Project Logs

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• outline

  George • 05/17/2018 at 05:53 • 0 comments

• revision 3

  George • 05/17/2018 at 04:13 • 0 comments

  Revision 3 of the board came in and I quickly soldered it together and it works.

  
  I can control the USB port with either a 3.3V/5V MCU!  This should be ideal for automation testing and deploying code.

  
  

• salvaging botched PCBs with bodges

  George • 05/16/2018 at 01:53 • 0 comments

  One other thing I didn't notice with the new PCB design was that the USB A connector had its wiring completely reversed in EasyEDA.  I sourced the components and PCB fab through LCSC and JLCPCB, and they were super helpful in refunding my money for the mistake, even though there were already a couple of other mistakes on the board.

  Here we have some bodge wires and some TH components to further test and validate the new design.

• cost down boo boo

  George • 05/16/2018 at 01:49 • 0 comments

  In an attempt to bring the PCB cost down, I spun up a new design, and added support for 3.3V to 5V logic toggling of the AP2171.  Too bad I didn't notice the copper pour was messed up when I uploaded my Gerber to the fab.

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