I recently got a Maxbotix LV-EZ4 Ultrasonic Range Finder to try understand how to use it with my little Arduino. Having a ultrasonic range finder can be very useful in many different projects, as it can detect objects, I can use it to make alarm systems (cars usually use this kind of sensor), Obstacle-Avoiding Robot and many other things that you may have in mind. It works better outdoors then the IR sensor, but the only thing I could notice is that it doen’t detects very well some thick carpets. Besides that, it’s a great sensor. From the datasheet we can read that it sonar range information from 6-inches out to 254-inches (15.24 cm - 6.452m).
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Yesterday I was going to start watching a movie, when me and my friend pedro decided to give up on the movie and build a binary clock. After sometime thinking on how to program it, we made it. It works beautifully, so I decided to show here how I’ve done. It may not be the easiest way to make it work, but that’s what we’ve done.
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I’ve built my HTPC like one year ago, don’t know why I have never written about it on this website. Well, for today, I will be presenting the place I spend many hours of my life, my Home Theater PC, my Media/File/Gaming/BackUp Server. The idea came many years ago, but without $, it was not possible. Fist my main computer was near the tv, so I used to connect to my old tv using a S-Video Cable and a P2 to a RCA Cable, and as a Tube Tv, the quality wasn’t that good, and I couldn’t almost read any text on the screen, just big texts like subtitles.
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Are you like me, who uploads almost every photo you take to your Flickr Account? Right now, I’ve uploaded 6,472 photos. What if the hard drive where all your precious pictures are stop working? What would you do, start downloading your pictures from Flickr one by one, no way right?
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How many of us, when young spent so much money playing in arcade machines? How much time have you spent on that old arcade house playing that game, just to watch the end of that hard game, or to be in first on the Hall of Fame? Don’t you miss playing Metal Slug, Marvel vs Capcom, The King of Fighters, Dungeons & Dragons, Street Fighter, Cadillacs and Dinosaurs and many other games?
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I’ve owned a Iphone for a while now, it’s an amazing phone, the best I have ever used so far. But when I first started using it, my only concern was that the battery didn’t last as much as I expected. After two days, it was gone, and when I needed it, the phone just didn’t turn ON. I used to let the wireless on almost all the time and downloading many new apps. Now that I have some more experience on how my little gadget works, I will try to share some ideas on how you can optimize your iphone’s battery life and have a better iExperience.
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Updating your linux box is getting each time easier, you can wait until a new update message pops up on your taskbar, or update on your terminal. I usually use the terminal to update my computer, and I will let you know the way I do.
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So you are thinking about starting a blog, or your friends have their blogs and you are wondering why should you have one. In this post I will try to show you some good reasons why you should have a blog. For sure there are many more reasons, but they will probably change from person to person. So start reading and get to work, because you still have a lot to learn and it may change your life!
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Ubuntu is a very complete OS, especially the Gutsy Gibbon (7.10), but there are still make tweaks you can do just after installing it that will make Ubuntu shine like never. I will explain here some things I do just after have ubuntu installed. Remember that what I’ve written here are the best things to install for ME, you may consider not making some of them or installing many different things, but if so, please, share your wisdom with us all. 
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Hello there! It’s been a while that I don’t post any electronic HowTo. Since I started electric engineering my life have been quite busy, studying a lot, but some days ago I have made a simple project in which I created a metronome using some simple parts you can find in any electronic shop. And I decided to share with everyone this blog. So if you are interested, so let’s start!
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