Hacking the Weather II

I was in “hacking mood” yesterday so I pulled off some old hardware from my messy rack and follow the instructions here to produce the following graphs of my room temperature.

For those who don’t understand the picture above — it is actually the graph of temperature against time (in Celcius) of my study room at home in Riyadh.
Outside temperature is 40++ Celcius during the day (yes it is summer in Riyadh)  but getting cooler as Ramadhan is approaching .Do you know that the temperature would reach below 10 Celcius during the winter here?

So to recall — the idea of  starting this project goes back ages ago but was delayed due to many undisclosed reasons — you know it’s not easy being a father of 4, living in Riyadh bla bla bla .
How it works? You can build your own 1-wire temperature sensor (search for DS1820 with google and you’ll find many related projects) or you can buy a ready made kit or the one that I am using here is TAI8520 if you are too lazy to  like me.

Build/assemble your own

Or just follow this easy step-by-step instruction by Instructables .

The USB interface that I am using is DS9490R and  connected to my EEEPC which is running Ubuntu with Digitemp and rrdtool applications. The graph was later ftp’ed to my blog every 5 minutes via crontab. Insyaallah I will try to install another sensor outside my house so that we can see the temperature difference in and out of the house!

The blue USB on the right is the DS9490R .