Will an official KiCAD library and footprint be released for the Omega2S?



  • For designing products which use the Omega2S, an official KiCAD library and footprint would be very useful. Are there any plans to release any?



  • @Zebulon-McCorkle I would like to get an official footprint from Onion as well!

    However, for the time being, you might want use my KiCAD library. It has a Omega2S footprint which I could already test to some degree (manual soldering on one prototype board - I had access to an early Omega2S sample).

    So that footprint should be fine, but of course, it's not official and there can always be details… Just create a PR on github if you have improvements…



  • @luz Oh, that's great! I'll get working on my design and be sure to PR any improvements I might make.



  • Onion just released a .dxf drawing for the Omega2S footprint, and a .pcb file presumably containing a footprint (but not in KiCAD format), see here.

    Comparing the .dxf with my Omega2S footprint (which I designed for manual soldering), the pads are smaller and reach a bit more under the Omega2S. This requires extremely precise placement because of the very close proximity of the non-masked shield housing contacts to pins C24/B24. If the part is only a fraction of a mm shifted right or left, C24 or B24 gets shorted to GND (shorting C24/XTAL_FREQ_SEL is particularily interesting, because then the Omega starts up, but with a wrong frequency, so console has a weird baud rate, and everything else depending on timing does not work. That's how I learnt to pay attention to these pads...)

    So I think the official footprint is probably ok for automatic placement, but mine is safer for hand-soldered prototypes.



  • Here you are, unofficial (my own project) but usable Kicad library, footprint and 3D shape:
    Onion_Omega_2.7z


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