#Drone ESP32 Expansion Board

1 messages · Page 1 of 1 (latest)

hasty river
cyan musk
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where does VCOM for the 3.3V regulator come from?
D5 probably isn't doing you any favors, and will cause current-dependent voltage drop that might confuse those things you've got using 5V directly
why 4.7k PDs on CC1 and CC2? 5.1k is standard and doesn't cost more or anything

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specifying a current for all of your resistor is odd both because 1) it's the same everywhere and 2) that's not a specification by which you can shop for a resistor. they're rated for power dissipated, not current. (they're obviously connected, of course)

hasty river
cyan musk
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oh i finally see the other vcom on the connector.
there's a BATT+ power symbol you could use

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i don't usually put much effort into looking at the layouts, they're all low-res screenshots and tough to follow that way.
looks like you have some ground pads which aren't connected.
i'm not quite sure of the scale of things, but you might see if you can reduce the size of your vias and the clearance of the copper zones. you've got signals moving on the top and bottom which are crossing gaps in the ground(?) planes because of the clearance around the vias.