Saturday, November 10, 2007

MtgLife returns

Main GUI

Finally I rescued from backups the code of the MgtLife, a Python application I developed a year or two ago for Symbian. The main purpose of this application is to keep updated the life points of the two opponents of a Magic The Gathering match. This is what I call a freak combo, Magic + CellPhone + PyS60.

Friday, November 9, 2007

Debian Etch + Quickcam Chat


This is the key feature for my next sad and freak project. I need a webcam working on my linux server. I've failed several times to configure it properly, but I finally achieved it. Here you will find how to configure a Logitech Quickcam Chat on an Etch Debian.

Monday, October 22, 2007

Correlating Data



After analyzing any measurement values I always ask myself the same question, is this data wrong or not?. To check if my temperature measurements were good enough I gathered in all the thermometers in my home and placed next to the Arduino+LM35. Then I confirmed that the LM35 was doing a good job, but that wasn´t enough, I needed to know if the measurement of the LM35 could be at least a naive model of the whole room temperature. To do so I started working with PyEphem and probed that the temperature data was correlated with the sun altitude.

Friday, October 12, 2007

Plotting Data



Data is almost useless without a proper view. After storing the temperature data I need a way to plot this information so I can infer something. Let´s face the 'artistic' stage of the project.

Debian Etch + Temperature Logging



Time to store the data. Being able to sense the temperature it's just the first step, storing and plotting the resulting data is the power, muhahaha, muhahaha

Monday, September 17, 2007

Arduino + Temperature + Linux



With the temperature sensor ready to be tested, I need them to be on all the day and a PC storing the temperature values. My laptop is too lazy, always hibernating as soon as I leave it alone. But what about my Linux server? He is always on, with its low consumption VIA processor and 5 free USB connections. That's my target.

Sunday, September 16, 2007

Arduino + Temperature



Back again with Arduino. This post will be extremely short, because getting a temperature value with +-1ºC is extremely easy and already done. Take a look at this portuguese blog entry. Using an LM35, a device that outputs a linear voltage of 10mV/ºC.