[volt-nuts] Cheap Oscilloscope measurement of small current?

Brooke Clarke brooke at pacific.net
Fri Nov 5 12:09:58 UTC 2010

Hi Pete:

I ended up getting the Rigol DS1052E.  It turns out that they make the 
low end scopes for HP and are very high quality.
You can get a new one for under US$400 and then do a software hack to 
double it's bandwidth (i.e. make it into a $1000 class scope).
Watch the video blogs linked at the above page.

Have Fun,

Brooke Clarke

Peter Loron wrote:
> Hello, all. I'm working (very slowly, but working) on some designs that
> will be battery (and possibly solar) powered sensors with a wireless
> data backhaul (likely 433 or 915MHz).
> As part of my never ending quest for more tools, I'm starting to educate
> myself on what I may need to get measurements on current usage over time
> for these devices. I want to be able to quantify power usage while it is
> asleep, sensing, sending data, etc..."does changing this code shorten
> the radio on time?"
> I'm sure Agilent would be happy to sell me a fancy oscilloscope current
> probe for more than my condo cost, but I'm looking for something more
> cost effective.
> Suggestions from the hive mind?
> Thanks.
> -Pete
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