Wattcher part #3 – creating a web database with AppEngine

In this latest installment, watch as the heroine takes Watt-hour averages, learns Google App Engine and creates a webapp custom-designed to store her sensor data. Wow! See data as it trickles in at http://wattcher.appspot.com

Next up: Graphs, diagrams and other pretty pictures!

Filed under: random — by ladyada, posted January 28, 2009 at 5:34 pm

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3 Comments

  1. Hey Ada, how do you monitor usage by lights and appliances?

    I loved your concept, but I too live in a rented apartment and not very excited about hacking the electric system. But lights and appliances are a must, otherwise it won’t be even barely accurate in my case.

    Comment by guiambros — January 29, 2009 @ 7:27 pm

  2. Neat, but really, your REST webservice should respond to an HTTP POST request instead of a GET request in PowerUpdate. ;)

    Only change you’d have to make to your python script would be to pass a data parameter to urllib2.Request(url, data) See: http://www.voidspace.org.uk/python/articles/urllib2.shtml#data

    Comment by tbuser — January 29, 2009 @ 8:40 pm

  3. GET is easier for my brain to cope with

    Comment by ladyada — January 30, 2009 @ 10:53 am

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