Scott's Blog

My wife, Renata, has been complaining more and more that Windows is getting slower and it's a pain downloading and installing anti-virus software all the time. I occasionally tease that I don't have any of these problems, I don't even have an anti-virus installed on my Ubuntu machine. So finally, this week, she said that she wants to a dual boot machine, like Victor has. Compounding the issue is that over the past few weeks our Internet provider had been getting slower and slower, of course, making Windows appear even slower than normal. I downloaded the DVD version of Ubuntu 8.10 which took a week with this slow connection and, of course, it didn't work (I believe her machine does like booting with a DVD). Luckily, some time on Friday our Internet provider fixed their problems and I was able to download the CD version of 8.10 in about 40 minuts. In the meantime I backed up her machine to my hard drive which was much slower than it should have been (about 8 hours). I...

It's been a long road, but we launched Google Talk in Orkut. Official Orkut Blog Post of the Launch

I bought the SparkFun LED matrix to go along with the Arduino and here's what I've built. I basically smiles when the build is green and frowns when it's broken. You can find the code at google code . I wanted to have is scroll messages across and there's code to do that, but in the end it was just too annoying since it sits in front of my desk. I have a routine ready, however if I want to give someone a message. To get the text I used wxPython and I draw the text in a buffer, then I look at the pixels one by one and those become the LEDs to turn on. One nice addition is that I can pass Unicode characters and thus it's relatively easy to show special characters like ⚘♂✔✖✈☝ although 8x8 pixels is often not enough and I have to fix them by hand. Another bonus the that program works from the command line so you can print larger messages: ./text2pixels.py --size 30 --bold --font "Delphine" Arduino ### ...

I had some fun this weekend with the sparkfun LED matrix . It's a little bit expensive at $35.00, but looks like it could have a bunch of cool uses. Programming it I had to learn about SPI and I ended up writing my own SPI routines in processing . I've put the code up at led_matrix_tools and some of it is very reusable. Note: I wrote this on October 12th, I just noticed now that I never sent it.

Brazil has a strange relationship with electricity. Something like 95% of the electricity in Brazil comes from hydroelectric, yet they charge an arm and a leg for it. A few years ago we had the "Apagão" (big-unplug or big-turn-off) where you had to halve your electricity consumption from the same time last year. This was because it hadn't rained enough and the water was getting too low behind the dams to make electricity. The real problem, of course, is that the government hasn't been investing in new electric generation plants. Worse was, that after the emergency, everyone had learned how to use less electricity (by buying compact fluorescent lights (at twice the normal price), for example) and was being more energy efficient, so the hydro company increased the prices. Why? Because they weren't making enough revenue! At my home they charge R$0.5684/kWh which is about USD$ 0.3072/kWh. That's 204% more than the New York region ($0.1508/kWh) or 217% more expe...

Puxe (pronounced "push") - means pull no - means "in" or "at", "no happy hour" would be "at 'happy hour'" sex - means "Fri" or sexta feira. Sexo would be sex. uai (pronounce "why") - it's an expression similar to "look", "well".

We we cleaning out some closest and my son picked up an old game of mine: Baldur's Gate from 1998. It's pretty tough for him since it's all in English and it's pretty complicated, but he likes it. These old games still are lots of fun.