• Your power buses are floating? I guess you may be thinking that you wire them to where you want? (so there's no mask over? that's probably what the //// are all about....)

    I would like to see a header exposing the lines from the pads of the power jack as well. For testing it would be nice to simply make a banana->jack and use a bench power supply. Currently it seems hard to do a direct tap?
    Would you mind generating a 3d view (if your cad supports it easily).

    One more thing, if one wanted to do a large-ish LED project (and thus high current on the power jack) then thicker traces for it may be a good idea.

    Lastly (if I were to sell something) I'd replace all straight angles with 45* like you do for most traces. If only to never hear anyone complain or ask why it's designed as it is. I'm sure it would have no practical implications but it might if someone wanted to make say an Espruino controller GPS Disciplined Oscillator.

    Disclaimer: I am a beginner, think of these comments as questions.

    Seems very good. I'd buy some.

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