http://www.eevblog.com/2011/08/12/eevblog-195-open-source-hardware-explained/] and mentions several licenses, including the<br />
CERN Open Hardware Licence[http://www.ohwr.org/projects/cernohl/wiki].<br />
<br />
== Help Us Make Open Circuits Better ==<br />
<br />
What are we:<br />
<br />
Looks like we are defining this by way of who contributes and what. I ( [[russ_hensel]] ) am a new member so may or may not have it right.<br />
This is what I think:<br />
<br />
*An introduction to Electronic theory, suitable for the hobbyist.<br />
<br />
*Guide to locating and using components and tools.<br />
<br />
*Details on how to build various projects.<br />
<br />
*Building some sense of community among builders.<br />
<br />
There are two means of carrying this out:<br />
<br />
*Write material for the site or<br />
<br />
*Link to material you may have written or have located on the web. There is so much stuff on the web that lets not write it here unless it is at least somewhat unique. <br />
<br />
What do you think, discuss it here if very general, else on the discussion page ( link at top of page ).<br />
<br />
See also:<br />
<br />
*[[We love volunteers]]<br />
*[[Help:contents]]<br />
*[[Spam]] What should we do about it, it is a real problem now ( Feb 08 ).<br />
<br />
<br />
__NOTOC__</div>112.205.235.54http://www.opencircuits.com/index.php?title=OpenCircuits:Community_portal&diff=21823OpenCircuits:Community portal2011-10-14T10:34:53Z<p>112.205.235.54: </p>
<hr />
<div>Welcome to Open Circuits.<br />
This is a good place to talk about Open Circuits, as a whole.<br />
<br />
We have {{NUMBEROFARTICLES}} articles now. Yay!<br />
<br />
== Help, noob looking to get into electronics ==<br />
<br />
I want to create an open hardware smartphone... but I don't know anything about electronics... yet...<br />
Someone care to help? I just need to be pointed in the right direction<br />
<br />
I'm guessing i just need to create some sort of small computer running linux??<br />
<br />
Thanks =)<br />
<br />
<br />
--[[User:RenatoFontes|RenatoFontes]] 00:54, 11 February 2011 (UTC)<br />
<br />
== Upgrade to Mediawiki 1.15.1 ==<br />
<br />
Mediawiki has been upgraded to version 1.15.1 ([http://lists.wikimedia.org/pipermail/mediawiki-announce/2009-July/000087.html release notes]).<br />
<br />
Please test your favorite MediaWiki functionality and use this page to report any issues you come across.<br />
<br />
[[User:Chazegh|Chazegh]] 23:57, 17 August 2009 (UTC)<br />
<br />
== free digital TV converter box coupon ==<br />
<br />
https://www.dtv2009.gov/<br />
<br />
== Anti-Vandalism Bot ==<br />
<br />
''moved to our page discussing [[Spam]].''<br />
<br />
== electrical mailing lists ==<br />
Yahoo claims they have<br />
[http://dir.groups.yahoo.com/dir/Science/Engineering/Electrical 1,831 electrical engineering mailing lists].<br />
What would be a good way <span class="plainlinks">[http://www.bestpills4weightloss.com/tone-detox-review.html <span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">tone detox weight loss pill</span>] of letting the people on those lists know about the Open Circuits wiki, without spamming them?<br />
--[[User:DavidCary|DavidCary]] 13:30, 31 May 2006 (PDT)<br />
<br />
* Publish cold fusion howto :-)<br />
* Send one email/week and only once per list. And be on topic, listen carefully for responses.<br />
[[User:Freqmax|Freqmax]] 16:24, 30 July 2007 (PDT)<br />
<br />
== about Open Circuits ==<br />
So, is there any connection between http://OpenCircuits.org/ , http://OpenCircuits.net/ , and this http://OpenCircuits.com/ wiki?<br />
--[[User:DavidCary|DavidCary]] 23:47, 13 June 2006 (PDT)<br />
<br />
No. There is no connection between any of http://opencircuits.com and the other websites listed.<br />
[[User:Chazegh|Chazegh]] 02:55, 18 June 2006 (PDT)<br />
== web rings ==<br />
Document an original microcontroller project and join a PIC webring, or AVR webring. 20 June 2006<br />
<br />
== audio electronics ==<br />
<br />
Is there some other wiki for people to talk about audio electronics?<br />
Or is this Open Circuits the best wiki for talking about things like<br />
''"[http://analog.com/ Analog Devices] AN-221: The Alexander current-feedback audio power amplifier"'' by Mark Alexander<br />
?<br />
<br />
I think I would prefer to offload all the audio electronics controversies to some other wiki<br />
(but which one?).<br />
Still, it would be nice to have some "tips for high-power electronics" here.<br />
I imagine that tips page would list the various quirks of high-power MOSFETs, BJTs, TRIACs, and IGBTs,<br />
