[Noisebridge-discuss] eZ430 Chronos

[Mikolaj Habryn]

Not sure it would help - I don't think I'll have room for a circuit board to
attach the components to. But maybe for test-assembling everything...

m.

On Sat, Mar 20, 2010 at 12:45 AM, Christie Dudley <longobord at gmail.com>wrote:

> Considered doing the toaster oven thing with solder paste?
>
> Christie
> _______
> "We also briefly discussed having officers replaced by very small shell
> scripts." -- Noisebridge meeting notes 2008-06-17
>
> The outer bounds is only the beginning.
> http://www.flickr.com/photos/genriel/sets/72157623376093724/
>
>
> On Fri, Mar 19, 2010 at 10:01 PM, Mikolaj Habryn <dichro at rcpt.to> wrote:
>
>> On Fri, Mar 19, 2010 at 12:32 PM, dpc <weasel at meer.net> wrote:
>> > Mikolaj Habryn <dichro at rcpt.to> writes:
>> >
>> >> I also have vague ideas for smart-dust-style devices to build, but
>> >> find the idea of soldering tiny 0.5mm pitch devices into
>> >> quarter-inch-diameter enclosures faintly daunting, and would rather
>> >> attempt it in company, preferably with beer.
>> >
>> > the beer doesn't really help :-)
>> >
>> > you're talking the pin pitch though? as long as the pins are exposed (as
>> > opposed to tucked under the package) it isn't too hard to tack lines
>> > in. the 'hard' part was making sure the lines were stress relieved
>> > enough so that they didn't break off randomly.
>>
>> I think they are tucked underneath - "48 VQFN Exposed Pad".
>> Accelerometer is similar, but only 8 pads - same pitch, though. Which
>> is good in a sense, since I want to embed them inside a 00-gauge plug
>> along with battery and vibrator/electrodes but bad for the soldering.
>> Not too fussed about stress relief, since I figure on setting the
>> entire thing into a resin matrix of some kind, although I'm not
>> totally clear on how one does that without breaking fragile wiring.
>>
>> m.
>>
>> >
>> > \p
>> >
>> > ---
>> > Once the rockets are up, who cares where they come down -- That's not my
>> > department. - Werner von Braun
>> >
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>
>
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