Gratifying Graphic Gizmos

15 years ago, at the start of March | 2 Comments

Yesterday the Current Cost unit actually got installed for real, something I was dreading. Dreading not because it was a difficult thing to do but simply because I expected the figure it would show would be terrible. Guess what, it wasn’t. In fact it seemed to be fairly close to that of other people who are monitoring theirs. The initial figure of 371 Watts didn’t last too long once the dishwasher and oven came on and an interesting spike appeared when the hob went on for the kettle.

Continuing with my sudden graphing fetish, as well as using a Current Cost unit I have dotted a number of little devices I’ve built with Xbee and Arduinos to measure temperatures (and other things) around the house. More information on those will come out later, but it’s an interesting project too.

Since I have the data for those it’d be rude not to graph them too, there’s a sample in the thumbnails below.

Not content with graphing them locally I picked up a Pachube invite and started graphing data there too. The process is simple really and as you can see on the right hand side of this page under ‘Graphy Stuff’, graph images can be embedded in your own or other sites. The really interesting thing about Pachube is that you can share your data with people who may be interested. The data they get to see is delayed by approximately 15 minutes. If you output your data in the eeml format then you can specify your own tags too.

Electricity Usage GraphTemperature in the garage

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March 1, 2009 8:47

Current Electricity Use (15min)

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Graphy Stuff

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