and (given a particular motor or speaker or other load)<br />
how to select one over the others,<br />
and various ways of working around those quirks.<br />
--[[User:65.70.89.241|65.70.89.241]] 07:17, 10 August 2006 (PDT)<br />
<br />
I just joined Open Circuits. I have been servicing and designing audio equipment for several years (Recording consoles a specialty) I hope you will have a section for audio electronics. I also work with video projection systems and theatrical lighting (stage struck at an early age) I play electric rock-blues guitar, so I also am interested in tube guitar amps (Marshall and Boogie). And there is a big difference in what a guitar player thinks an amp should do, and what a recording engineer wants an amp for. I think these are valid points for discussion.<br />
I've also got an interest in power supplies (my experience is mostly with linear, but I've started learning about switching designs). In fact that brings me to my question, I have some regulator designs based on the 723 that I'd like to share. How do I go about doing that? I built a replacement for a console /- 18V @6A supply when I couldn't find the original regulator devices. I used 723s with external series pass devices. The unit has been working for close to 10 years now, so I think the design is worth sharing. Is anyone interested? <br />
<br />
I also research discrete op amps like the Jensen 990. I've been working (on and off for years) on a clone of that using more modern, easily available parts and devices. Anyone else?<br />
Finally, in response to the first entry in this section, I too read that application note in Analog Devices Audio/Video Reference Manual. My copy is dated 1992. I've repaired a lot of amplifiers, but haven't built any. If anyone else is hip to this amp I'd like to hear about it. It is a very unique design. I also like the A75 amp design from Nelson Pass and Norman Thagard, and the Leach Amp by Marshall Leach. The last two are pretty normal as far as design goes, not as adventurous as the Alexander with its current-feedback approach.<br />
Aloha, RAF--[[User:66.8.194.185|66.8.194.185]] 14:04, 18 May 2007 (PDT)<br />
<br />
== automotive electronics ==<br />
<br />
Is there some other wiki for people to talk about automobile electronics?<br />
Or is this Open Circuits the best wiki for talking about things like<br />
[http://megamanual.com/ "experimental Do-It-Yourself programmable electronic fuel injection controller"]?<br />
Or should we just point people who want to talk ECUs (engine control units) to the <br />
[http://msefi.com/ MSEFI discussion forum],<br />
even though it sadly lacks a wiki?<br />
--[[User:DavidCary|DavidCary]] 22:36, 2 July 2007 (PDT)<br />
<br />
How about converting a car to EV - Electrical vehicle, how to build an electrical motor controller? DC or 3-phase AC controller..<br />
Mr. Holland<br />
<br />
== inviting bloggers to open circuits ==<br />
<br />
=== how to connect a JTAG probe to a Nokia phone ===<br />
<br />
I'd like to invite bloggers such as GyrosGeier to edit OpenCircuits.<br />
Rather than just spamming him, I think he would be more inclined to help out<br />
if we answered one of his questions first -- such as<br />
[http://hogyros.de/?q=node/167 "If you have information on how to connect a JTAG probe to a Nokia phone, please let me know."]<br />
Maybe I should start a page on [[JTAG]]...<br />
--[[User:DavidCary|DavidCary]] 09:37, 22 September 2006 (PDT)<br />
<br />
The [http://hackedgadgets.com/ Hacked Gadgets blog also has a bunch of cool electronics].<br />
--[[User:DavidCary|DavidCary]] 11:58, 5 January 2007 (PST)<br />
<br />
== red links ==<br />
<br />
The default skin at OpenCircuits currently has "red links" = page exists, "dark red links" = page does not exist.<br />
<br />
I find that confusing. (But not as bad as the wiki that has some links black-on-white, indistinguishable from normal text).<br />
<br />
'''work-around''': Register (it's free, and you don't have to give any personal information), then choose the "preferences" link in the far upper-right corner and then pick any other skin.<br />
<br />
The other skins have coloring that you may be more used to from other wiki: "blue links" = page exists, "red links" = page does not exist.<br />
<br />
--[[User:DavidCary|DavidCary]] 08:58, 18 December 2006 (PST)<br />
<br />
The colors are better in the other skins, but the navigation is worse. <br />
How about a new skin that is like the default when it comes to navigation, but uses the normal wiki colors? // [[User:Cj|Cj]] 06:45, 4 October 2008 (PDT) <br />
