CERN Open Hardware Licence

The CERN Open Hardware Licence (OHL or CERN OHL) is a license used in open-source hardware projects. It was created by CERN, which published version 1.0 in March 2011. Version 1.1 was published in July 2011.[1] Version 1.2[2] was published in September 2013.[3] Version 2.0,[4] which utilizes a simplified language and covers also integrated circuit designs,[5] was published in March 2020.[6]

Wording

Contrary to most of license names, the CERN OHL uses the British English spelling licence rather than the American English spelling license which contains an "s".

Projects using the CERN OHL

The ColorHug2, an open source colorimeter.

On the CERN OHL website they have a list of projects using their license.[7] These projects include:

• Most projects in the Open Hardware Repository OHR
• Gizmo For You Ltd
• SimpleMachines
• Tinkerforge Bricks and Bricklets
• AXIOM[8] – digital cinema camera
• SatNOGS-the open satellite ground station network
• UPSat-the first open hardware satellite 1
• Mycroft Mark 1 – smart speaker with open-source digital assistant (design files available here)
• A Free Beer variation, brewed for the RMLL 2012 and recipe placed under the CERN OHL 1.1[9]
• The tristimulus colorimeter Colorhug2 uses version 1.1 of this license.[10]
• The synchrotron instrumentation PandAbox which chorographs experiments at particle accelerator and other facilities
• The Monero Hardware Wallet[11] The first (licensed schematic and layout) Monero hardware wallet
• Mechanical Ventilator Milano[12] Rapid production ventilator design as an answer to COVID-19 shortage

Reception

The CERN OHL is an accepted free content license according to the Free Cultural Works definition[13] and version 2 is approved by the Open Source Initiative.[14]

See also

• Open-source hardware
• Open content

References

1. CERN launches Open Hardware initiative
2. CERN Open Hardware Licence 1.2
3. CERN OHL v1.2 released
4. CERN Open Hardware Licence version 2
5. CERN OHL v2 draft presented at FSiC2019
6. CERN updates its Open Hardware Licence
7. "Cernohlprojects · Wiki · Projects / CERN Open Hardware Licence".
8. "AXIOM Alpha".
9. biere-libre
10. "colorhug2-hardware/COPYING at master · hughski/colorhug2-hardware · GitHub". 28 August 2016.
11. "Monero Hardware Wallet revision control". 14 May 2020.
12. "Mechanical Ventilator Milano".Galbiati, C.; Abba, A.; Agnes, P.; Amaudruz, P.; Arba, M.; Ardellier-Desages, F.; Badia, C.; Batignani, G.; Bellani, G.; Bianchi, G.; Bishop, D. (2020-04-10). "Mechanical Ventilator Milano (MVM): A Novel Mechanical Ventilator Designed for Mass Scale Production in Response to the COVID-19 Pandemic". arXiv:2003.10405 [physics.med-ph].
13. Licenses on freedomdefined.org "The CERN Open Hardware Licence (CERN OHL) is a license used in open-source hardware projects (OSHW)."
14. Tim Anderson. "A dedicated licence for open-source hardware: CERN OHL approved by OSI". www.theregister.com. Retrieved 2021-01-31.

External links

• CERN Open Hardware Licence