Saturday, February 27, 2010

White power led at 200 lumen/watt

 Cree Inc a stem in LED lighting industry announces the commercial availability of overripe power leds rated at 208 lumens per watt running on 350mA present. That’s one of the most powerfull leds available today with many applications in...
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Friday, February 26, 2010

Building An Active RFID People / Asset Tracking System With Mesh Networking

Nicholas Skinner writes:I recently built an active RFID tracking production. It makes use of network networking such that only a single preacher needs to be connected to a PC. Details on putting together the hardware, along with author regulation for...
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Thursday, February 25, 2010

LT2940: Power and current monitor

 The LT2940 provides the obligatory circuits to accurately criterion, overseer and whole power in situations where both the present and voltage may vary. Unlike traditional power monitors that rely on news converters and multiplying registers...
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Wednesday, February 24, 2010

The Home-Brew Spot Welder

Spot welder used to weld two pieces of metal together. Welding is achieved using sour modern that passes throught metal pieces and weld them in that identify. A transformer is used to provide sour modern. Here we honorarium three guides...
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Tuesday, February 23, 2010

Plastic card tracks your balance in real time?

This “Live Checking Card” opinion children from Yoon Jin-Young, Lee Jun-Kyo, Lee Young-Ho, and Kim Jin-Yi has been beguiling a pile of bandwidth around the tubes, lately. Ignoring the details of practical implementation, the conception itself is straightforward:...
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Monday, February 22, 2010

Circuit Board Etching, sponsored by Jameco

 ...
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Sunday, February 21, 2010

Handheld 2.4 GHz Spectrum Analyzer

Miguel build this Handheld 2.4 GHz Spectrum Analyzer insisde an antiquated cell phone adventure and used the phone’s graphical LCD to manifest measuring results. This ISM girdle spectrum analyser is based on CYWM6935 module and ATMega8 mcu. [via]...
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Saturday, February 20, 2010

TPA2011D1: World?s Smallest Class D Audio Amplifier

The new TPA2011D1 3.2-W, Class D amplifier features striking power output in a tiny packet, forging it sovereign for second reproduction mobile phones and portable media players. The TPA2011D1 includes an integrated DAC din secretion that...
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Friday, February 19, 2010

Digital Calipers DRO (Digital Read Out)

Isn’t it often the level that you spend supplementary event setting up your appliance with which you format to be fertile than actually being fertile?!? Well, that is definitely the level here at NerdKits, where we recently acquired a Smithy 1220XL...
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Thursday, February 18, 2010

Learning Objects for Electronics

 Matt  shares this thorough electronics tutorial site Learning Objects for Electronics. [via]This is a site developed by my honest companion Pat Hoppe and his colleagues at Gateway Technical College in Racine, WI. He made these stream animations...
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Wednesday, February 17, 2010

Millimeter-scale solar-powered sensor

A 9-cubic millimeter solar-powered sensor gear developed at the University of Michigan is the smallest that can harvest gusto from its surroundings to leadership. The U-M gear’s processor, solar cells, and volley are all contained in its tiny...
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Tuesday, February 16, 2010

Arkanoid game on uOLED-128-G1(GFX)

 Anna Ceguerra coded a illustrious Arkanoid pastime on uOLED-128-G1 LCD module from 4D Systems. Check it on the dovetail..The race of the pastime Arkanoid is to make the globe hit all of the tiles at the peak of the screen, without the globe...
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Monday, February 15, 2010

Arduino Mega

The Arduino Mega is the voguish micro-controller from the Arduino couple. The Mega is built around the ATmega1280. It’s exhaustive for anyone looking for additional room for law or to be able to administer a heap additional LEDs, sensors, servos, or...
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Sunday, February 14, 2010

Single-Ended (SE) DIY Tube Amplifier

This pipe amplifier replaces a palpable-governmental amplifier which was driven by a pipe preamplifier. For the pipe amplifier ambit I used a cutoff pentode (6SJ7 or 6SD7) driving a dtreak power pentode (6L6 or 5881) in a single-bygone ambit (class-A...
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Saturday, February 13, 2010

Java-based circuit simulator

This java applet is an electronic reverberation simulator. A blatant means to simulate naive circuits using a plain Java enabled browser. [via]...
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Friday, February 12, 2010

Arduino package for Eagle

Arduino tank for Eagle – eminent if you dram to make your have arduino shields. [via]...
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Thursday, February 11, 2010

25 Microchips That Shook the World

IEEE Spectrum’s pattern presents the most inovating microchips that engineers inspired the last decades. Presentation includes salient chips like NE555, PIC 16C84, μA741 etc.. transact a look at this salient pattern. [via]...
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Wednesday, February 10, 2010

Assemble your own solar panel

On this youtube video you can patrol how to put solar cells together using wire, flux and soldering. [via]...
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Saturday, February 06, 2010

MAX11835: ?Feel the touch? touch buttons

The MAX11835 haptic (tactile) piezo controller provides a flawless whitewash to drive ceramic piezo actuators to create haptic feedback for products featuring user feel interfaces. The MAX11835 can drive single-layer or multilayer piezo actuators over...
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Thursday, February 04, 2010

Use a laser cutter to make PCBs

jmsaavedra writes:I am going to step you through the process of prototyping a Printed Circuit Board using a laser cutter and supplies from your local Radioshack and hardware storeroom.  This is a process I attain perfected after several...
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Wednesday, February 03, 2010

Minty Boost: Portable USB power

 This imagine details a minor & artless, but extremely awful USB charger for your mp3 musician, camera, cell phone, and any other appliance you can plug into a USB port to earnings! The charger circuitry and 2 AA batteries unite into an Altoids...
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Tuesday, February 02, 2010