<br />
<br />
<br />
*** Guys, the red color on links is AwuFul, it brings ppl headaches.<br />
That's the only reason I cant participate ***<br />
<br />
--[[User:Takeda|Takeda]] 16:38, 29 September 2007 (PDT)<br />
<br />
== inviting people from other forums to open circuits ==<br />
<br />
Lots of people talk about circuits for LED lighting at<br />
http://candlepowerforums.com/<br />
.<br />
Perhaps we can talk some of them into contributing here -- perhaps using a page or two of Open Circuits as a FAQ for LEDs and drive circuits.<br />
<br />
== tool lists ==<br />
<br />
Should we have an entire page on "tools", and mention it on the main page?<br />
That risks listing *every* tool anyone has ever heard about,<br />
like the page at<br />
http://massmind.org/techref/tools.htm<br />
.<br />
Yes, I'm responsible for uglier bits on that page;<br />
I think the wide variety of oscilloscopes are particularly confusing.<br />
How could we cut through the confusion?<br />
<br />
I see the "techniques" page already has a list of software tools.<br />
Perhaps it would be nifty to have a short list of all the tools necessary for each technique?<br />
Then a beginner would have a better idea of what tools he really needs to get (rather than looking at a huge list of every tool, and wondering for each one, ''"Am I going to regret buying it when I see it gathering dust? Or am I going to regret not buying it when I need it during a midnight debug session?"'').<br />
<br />
--[[User:DavidCary|DavidCary]] 08:37, 24 January 2007 (PST)<br />
<br />
== Requests For Help ==<br />
Thanks for your help with the camcorder mic.<br />
<br />
== sample component ==<br />
<br />
What is the purpose of the [[Sample Component]] ?<br />
--[[User:DavidCary|DavidCary]] 16:27, 7 May 2007 (PDT)<br />
<br />
----<br />
<br />
<br />
== current surge and battery life ==<br />
<br />
Hi, <br />
<br />
currently my board is using a 3V battery, in every 40msec it will turn on its RF to communicate with the base station. I face a problem here is that my battery life is badly affected. Turning on the RF with cause a current surge. <br />
<br />
Will this surge affect my battery life? If I use a supercapacitor does it helps?<br />
<br />
-- [[User:203.120.164.208]] 04:14, 30 April 2007<br />
<br />
<br />
== MIDI electrical interface ==<br />
<br />
In my opinion, the MIDI interface got a lot of things right that too many later interfaces still trip over.<br />
<br />
* http://www.repairfaq.org/filipg/LINK/F_MIDI.html -- ASCII schematics<br />
* http://www.engadget.com/2005/08/30/how-to-control-csound-with-a-custom-midi-controller-hardware/ -- hand-sketched schematics<br />
* http://www.midi.org/about-midi/electrical.shtml "MIDI Electrical Specification Diagram &amp; Proper Design of Joystick/MIDI Adapters" -- well-drawn schematics<br />
* [http://en.wikipedia.org/wiki/The_MIDI_1.0_Protocol Wikipedia: The MIDI 1.0 Protocol]<br />
* http://en.wikibooks.org/wiki/Behringer_FCB1010_MIDI_Pedal<br />
<br />
It may look simple, but too often people try to "improve" it by adding or removing things without understanding, ending up with a worse system.<br />
<br />
Is there any other wiki that is more appropriate for explaining the low-level details of the MIDI electrical interface, and *why* it was done that way?<br />
<br />
I would be most interested in discussing new communication interfaces -- but is this really the right wiki?<br />
Or would http://en.wikibooks.org/wiki/Serial_Programming or the [http://interwiki.sourceforge.net/cgi-bin/picawiki.pl/StartingPoint PICA wiki] be better for discussing improvements?<br />
--[[User:DavidCary|DavidCary]] 13:21, 21 June 2007 (PDT)<br />
<br />
== IC design ==<br />
<br />
What do you think about<br />
http://makeyourownchip.com/<br />
?<br />
Should we talk about VLSI design ([http://david.carybros.com/html/vlsi.html "VLSI: designing electronic chips"])<br />
here at Open Circuits?<br />
Or is there a more appropriate wiki somewhere else?<br />
--[[User:DavidCary|DavidCary]] 15:59, 26 June 2007 (PDT)<br />
<br />
== electronics infoline ==<br />
<br />
So have you seen<br />
"Free electronics projects"<br />
http://electronicsinfoline.com/<br />
"with Photo Preview"<br />
?<br />
--[[User:DavidCary|DavidCary]] 00:28, 1 July 2007 (PDT)<br />
<br />
And you will be interested in <br />
"online circuit diagrams creation"<br />
http://www.dz863.com/<br />
"for free"<br />
?<br />
<br />
== generating a netlist with a "C++" program ==<br />
<br />
