Add C&K PVA1

[strombom]

C&K PVA1
https://www.ckswitches.com/media/1343/pva.pdf

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Thanks for creating a pull request to contribute to the KiCad libraries! To speed up integration of your PR, please check the following items:

• Provide a URL to a datasheet for the footprint(s) you are contributing
• An example screenshot image is very helpful
• If there are matching symbol or 3D model PRs, provide link(s) as appropriate
• Check the output of the Travis automated check scripts - fix any errors as required

[strombom]

Does this part have to have origo at pin 1 as the travis script wants?

A mechanical designer will probably specify the center position of the physical button.

Set pin 1 rectangular shape since the button isn't mechanically symmetric.

[poeschlr]

How are other buttons handled?

[strombom]

They seem to have a square pin as well as a silkscreen marker:

[poeschlr]

You have the dimensions on the fab layer exchanged. (The 9.8 should be in the same direction as the pin spacing 6 not where the pin spacing is 5)

[poeschlr]

We have finalized a better naming convention to be used for new contributions. KiCad/kicad-symbols#580

SW_[type]_[poles]P[throws]Tx[quantity]_[NO/NC]_[Latching/Toggle]_[control]_[light]_[options]

SW_Push_2P1T_NO_Toggle_CK_PVA1

[poeschlr]

I took another look at this.

There is a toggle version and a Momentary version of this switch available. As these need different symbols we should use two footprints here.
One is named SW_Push_2P1T_Toggle_CK_PVA1EE, the other SW_Push_2P1T_NO_CK_PVA1OE.
We might also prepare this for including different 3d models depending on button height. (means in the end one footprint per height) meaning add the height code to the name as well. So it would then be for example SW_Push_2P1T_Toggle_CK_PVA1EEH1

[antoniovazquezblanco]

Ping @strombom

Could you please make the changes requested? Thanks!