CERN Open Hardware Licence

The CERN OHL licence was created as an initiative of the members of the Open Hardware Repository, a knowledge-exchange project of electronics designers working in experimental-physics laboratories, founded by CERN engineers, to regulate the use of the designs published by CERN.{{Cite web |date=2011-06-06 |title=Hardware joins the open movement |url=https://cerncourier.com/a/hardware-joins-the-open-movement/ |access-date=2023-12-28 |website=CERN Courier |language=en-GB}}{{Cite web |title=Open hardware for open science |url=http://cds.cern.ch/journal/CERNBulletin/2011/28/News%20Articles/1357331?ln=en |access-date=2023-12-28 |website=CERN Document Server}}

Version 1.0 was published in March 2011. Following community feedback, Version 1.1 was published in July 2011 to follow the generally accepted principles of the free and open-source movements and make it easier for use by entities other than CERN.[http://press.cern/press-releases/2011/07/cern-launches-open-hardware-initiative CERN launches Open Hardware initiative]

Version 1.2, published in September 2013, removed the obligation for licensees that modified a CERN OHL-licensed design to notify upstream licensors about the changes and introduced a notion of "Documentation Location" to guarantee hardware recipients access to the design documents. The license's text ceased to single out Intergovernmental Organizations such as CERN, making them the same as any other licensor or licensee.{{Cite web |date=2023-12-15 |title=CERN releases new version of open hardware licence |url=https://home.cern/news/news/computing/cern-releases-new-version-open-hardware-licence-0 |access-date=2023-12-28 |website=CERN |language=en}}{{Cite web |date=2023-08-03 |title=Faq · Wiki · Projects / CERN Open Hardware Licence |url=https://ohwr.org/project/cernohl/wikis/FAQ |access-date=2023-12-28 |website=Open Hardware Repository |language=en}}

Version 2.0, published in March 2020, simplified the licence's terminology and divided it into three variants: strongly reciprocal (CERN-OHL-S), weakly reciprocal (CERN-OHL-W), and permissive (CERN-OHL-P). The license's range was broadened to include artistic, mechanical, and electronic designs, as well as adapting it to cases such as application-specific integrated circuits, field-programmable gate arrays, and even software.[https://peertube.f-si.org/videos/watch/6bbd9f81-0ae0-4194-b10a-72f3ba6b4467 CERN OHL v2 draft presented at FSiC2019][https://home.cern/news/news/knowledge-sharing/cern-updates-its-open-hardware-licence CERN updates its Open Hardware Licence]

The CERN OHL is an accepted free content licence according to the Free Cultural Works definition,[http://freedomdefined.org/Licenses Licenses] on freedomdefined.org "The CERN Open Hardware Licence (CERN OHL) is a license used in open-source hardware projects (OSHW)." and Version 2.0 is approved by the Open Source Initiative.{{Cite web |last=Tim Anderson |title=A dedicated licence for open-source hardware: CERN OHL approved by OSI |url=https://www.theregister.com/2021/01/29/cern_ohl_approved/ |access-date=2021-01-31 |website=www.theregister.com |language=en}}

File:ColorHug2 - 01.jpg.]]

On the CERN OHL website they have a list of projects using their licence.{{Cite web | url=http://www.ohwr.org/projects/cernohl/wiki/CernOhlProjects | title=Cernohlprojects · Wiki · Projects / CERN Open Hardware Licence| date=10 March 2023}} These projects include:

• [http://www.ohwr.org/projects?q=&license_version_id=4 Most projects in the Open Hardware Repository OHR]
• AXIOM{{cite web |url=https://www.apertus.org/alpha_prototype |title=AXIOM Alpha}} – digital cinema camera
• [https://web.archive.org/web/20110723135002/http://www.gizmoforyou.net/site/ Gizmo For You Ltd]
• [http://mvm.care/ Mechanical Ventilator Milano]{{cite web | url=http://mvm.care/ |title=Mechanical Ventilator Milano}}{{cite journal|last1=Galbiati|first1=C.|last2=Abba|first2=A.|last3=Agnes|first3=P.|last4=Amaudruz|first4=P.|last5=Arba|first5=M.|last6=Ardellier-Desages|first6=F.|last7=Badia|first7=C.|last8=Batignani|first8=G.|last9=Bellani|first9=G.|last10=Bianchi|first10=G.|last11=Bishop|first11=D.|title=The novel Mechanical Ventilator Milano for the COVID-19 pandemic|journal=Physics of Fluids|year=2021|volume=33|issue=3|page=037122|doi=10.1063/5.0044445|pmid=33897243|pmc=8060010|arxiv=2003.10405|bibcode=2021PhFl...33c7122A}} Rapid production ventilator design as an answer to COVID-19 shortage
• [http://kastelo.org/ The Monero Hardware Wallet]{{cite web | url=https://github.com/monero-project/kastelo/blob/master/LICENSE |title=Monero Hardware Wallet revision control|website=GitHub|date=14 May 2020}} The first (licensed schematic and layout) Monero hardware wallet
• Mycroft Mark I – smart speaker with open-source digital assistant (design files available [https://github.com/MycroftAI/hardware-mycroft-mark-1 here])
• ScopeFun open source oscilloscope{{Cite web |title=ScopeFun - Open Source Oscilloscope Hardware |url=https://www.scopefun.com/hardware |access-date=2022-04-17 |website=www.scopefun.com}}
• [http://www.simplemachines.it/ SimpleMachines]
• SatNOGS-the open satellite ground station network
• The synchrotron instrumentation [http://www.ohwr.org/projects/pandabox/wiki/Wiki PandAbox] which chorographs experiments at particle accelerator and other facilities
• Tinkerforge Bricks and Bricklets
• The tristimulus colorimeter [http://www.hughski.com/colorhug2.html Colorhug2] {{Webarchive|url=https://web.archive.org/web/20170312073636/http://www.hughski.com/colorhug2.html |date=2017-03-12 }} uses version 1.1 of this licence.{{Cite web | url=https://github.com/hughski/colorhug2-hardware/blob/master/COPYING |title = colorhug2-hardware/COPYING at master · hughski/colorhug2-hardware · GitHub|website = GitHub|date = 28 August 2016}}
• UPSat-the first open hardware satellite 1
• A Free Beer variation, brewed for the RMLL 2012 and recipe placed under the CERN OHL 1.1{{Cite web |url=http://2012.rmll.info/biere-libre |title=biere-libre |access-date=2015-06-25 |archive-date=2015-06-26 |archive-url=https://web.archive.org/web/20150626111459/http://2012.rmll.info/biere-libre |url-status=dead }}
• [https://github.com/cbedio/OpenScout OpenScout] an open source hardware mobile robot

• Open content

{{Notelist}}

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• [https://cern-ohl.web.cern.ch/ Official website]

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Category:Open hardware licenses

Category:CERN