The [http://positron.ps.uci.edu/~pier/csc/sup/Support.html "Support Electronics for ATLAS Muon CSC"] documentation claims that [http://positron.ps.uci.edu/~pier/csc/sup/CRB_LayoutNotes0.pdf "The design was captured with C++. There are no schematics."] and lists [http://positron.ps.uci.edu/~pier/csc/sup/crb_srce the C++ source code].<br />
<br />
How did they do that?<br />
--[[User:DavidCary|DavidCary]] 01:15, 3 July 2007 (PDT)<br />
<br />
== rocket electronics ==<br />
<br />
Is there another wiki that talks about rocket electronics?<br />
Or is this Open Circuits the best place to talk about<br />
ground support electronics<br />
(such as [http://www.ukrocketman.com/rocketry/controller.shtml Launch Controller]s)<br />
and <br />
onboard electronics<br />
(such as one<br />
[http://www.ukrocketman.com/rocketry/compactrdasguide.shtml flight computer]<br />
or another<br />
[http://david.carybros.com/html/schematic.html#flight_computer flight computer]<br />
)?<br />
--[[User:DavidCary|DavidCary]] 14:21, 15 July 2007 (PDT)<br />
<br />
Hey David,<br />
<br />
In case you haven't heard of it for some strange reason, [http://www.hackaday.com Hack-a-Day] has <br />
featured a fair number of rocketry projects over the years, and many of their articles on said <br />
projects link back to the original project webpages.<br />
<br />
--[[User:Purduecer|Purduecer]] 13:52, 10 April 2009 (UTC)<br />
<br />
== Minimig ==<br />
I have created pages about the [[Minimig]] project which is running an Amiga 500 in a Xilinx FPGA. It's rather a work in progress, than a static documentation. I hope nobody minds. [[User:Freqmax|Freqmax]] 18:35, 27 July 2007 (PDT)<br />
<br />
== Open Science ==<br />
<br />
So does/should Open Science ( http://openscience.org/ ) have any relation to Open Circuits ?<br />
--[[User:68.0.120.35|68.0.120.35]] 00:13, 5 August 2007 (PDT)<br />
<br />
== LaTEX math markup ==<br />
<br />
I wrote a quick howto on figuring out resistor values, but it looks bad without latex math markup enabled.<br />
Here's what I wrote as it appears on open circuits: http://www.opencircuits.com/Talk:Relays<br />
Here's how it appears on wikipedia (with math markup enabled): http://en.wikipedia.org/wiki/User:Mzandrew/Sandbox<br />
<br />
Anyone know if this is a quick thing to enable for open circuits or if it's involved?<br />
<br />
[[User:Mzandrew|Mzandrew]] 14:16, 8 September 2007 (PDT)<br />
<br />
<div style="clear:both;border:1px dotted #333;padding:10px;background:#FFE400;color:#333;margin-top:10px;margin-bottom:10px;">DONE! -- [[User:Chazegh|Chazegh]] 00:10, 11 March 2008 (PDT)</div><br />
<br />
----<br />
<br />
'''SPAM DELETED!'''<br />
<br />
I deleted a whole bunch of links that had been placed at the top of this page, probably by the same AH that did it to my page. I think the best solution would be to make it so no edits are possible without being logged in. Then there will be a record of who does this kind of thing. Then they can be banned from the site. I don't think that defeats the purpose of an open wiki environment, it simply means you have to register to contribute.<br />
<br />
--[[User:RogerAF|RAF]] 10:30, 21 December 2007 (PST)<br />
<br />
At least this page is still OK. The Spam AHole hit my user talk page again today. This is very aggravating.<br />
<br />
--[[User:RogerAF|RAF]] 06:54, 22 December 2007 (PST)<br />
<br />
: ''I agree. Annoying. I'm starting to "semi-protect" most pages so they can only be edited by logged-in users. I'm leaving a couple of pages wide open as a honeypot and/or test pages, so I can make tests and ban spammers without touching good pages. I think the $wgSpamRegex and/or ReCAPTCHA would be a better way to deal with spam. But my attempt to set them up isn't working yet. Sorry. --[[User:DavidCary|DavidCary]] 10:28, 3 January 2008 (PST)''<br />
<br />
== Release 2.0 ==<br />
<br />
[http://radar.oreilly.com/archives/2007/12/new_release_20_3.html New Release 2.0: Open Source Hardware] by Jimmy Guterman<br />
<br />
Does Guterman know about Open Circuits yet?<br />
--[[User:DavidCary|DavidCary]] 01:04, 4 January 2008 (PST)<br />
<br />
== tech-assist ==<br />
<br />
Should we invite the nice people at tech-assist<br />
http://tech-assist.org/<br />
to use the Open Circuits wiki?<br />
--[[User:DavidCary|DavidCary]] 20:38, 15 January 2008 (PST)<br />
<br />
== A post I left at the Schmartboard mailing list. ==<br />
<br />
Last week I posted to the Schmartboard mailing list asking about more interface types for their system.<br />
