The CERN Open Hardware Licence (OHL or CERN OHL) is a

license A license (or licence) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit). A license is granted by a party (licensor) to another party (licensee) as an element of an agreeme ...

used in

open-source hardware Open-source hardware (OSH) consists of physical artifacts of technology designed and offered by the open-design movement. Both free and open-source software (FOSS) and open-source hardware are created by this open-source culture movement and a ...

projects. It was created by

CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in a northwestern suburb of Gene ...

, which published version 1.0 in March 2011. Version 1.1 was published in July 2011. Version 1.2 was published in September 2013. Version 2.0, which utilizes a simplified language and covers also

integrated circuit An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny ...

designs, was published in March 2020.

Wording

Contrary to most of license names, the CERN OHL uses the British English spelling ''licence'' rather than the

American English American English, sometimes called United States English or U.S. English, is the set of variety (linguistics), varieties of the English language native to the United States. English is the Languages of the United States, most widely spoken lan ...

spelling ''license'' which contains an "s".

Projects using the CERN OHL

On the CERN OHL website they have a list of projects using their license. These projects include:
Most projects in the Open Hardware Repository OHR
*

AXIOM An axiom, postulate, or assumption is a statement that is taken to be true, to serve as a premise or starting point for further reasoning and arguments. The word comes from the Ancient Greek word (), meaning 'that which is thought worthy or f ...

– digital cinema camera
Gizmo For You Ltd

Mechanical Ventilator Milano
Rapid production ventilator design as an answer to COVID-19 shortage
The Monero Hardware Wallet
The first (licensed schematic and layout) Monero hardware wallet * Mycroft Mark I – smart speaker with open-source digital assistant (design files availabl
here
* ScopeFun open source oscilloscope
SimpleMachines
*

SatNOGS SatNOGS (Satellite Networked Open Ground Station) project is a free software and open source hardware platform aimed to create a satellite ground station network. The scope of the project is to create a full stack of open technologies based on open ...

-the open satellite ground station network * The

synchrotron A synchrotron is a particular type of cyclic particle accelerator, descended from the cyclotron, in which the accelerating particle beam travels around a fixed closed-loop path. The magnetic field which bends the particle beam into its closed p ...

instrumentatio
PandAbox
which chorographs experiments at particle accelerator and other facilities *

Tinkerforge Tinkerforge is an open source hardware platform of stackable microcontroller building blocks (Bricks) that can control different modules (Bricklets). The primary communication interface of the building blocks can be extended using Master Extensions ...

Bricks and Bricklets * The tristimulus colorimeterbr>Colorhug2
uses version 1.1 of this license. *

UPSat UPSat was the first satellite manufactured in Greece to be successfully launched into orbit, by the University of Patras and Libre Space Foundation (an earlier Greek-made communications satellite, HELMARS-SAT, although entirely constructed by 199 ...

-the first open hardware satellite 1 * A

Free Beer Opay Beer, originally known as Vores øl - An open source beer (English: ''Our Beer''), is a brand of beer and the first with an "open"/"free" brand and recipe. The recipe and trademark elements are published under the Creative Commons CC ...

variation, brewed for the RMLL 2012 and

recipe A recipe is a set of instructions that describes how to prepare or make something, especially a dish of prepared food. A sub-recipe or subrecipe is a recipe for an ingredient that will be called for in the instructions for the main recipe. His ...

placed under the CERN OHL 1.1
OpenScout
an open source hardware mobile robot

Reception

The CERN OHL is an accepted free content license according to the

Free Cultural Works The Definition of Free Cultural Works is a definition of free content from 2006. The project evaluates and recommends compatible free content licenses. History The Open Content Project by David A. Wiley in 1998 was a predecessor project which ...

definition and version 2 is approved by the Open Source Initiative.

References

External links

CERN Open Hardware Licence
{{CERN Open hardware licenses CERN

Wording

Projects using the CERN OHL

Reception

See also

References

External links