Re: [Hampshire] CurrentCost meters

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Author: Chris Dennis
Date:  
To: Hants LUG
Subject: Re: [Hampshire] CurrentCost meters
Hugo Mills wrote:
> On Fri, Sep 18, 2009 at 03:44:35PM +0100, Jon Wilks wrote:
>> Hugo Mills wrote:
>>>    I've been playing with my shiny new CurrentCost meter that I bought
>>> from AndySC on Saturday. I can report that I'm getting data happily
>>> out of the serial connection, and that I've started hacking together
>>> some Python to interface to it. If anyone's interested, what I've got
>>> so far is at [1] -- it only grabs the live data every 6 seconds and
>>> shoves it into a database so far.

>>>
>>>    Next up, some data mangling and plotting tools. :)

>>>
>>>    Hugo.

>>>
>>> [1] http://svn.darksatanic.net/svn/ccm/trunk
>>>
>>>
>> Could you not push the data into RRD[1]? I'm sure it would cater for
>> your database, data mangling and plotting needs. IIRC it has a Python
>> binding too if that is your bag.
>
>    I could do, but getting data back *out* of RRD is a right royal
> pain. It also doesn't offer much scope for things like interactive
> graphs, or AJAX-style interactions.


RRDTool is an easy place to start though. I used instructions at
http://www.jibble.org/currentcost/ to create graphs such as
http://www.fbcs.co.uk/files/power-week.png which proves that I've been
away for most of the week and haven't had a chance to do anything more
sophisticated with it yet.

cheers

Chris
-- 
Chris Dennis                                  cgdennis@???
Fordingbridge, Hampshire, UK