I made reference to sites like this and pleaded the case of individuals wishing to make projects that interface a little better than the methods available now. Neal Greenburg(VP in sales) replied that they had been kicking ideas around like what I was proposing for a while, and that he would like to get some feedback. So, if you're interested, head on over and pipe in. The basic request I made was asking for common internal pc interfaces(PCI, PCI-e, AGP, ISA, etc..) to be included as an attachable module.<br />
<br />
The reason for my request was that this would allow organizations such as this one to develop hardware that is now unachievable at a decent prototyping price(quantities in the single digits). Their modules allow robust SMD hardware to be hand soldered and connected to other modules, but interfacing to a pc or other system is limited to rs232. I left a much more in depth post there, and if you're interested, you can find it there.<br />
<br />
http://tech.groups.yahoo.com/group/schmartboardsv/<br />
<br />
I'm not affiliated with schmartboard in any other way than as a customer. I'm sorry if this is seen as spam, it's not intended to be. If the general consensus is that this is spam, feel free to delete it.<br />
<br />
Thanks for your time, take care.<br />
[[User:Jonkopp|Jonkopp]] 13:49, 20 January 2008 (PST)<br />
<br />
<br />
== open source machine ==<br />
<br />
Is there some other wiki somewhere that would be better for discussing "open source hardware designs" for non-electronic mechanical hardware, such as<br />
http://opensourcemachine.org/<br />
?<br />
--[[User:DavidCary|DavidCary]] 05:52, 26 June 2008 (PDT)<br />
:: http://groups.google.com/group/openmanufacturing :-) 2008-11-28<br />
<br />
== confused ==<br />
<br />
What is up with<br />
[[User talk:Sunnyhouselife]], [[User talk:Kaylee]], [[User talk:Seekic]]<br />
?<br />
I'm guessing that English is not their native language.<br />
--[[User:DavidCary|DavidCary]] 08:08, 10 July 2008 (PDT)<br />
<br />
== ultrasonic ==<br />
<br />
Is there a better wiki to discuss [[ultrasonic]] stuff?<br />
Such as:<br />
[http://www.brooker.co.za/fers/ "FERS: the Flexible, Extensible Radar and Sonar Simulator."]<br />
<br />
== COSHER ==<br />
<br />
"COSHER stands for Completely Open Source, Headers, Engineering, and Research."<br />
-- http://wearcam.org/cosher.htm<br />
<br />
Can we apply COSHER to [[open hardware]], or does it only apply to software?<br />
--[[User:DavidCary|DavidCary]] 04:31, 2 February 2010 (UTC)<br />
<br />
== Quad Helicopter ==<br />
<br />
Hello, I am starting a project to build a multi-rotor helicopter (starting with a 4 motor one and moving up). I am planning on developing everything from scratch. If you are a software programmer (linux), or a mechanical engineer, and want to help out with the project let me know! I got a site where the progress can be tracked and coordinated, http://wwww.quadheli.com<br />
<br />
Cheers!<br />
<br />
Sounds like a cool project.<br />
Would it help to make a wiki page for it at [[multi-rotor]]?<br />
--[[User:DavidCary|DavidCary]] 17:12, 9 April 2010 (UTC)</div>112.205.235.54http://www.opencircuits.com/index.php?title=Main_Page&diff=21809Main Page2011-10-08T07:42:31Z<p>112.205.235.54: </p>
<hr />
<div>Open Circuits is a wiki for sharing [[open source electronics]] knowledge, schematics, board layouts, ports and parts libraries. Please help us to build this resource by submitting your descriptions, projects, instructions, techniques, board layouts, PCB footprints, and other documentation for electronics. This includes<br />
<br />
* [[Projects]]: open hardware [[Music Player]]s, [[atomic microscope]]s, [[PC]], [[PDA]], [[Open Mobile Gadgets|mobile phone]]s, etc.<br />
* [[Ideas]]: including [[Basic Circuits and Circuit Building Blocks]] -- Circuits you will use over and over.<br />
* [[Techniques]]: for doing things, often using [[hardware tool]]s or [[software tool]]s or both.<br />
* [[Components]]: Lists of components, where to purchase them, how to use them. For many components there are links to projects using that particular component, this is especially true for [[microcontroller]]s, for example follow the links down to PIC microcontrollers and you will find many project links as well as tutorials. General tips on [[connectors]], [[battery|batteries]], [[enclosures]], as well as more specific information on [[Popular Parts]].<br />
<br />
Many of the section titles are active links, click on them.<br />
* [[Test Equipment and Other Equipment]] See what is going on in your circuits, charge your batteries, etc.<br />
