I have just published version 0.4 of energy@home. It includes Twitter integration and a new graph which shows how much energy was used for each hour of the day.

energy@home project page

A preview of my part time project energy@home with Twitter integration.

As you can see the value for total energy used is currently way off but it’s a preview of what’s to come.

There are two options: tweet hourly summary and daily summary. These can be turned on and off. I am using python-twitter library which does not use oauth authentication so the client description comes up as API which is not nice.

It’s been a while since I have mentioned the project energy@home I have been working on so I thought I’d share the latest picture of what it looks like.

I will soon be tagging and release a new version with the major difference form 0.3 is triggers. Triggers allows data only to be captured if certain conditions are met or exceeded. This saves saving data which has not changed much.

Next step is to get pre-triggering working where if a trigger condition is met then the data leading up to the trigger event gets logged and certain amount of data is stored after the trigger. This allows a user to view data leading up to the event, the event itself which caused the trigger and the leading data after the event.

Improvements to the UI is needed to. I would like the graph settings to be more customizable and get the data table to work so users can inspect the raw values for themselves.

Special thanks goes to Chris Noon for data acquisition techniques which lead me to using triggers.

energy@home project page

I sent in an Email to Todd on the Geek News Central Podcast and he kindly linked my project in his show notes which can be found here. You can hear the recording on episode 518 around 1 hour 13 minutes in.

I have formally uploaded and started using Google Code to host my energy monitor I’m using / developing.

It has been released under the GPL license so feel free to take a look at my messy code and leave some constructive criticism.

http://code.google.com/p/energyathome/