Interesting.  It is possible the clamp meter that I have isn't even designed to 
measure DC current.  I don't have the model number with me, but I am sure I 
didn't pay a heck of a lot for it.

In-line ammeter seems like the way to go to troubleshoot this.

1-Wire I have not forgotten you!

Jason

-----Original Message-----
From: p4trykx [mailto:p4tr...@o2.pl] 
Sent: Thursday, June 16, 2011 6:51 PM
To: OWFS (One-wire file system) discussion and help
Subject: Re: [Owfs-developers] Monitoring Battery Voltage

Dnia 16-06-2011 o 23:57:31 Marc MERLIN <marc_n...@merlins.org> napisaƂ(a):

> You don't need to do that, you can use a donut current measuring 
> device See the little donuts on picture #4 
> http://marc.merlins.org/perso/linuxha/2010-08.html#Fine-grained-house-
> wide-power-monitoring-with-Brultech-ECM1240_-ecmread_py-_with-net-mete
> ring-support_-and-graphing-with-cacti
>
> You could just buy one of those donuts and measure the current from it 
> (they cost $5 or so)
> http://www.etherbee.com/home/store/product.php?id_product=45

But this is for alternating current. There's no easy way to measure direct 
current especially very small values. The are "clamp meters" but those for DC 
are expensive.

-- 
P4trykx

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