Re: [uCsimm] Power supply for uCsimm

From: Serge Egelman (
Date: Mon May 08 2000 - 11:08:14 EDT

What would the best way of making a battery operated power supply be? Using a DC/DC
coneverter? How long might this run on a few (i.e. 4) AA batteries (what's the
current draw of the whole thing? I haven't gotten mine yet, so I can't test it with
a multimeter)?


Stuart Hughes wrote:

> wrote:
> >
> > Before I plug this thing in, I want to know beyond the shadow of a doubt that
> > pumping 4.5v into this is okay. This may seem obvious to seasoned embedded
> > hackers, but some of us are just now starting. When I see one set of docs say
> > this runs at 3.3v and the board says 4-6v, and there is no further explanation
> > offered in documentation, the main web site, FAQs, etc., I get worried (why
> > isn't that clearly documented? I can't be the only person who's ever wondered
> > about this).
> Hi Erik,
> As you will have seen by now from the other answers, this will work
> fine. I have a uCsimm and I use a 500ma supply, I have tried it at 4.5
> and 6 volts, both work.
> Regards, Stuart Hughes
> Zentropix - a Lineo Company
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