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How to install Java 7 on Ubuntu (update 1.7.0_25)
Unfortunately JAVA is a necessary evil for many online banks. Then you need it to get access to Santander, Caixa and other Brazillian banks. To install it execute the procedure explained in this page:...
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Interactive Maps for Mobile Sites
If you are looking for an open-source maps solution to replace Google Maps with Open Street Maps then you should to know the Leaflet project: http://leafletjs.com If you want to see it in action access...
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Hacking CSR Bluetooth BC4-EXT dongle
I like these CSR BC4 chips! You can update its firmware to become a sniffer: www.evilgenius.de/wp-content/uploads/2008/03/diy_bt_sniffer.pdf You can update its firmware to become a bluetooth node to...
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A very nice KiCAD tutorial
So you decide to do a try on KiCAD and want to substitute Eagle by KiCAD!?! Good! You will find many tutorials explaining how to use it, but the best “Getting Started to KiCAD” is this one:...
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How to create an Open Source CNC
This is a nice post about how to create an open source CNC: http://wyolum.com/shapeoko-desktop-cnc-mill-build/ This CNC uses an Arduino board with a CNC Shield. This CNC Shield could be replaced with...
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Quanto usar “replaced by” e “replaced with”
No post anterior eu fiquei com duvida na frase: “The Arduino CNC Shield could be replaced with …” Eu fiquei em duvida se deveria usar “replaced with” ou “replaced by”, entao aqui vai a explicacao: Use...
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Guide to DRM-Free Living: Audio
This is a very nice listing of site which EFF success to you buy Music no-DRM : https://www.defectivebydesign.org/guide/audio Unfortunately many of these sites are not available for Brazil and other...
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Wardriving on your pocket using Android
A reason I was wanting most to install Ubuntu in my Android smartphone was to get Aircrack program working. No more the main need, because these guys hacked Broadcom chip and got airdump working on...
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Measuring low current using a low cost solution
Instead using very expensive probes as these Agilent, this guy find out a nice way to measure low current consumption:...
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Understanding Electronics Components
This is a nice open book about electronic components, very good for beginner and for profissionals as well: http://www.mikroe.com/old/books/keu/00.htm
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Open Source Movement
“Open-source puts the ability to change the world into everyone’s hands.” – Julie Uhrman
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Controlling a LED strip using a Lilypad board
I’m using this example to control my LED strip: http://bleaklow.com/2012/12/02/driving_the_ws2811_at_800khz_with_a_16mhz_avr.html Just download the source code from here:...
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How to control any infrared device using Arduino
If you want to control your TV, Ar-conditioner or any other device that uses a infrared remote control using an Arduino, then you need to know this project:...
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Avoid problems!
“A clever person solves a problem, a wise person avoids it.” – Albert Einstein
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Be an unreasonable person
“The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” – George Bernard Shaw
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Ativando o Single Sequence ou Single Shot no meu osciloscopio
Sempre que tenho que ativar o Single Shot no meu osciloscópio (Uni-T UTD2062CE) gasto algum tempo até achar a configuração certa, apesar de ser algo teoricamente simples, a quantidade de opções...
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Simple socket server/client example
If you are looking for a very simple client/server example for Linux then use this code as example: Server: #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h>...
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Analyzing IR protocol – the easy way
I was used to LIRC connecting the photodiode on serial port, but these days serial port is rare and using an USB/Serial adapter boring. Then this guy got a crazy simple idea to analyze remote control...
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LibriVox project – Free Audio Books
If you are looking for audio books because you are lazy to read it yourself or just because you want to improve your language skills then you need to know the LibriVox project. This is volunteer...
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English Figure of Speech
This post will be updated often to list some (not so) common figures of speeches used on English language: B: Break a lag: good luck. F: Faux-pas: deslize. T: Tongue-in-cheek: refere-se a uma frase que...
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