Where do GNDPWR and Earth connect to?

ebastler / zmk-designguide

A short hardware-designguide for ZMK keyboards

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Where do GNDPWR and Earth connect to? #12

Open xpol opened 2 months ago

xpol commented 2 months ago

Hi,

I'm a software engineer, Thank you for the guide!

I have a dumb question: In the "USB connectors and protections" section, there are GNDPWR and Earth besides GND. So where do GNDPWR and Earth connect to?

ebastler commented 2 months ago

Ugh that is a leftover from me overhauling the entire ground/shield handling. Sorry. GNDPWR should be regular GND. Earth is just a label and can stay there as-is. Earth should be what your enclosure is connected to, if the PCB gets put into a metal housing.

krikun98 commented 2 months ago

So is the old schematic with the 1M resistor from the Osprey no longer relevant?