deskthority

New USB ports came in, everything works now

Thanks everyone!

The pcb layout drawings are always from the side of the component. You can be sure in this case also based on the shape of the connector. Ie. ^ vs v. If the connector is not oriented the same as the one you have, then the pins are mirrored.

Ah, okay, I didn't see the pin numbers on the footprint ...

You might be able to find an ’upside down’ usb connector as well. At least molex makes them for both orientations. (Search for reverse mount)

So I was looking through molex's product line and they only have one "top mount" as they call it (standard seems to be called bottom mount) and it has 2 ...

Nope.... The footprint that was in the keyboard parts library I used is just completely backwards.... every usb port out there has the pins in reverse. I fixed the footprint and will just have to order new PCBs

if you probed any VCC pin you only get 0.6v instead of 5v. If you leave it connected to power, the chip also starts to get hot. (Also if you take the chip off the board and apply power, the proper 5v can be measured to all VCC pins.)

seems like you need to... REVERSE THE POLARITY!


Crap, you ...

Engicoder wrote: If the chip is getting hot and you are only seeing 0.6V on VCC, it is a good bet that you have a short somewhere.
Could you post your schematic?

The schematic is mostly the same as whats on the tutorial, heres a screen shot of it

Hi All,

New to the forum, was talking to the guys from 1up keyboards at makers faire yesterday and they suggested I post here, so here I am. So to make a long story short, I figured I'd take a stab at designing a pcb and making a small keyboard.

I followed this guide here: https://github.com ...