* [[Tutorials]] How to understand and plan what you are doing. These are for general theory, more specific information is linked to its topic.<br />
* [[PCB Footprints]] Don't reinvent the wheel. Known working open PCB footprints for various components.<br />
* [[HackerSpaces]] And hacker orgnizations. These are the white hat guys hacking electronics to make things. Includes DIY types, the people who read Make Magazine.<br />
* [[Got A Blog, Wiki or Website?]] Link to it on the [[Got A Blog, Wiki or Website?]] or [[WikiNode]] page.<br />
* [[Got a Technical Question?]] Perhaps it will be answered, perhaps not. Google for it first in the spirit of RTFM. Please do not ask us to do a school project for you.<br />
* [http://brooks-range.com/tarps/ lightweight tarps]<br />
<br />
== [[Meta Open Source ]] ==<br />
Not projects or information on projects, but stuff about the open source movement ( mostly hardware ) itself.<br />
<br />
== [[Open Hardware Initiatives ]] ==<br />
The '''Open Source Movement''', typically covers '''Open Hardware''', '''Open Firmware''', and '''Open Software'''.<br />
<br />
'''Open Hardware''' is similar to '''[http://www.gnu.org/philosophy/free-sw.html Free] and [http://www.opensource.org/docs/definition.php Open Source Software]'''.<br />
<br />
The '''Open Firmware''' movement provides firmware (i.e.: micro-code specifically related to the subcoding of hardware devices) which you may also know as '''soft-IP''' or '''FPGA''' coding see [http://www.opencores.org Open Cores] for more details.<br />
<br />
Excellent examples of Open Hardware projects range from projects at ''OpenCircuits'' to [http://www.ethernut.de Tiny Embedded Ethernet Devices] and [http://www3.elphel.com Advanced & Intelligent Camera Designs] which provide solid-state camera and FPGA assisted hardware designs. A solid overview of projects can also be found at [http://open-innovation-projects.org/project-list/ Open Innovation Projects].<br />
<br />
== Licenses ==<br />
<br />
The most common "open hardware" licenses are the [http://creativecommons.org/licenses/ Creative Commons Licenses] and the [http://www.gnu.org/copyleft/gpl.html GNU General Public License].<br />
The GNU people wrote the [http://www.gnu.org/licenses/gpl-faq.html#DoesTheGPLAllowMoney the GPL FAQ]<br />
to deal with common questions and misunderstandings of the GPL.<br />
The GNU people go on to say<br />
: "We encourage people who redistribute free software to charge as much as they wish or can. If this seems surprising to you, [http://www.gnu.org/philosophy/selling.html please read on." -- GNU: "Selling Free Software"]<br />
<br />
For example, Linksys makes money selling (among other things) their [http://en.wikipedia.org/wiki/Linksys_WRT54G_series Linksys WRT54G series] routers, which use Linux under the GPL license.<br />
<br />
To understand what your entitlements and responsibilities are under the applicable license(s); each hardware, firmware and/or software piece <span class="plainlinks">[http://www.pilloha.com/ <span style="color:black;font-weight:normal;text-decoration:none!important;background:none!important; text-decoration:none;/*CITATION*/">throw pillows</span>]</span> you have either copied, modified, developed using tools provided or if you intend distributing your development, you '''MUST''' read each and every license, and be specifically aware that you may not mix such license(s) together unless they can co-exist under one umbrella license. For example you may modify, copy, enhance and distribute parts your project which are all under the same license e.g.: or .<br />
<br />
Some people are working on licenses that are specifically designed for "open hardware".<br />
"Open Source Hardware (OSHW) Draft Definition 1.0"[http://freedomdefined.org/OSHW].<br />
Wikipedia: "Open Hardware License"[http://daivx.webchuyennghiep.net/dam-cong-so-cho-mua-he]<br />
mentions<br />
"CERN Open Hardware License"[http://en.wikipedia.org/wiki/CERN_Open_Hardware_License][http://www.ohwr.org/documents/88]<br />
and the "TAPR Open Hardware License"[http://en.wikipedia.org/wiki/TAPR_Open_Hardware_License].<br />
David L. Jones has a short video that discusses open-source hardware[http://www.eevblog.com/2011/08/12/eevblog-195-open-source-hardware-explained/] and mentions several licenses, including the<br />
CERN Open Hardware Licence[http://www.ohwr.org/projects/cernohl/wiki].<br />
<br />
== Help Us Make Open Circuits Better ==<br />
<br />
What are we:<br />
<br />
Looks like we are defining this by way of who contributes and what. I ( [[russ_hensel]] ) am a new member so may or may not have it right.<br />
