Arduino

My first try at generating nice javascript graphs (using highcharts) from the Wattson electricity consumption meter :

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nb! All text x-axis text is wrong, and the header text is wrong as well. (Did I mention that this was my first try)

I've given in - and from now on I'll use a MySQL database to continuously store all the readings from the various ROOMS sensors dotted around the house.

The database is very simple :

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(Click for larger)

For those who wonder about the first field (id) - it's there to make usage in Ruby on Rails easier for a novice like me.

And to get the data out - here is a simple code example in Ruby

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At long last I managed to get my first Ruby On Rails application displaying something :

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using the "acts_as_dashboard" gem I managed to pull data from some of the Jeeduino/Arduino sensors dotted around the house, and using various AJAX calls I can get the screen to dynamically update these values.

I know - this is not terribly advanced, but at least it is a start.

I just bought a 5 metre roll of RGB LED's - after reading this Jeelabs article. I even bought the necessary MOSfet transistors to build the driver board.

But then I came across this story - and I happen to have a BlinkM MaxM laying around

Using MaxM with flexible RGB tape
A single BlinkM MaxM can easily drive a 5 meter (16 ft) roll of the flexible RGB SMD LED tape that’s used for architectural lighting. Each roll contains 150 RGB LEDs.

Each LED in the tape is a SMD RGB "5050" LED, capable of putting out about 6000mcd. The spacing between LEDs is 3.3cm (~1.25").
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