Re: System Building Help

On Sep 28, 7:46 pm, Kevin <cool...@xxxxxx> wrote:
larwe wrote:
On Sep 28, 11:26 am, Kevin <cool...@xxxxxx> wrote:

I appreciate the quick reply. That device is absolutely brilliant!
Thanks!

Enjoy. The description on their page really doesn't do it justice - it
implies that you need to play with firmware to use it as an analog
data logger. In fact, updated firmware is already preloaded.

Thanks -- actually - if it's as good as you say, I don't even think the
manual would do it justice. There are two things I'm still not certain
about it.

1) What is the sampling input voltage and how many divisions are there?
I mean I don't know if it's 16-bit, 8-bit or anything in between, and
I also don't know the voltage range that's being divided. Is it from 0
to whatever you power it with?

2) How long does it run? I saw that had a nice little battery pack,
and I remember reading somewhere that it lasts 20 hours. 4 AA's and
that's it? It dies that quick? Could you confirm?

LPC2100 draws 80mA active and couples mA standby. It you need more
than a few days of battery, you should draw less than 100uA standby.
AVR or STM32 might be better.


thanks,
kevin


.

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