This is what I think:<br />
<br />
*An introduction to Electronic theory, suitable for the hobbyist.<br />
<br />
*Guide to locating and using components and tools.<br />
<br />
*Details on how to build various projects.<br />
<br />
*Building some sense of community among builders.<br />
<br />
There are two means of carrying this out:<br />
<br />
*Write material for the site or<br />
<br />
*Link to material you may have written or have located on the web. There is so much stuff on the web that lets not write it here unless it is at least somewhat unique. <br />
<br />
What do you think, discuss it here if very general, else on the discussion page ( link at top of page ).<br />
<br />
See also:<br />
<br />
*[[We love volunteers]]<br />
*[[Help:contents]]<br />
*[[Spam]] What should we do about it, it is a real problem now ( Feb 08 ).<br />
<br />
<br />
__NOTOC__</div>112.205.235.54http://www.opencircuits.com/index.php?title=Main_Page&diff=21804Main Page2011-10-02T05:48:01Z<p>112.205.235.54: </p>
<hr />
<div>Open Circuits is a wiki for sharing [[open source electronics]] knowledge, schematics, board layouts, ports and parts libraries. Please help us to build this resource by submitting your descriptions, projects, instructions, techniques, board layouts, PCB footprints, and other documentation for electronics. This includes<br />
<br />
* [[Projects]]: open hardware [[Music Player]]s, [[atomic microscope]]s, [[PC]], [[PDA]], [[Open Mobile Gadgets|mobile phone]]s, etc.<br />
* [[Ideas]]: including [[Basic Circuits and Circuit Building Blocks]] -- Circuits you will use over and over.<br />
* [[Techniques]]: for doing things, often using [[hardware tool]]s or [[software tool]]s or both.<br />
* [[Components]]: Lists of components, where to purchase them, how to use them. For many components there are links to projects using that particular component, this is especially true for [[microcontroller]]s, for example follow the links down to PIC microcontrollers and you will find many project links as well as tutorials. General tips on [[connectors]], [[battery|batteries]], [[enclosures]], as well as more specific information on [[Popular Parts]].<br />
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Many of the section titles are active links, click on them.<br />
* [[Test Equipment and Other Equipment]] See what is going on in your circuits, charge your batteries, etc.<br />
* [[Tutorials]] How to understand and plan what you are doing. These are for general theory, more specific information is linked to its topic.<br />
* [[PCB Footprints]] Don't reinvent the wheel. Known working open PCB footprints for various components.<br />
* [[HackerSpaces]] And hacker orgnizations. These are the white hat guys hacking electronics to make things. Includes DIY types, the people who read Make Magazine.<br />
* [[Got A Blog, Wiki or Website?]] Link to it on the [[Got A Blog, Wiki or Website?]] or [[WikiNode]] page.<br />
* [[Got a Technical Question?]] Perhaps it will be answered, perhaps not. Google for it first in the spirit of RTFM. Please do not ask us to do a school project for <span class="plainlinks">[http://thebeginnerslens.com/ <span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">iphone photography</span>]<br />
you.<br />
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== [[Meta Open Source ]] ==<br />
Not projects or information on projects, but stuff about the open source movement ( mostly hardware ) itself.<br />
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== [[Open Hardware Initiatives ]] ==<br />
The '''Open Source Movement''', typically covers '''Open Hardware''', '''Open Firmware''', and '''Open Software'''.<br />
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'''Open Hardware''' is similar to '''[http://www.gnu.org/philosophy/free-sw.html Free] and [http://www.opensource.org/docs/definition.php Open Source Software]'''.<br />
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The '''Open Firmware''' movement provides firmware (i.e.: micro-code specifically related to the subcoding of hardware devices) which you may also know as '''soft-IP''' or '''FPGA''' coding see [http://www.opencores.org Open Cores] for more details.<br />
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Excellent examples of Open Hardware projects range from projects at ''OpenCircuits'' to [http://www.ethernut.de Tiny Embedded Ethernet Devices] and [http://www3.elphel.com Advanced & Intelligent Camera Designs] which provide solid-state camera and FPGA assisted hardware designs. A solid overview of projects can also be found at [http://open-innovation-projects.org/project-list/ Open Innovation Projects].<br />
