Tuesday, January 20, 2009


Like Johnny Five (robot from short circuit for those of you born too late for 80s movie references) this guy needs MORE INPUT!
Here's a blogger who graphs his home power usage every 10 seconds.
clipped from www.picobay.com
This post details a real-time web based household power usage chart. The end result is a live chart in a web page that updates every 10 seconds with the instantaneous power usage for my entire house. The electrical current is measured on the main lines entering my home with AC clamps. The signal is then conditioned with a simple circuit and monitored by an ioBridge module. The ioBridge module takes care of feeding the data to the internet without the need for me to host a power hungry home web server. By using ioBridge widgets with a few JavaScript API calls on my web page, I am able to chart the data with Google Charts as it is measured and make kilowatt-hour calculations in real-time.
clipped from www.picobay.com
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