Infinite Noise Multiplier board works

[Bill Cox]

The next two boards also work, basically exactly according to the theory of
operation, outputting entropy estimated as within 0.5% of the model's
prediction.  I have pictures of all three at:

    https://github.com/waywardgeek/infnoise

Bill

On Sun, Oct 26, 2014 at 2:12 PM, Bill Cox <waywardgeek at gmail.com> wrote:

> I got the first out-of-date boards from OSH Park, and decided to populate
> one.  It works as predicted:
>
>
>
> The big chip in the middle is an FT240X USB FIFO chip, which I use in
> bit-bang mode to drive the INM which is on the right half.  I've got a
> better board, based on Paul's feedback, coming in a few days.  It will have
> a proper USB connector and plastic housing with nickle-based shielding
> paint on the inside.  There will be a ground plane on the bottom, and the
> vias will be smaller, and covered by the solder mask.
>
> This is the first surface-mount board I ever designed.  It was a ton of
> fun!  OSH Park is awesome.
>
> Bill
>
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