labsw: first prototype pictures

Jon Phillips jon at fabricatorz.com
Tue Sep 6 05:26:58 EDT 2011


Werner love the new faceplate. On the superficial level, really enjoy
the transparency on the front and the logo is working quite well!

Jon

On Mon, Sep 5, 2011 at 11:42 PM, Werner Almesberger
<werner at almesberger.net> wrote:
> Cristian Paul Pe?aranda Rojas wrote:
>> I cant wait to see it wired to something ... :-)
>
> Thy wish is my command :-) But first, a shiny new front plate. This
> time made of unclad FR4:
>
> http://downloads.qi-hardware.com/people/werner/labsw/tmp/labsw-0-fr4plate.jpg
>
> Next, the whole front assembly, mounted but not yet connected to
> the PCB:
>
> http://downloads.qi-hardware.com/people/werner/labsw/tmp/labsw-0-front-wires.jpg
>
> This is roughly where all the wires go (a few were mis-routed):
>
> http://downloads.qi-hardware.com/people/werner/labsw/tmp/labsw-0-inside.jpg
>
> This is what the whole contraption looks like with the box closed:
>
> http://downloads.qi-hardware.com/people/werner/labsw/tmp/labsw-0-off.jpg
>
> And here it is switching power to a blue LED:
>
> http://downloads.qi-hardware.com/people/werner/labsw/tmp/labsw-0-on.jpg
>
> The orange-looking LED is really red to the human eye. The orange
> is something my camera invented.
>
> The relays work quite well. The opto-coupler outputs are having
> difficulties with the current that crawls through the pull-ups.
> Some are fine, but some don't turn off completely. This is easy
> to fix, though.
>
> Next, teach the firmware a few more tricks.
>
> - Werner
>
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-- 
Jon Phillips
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