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Alisa U Zemlji Chuda
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We had a cable with 25 RGB pixels (WS2801 driven) that we folded into a 5x5 matrix. The leds are powered by an external power supply (5V/3A) and controlled with an Arduino using the WS2801 SPI library by Blip. (There are several libraries supporting WS2801 available, we just went for the first google hit.)
You can watch this short video of a linear rainbow color cycle running on it.
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Do you intend to cover more PIC programming in the blog instead of just focusing on the Arduino and Raspberry Pi?
Unfortunately we don't use PIC ourselves which makes the number of PIC related projects we encounter a bit limited.Â
However, if you're interested in learning the PIC24 there is a comprehensive list of tutorials over at Engscope that covers everything from getting started to UART, interrupts, I2C and USB HID among other things.
Good luck!
MAKE Blog has posted an article with all the best of the featured Arduino projects of 2012.Â
Many Tamagotchis Were Harmed in the Making of this Presentation
One of the more entertaining talks from the 29th Chaos Communication Congress (29c3) was by Natalie Silvanovich on reverse engineering the Tamagotchi.Â
You might remember Tamagotchi virtual pets from the 1990′s. These toys are still around and just as demanding as ever! This talk covers my attempts to hack the latest Tamagotchis. Starting with the IR interface, and moving down into the hardware, this presentation will discuss techniques for reverse engineering a device with limited inputs, computing power and debugging capabilities.
Launchpad Stellaris: PWM Tutorial
We don't use the Launchpad boards from Texas Instruments ourselves, but when we saw this exceptional tutorial on PWM using the Stellaris Launchpad  (ARM-based development board) we felt compelled to share it.
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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I have an eeepc 901 that runs Linux as my music player. It sits in the corner and, if I do nothing to tell it otherwise, Amarok will play random tracks forever. Plenty of things in my collection benefit from not being heard so I wanted an easy way to skip to the next track. Of course I could use...
Tutorial on creating split net names for EAGLE
James over at CMiYC wrote a great EAGLE tutorial on using split net names to clean up your schematics and avoid complex rats nest making it hard to find and trace connecting nodes.
SPI 8-digit display with MAX7219
We have used MAX7219 to control 8x8 LED matrices before but Embedded Lab has made a chainable (cascading) breakout board with 8 individual 7-segment LED displays using the MAX7219. It provides a way to control all 8 numeric displays using only three wires for SPI on the Arduino.
The people over at Open Electronics has designed a standardized robot shield containing a power regulator (stable 5V from 6-12V battery pack) that can handle both the Arduino and additional servos, as well as an IR-receiver and a distance sensor.Â
Bitlash
Bitlash is an open source interpreted language shell and embedded programming environment for Arduino. It runs entirely on the Arduino and interprets commands that's typed in a terminal window or sent programmatically to the serial port.
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch • No registration required • HD streaming
Nataly from Venezuela posted this on the freenode #arduino channel, together with the source code.
It uses a Nokia LCD display (PCD8544) and an 8 ohm speaker.
We wish a Merry Christmas to Nataly and all other electronics enthusiasts around the world!
Matt Hackmann over at dxprog.com has posted a video on an Arduino/Raspberry Pi setup for christmas lights, appropriately named Christmas Lights Extravaganza.
Final result of my week-long Arduino prototyping project. It is a “Terror Band”. For more information on this project visit my blog: http://eloisesmith-foster.posterous.com/arduino-day-3
Finally here! A tutorial on controlling LCD displays with an Arduino.
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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Rebuilding the original arcade version of Atari's Pong.
Imgur user pong74ls has created a gallery showing the construction of a classic version of Atari's Pong using only discrete components and no microcontrollers, just as the original.
Solarized Theme for Arduino IDE
User loglow over at the Arduino forums has put together a theme for the Arduino IDE based loosely on the dark version of the Solarized color scheme.
Download it and replace the existing theme directory with it's content.