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== Licenses ==<br />
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The most common "open hardware" licenses are the [http://creativecommons.org/licenses/ Creative Commons Licenses] and the [http://www.gnu.org/copyleft/gpl.html GNU General Public License].<br />
The GNU people wrote the [http://www.gnu.org/licenses/gpl-faq.html#DoesTheGPLAllowMoney the GPL FAQ]<br />
to deal with common questions and misunderstandings of the GPL.<br />
The GNU people go on to say<br />
: "We encourage people who redistribute free software to charge as much as they wish or can. If this seems surprising to you, [http://www.gnu.org/philosophy/selling.html please read on." -- GNU: "Selling Free Software"]<br />
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For example, Linksys makes money selling (among other things) their [http://en.wikipedia.org/wiki/Linksys_WRT54G_series Linksys WRT54G series] routers, which use Linux under the GPL license.<br />
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To understand what your entitlements and responsibilities are under the applicable license(s); each hardware, firmware and/or software piece <span class="plainlinks">[http://www.pilloha.com/ <span style="color:black;font-weight:normal;text-decoration:none!important;background:none!important; text-decoration:none;/*CITATION*/">throw pillows</span>]</span> you have either copied, modified, developed using tools provided or if you intend distributing your development, you '''MUST''' read each and every license, and be specifically aware that you may not mix such license(s) together unless they can co-exist under one umbrella license. For example you may modify, copy, enhance and distribute parts your project which are all under the same license e.g.: or .<br />
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Some people are working on licenses that are specifically designed for "open hardware".<br />
"Open Source Hardware (OSHW) Draft Definition 1.0"[http://freedomdefined.org/OSHW].<br />
Wikipedia: "Open Hardware License"[http://daivx.webchuyennghiep.net/dam-cong-so-cho-mua-he]<br />
mentions<br />
"CERN Open Hardware License"[http://en.wikipedia.org/wiki/CERN_Open_Hardware_License][http://www.ohwr.org/documents/88]<br />
and the "TAPR Open Hardware License"[http://en.wikipedia.org/wiki/TAPR_Open_Hardware_License].<br />
David L. Jones has a short video that discusses open-source hardware[http://www.eevblog.com/2011/08/12/eevblog-195-open-source-hardware-explained/] and mentions several licenses, including the<br />
CERN Open Hardware Licence[http://www.ohwr.org/projects/cernohl/wiki].<br />
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== Help Us Make Open Circuits Better ==<br />
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What are we:<br />
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Looks like we are defining this by way of who contributes and what. I ( [[russ_hensel]] ) am a new member so may or may not have it right.<br />
This is what I think:<br />
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*An introduction to Electronic theory, suitable for the hobbyist.<br />
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*Guide to locating and using components and tools.<br />
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*Details on how to build various projects.<br />
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*Building some sense of community among builders.<br />
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There are two means of carrying this out:<br />
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*Write material for the site or<br />
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*Link to material you may have written or have located on the web. There is so much stuff on the web that lets not write it here unless it is at least somewhat unique. <br />
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What do you think, discuss it here if very general, else on the discussion page ( link at top of page ).<br />
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See also:<br />
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*[[We love volunteers]]<br />
*[[Help:contents]]<br />
*[[Spam]] What should we do about it, it is a real problem now ( Feb 08 ).<br />
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