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  Star Point Grounding

  I was poking around inside a D-Link DES-1228P fast ethernet managed power over ethernet (POE) switch. I’m looking into building a few pieces of equipment that are POE and curious how the “big boys” do it. Opening the device reveals a large main board with several large Marvell ASICs. The large TQFP in the upper […]

  Posted: June 17th, 2013 ˑ  No Comments
  Filled under: Teardowns
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  EAGLE Tools Revisited

  I revisited the tools I previously put together to process EagleCAD files for manufacture. I extended my export tools to generate all the gerbers required for most major board houses (like Advanced Circuits) and PNGs required for Fab modules (used by the Media Lab’s Modella). As icing on the cake, I also wrote a python […]

  Posted: September 28th, 2011 ˑ  6 Comments
  Filled under: Fab, Resource
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  Stacked Resistors

  On the back side of an infrared illuminator. I guess they populated this by hand…

  Posted: May 3rd, 2011 ˑ  4 Comments
  Filled under: Photography