Soldering Station

Servo Motors and Industrial Control Theory presents the fundamentals of servo motors and control theory in a manner that is accessible to undergraduate students, as well as practitioners who may need updated information on the subject. Graphical methods for classical control theory have been replaced with examples using mathematical software, such as MathCad and MatLab, to solve real-life engineering control problems. State variable feedback control theory, which is generally not introduced until the Masters level, is introduced clearly and simply for students to approach complicated problems and examples.

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Servo Magazine March 2009 issue. This is my favorite Robotic Magazine.

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Enjoy the great issue of Nuts and Volts March 2009.

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The 8051 microcontroller family has been well-known over many years. The development of new derivatives is not finished yet. From time to time new powerful derivatives are announced. You will find derivatives from Philips, Dallas, Analog Devices and Cygnal and others with the known 8051 core but enhanced clock and peripherals.  For example, complete analog-to-digital and digital-to-analog subsystems were integrated in some chips. Atmel developed the AVR microcontroller family which is well suited for high-level language programming and in-system programming. For all those microcontrollers there is development software ranging from simple assemblers for DOS to integrated development environments for Windows95/98/NT on the market. Apart from programming environments for professional applications, also the more economical and nonetheless sufficiently equipped development environments can maintain ground. BASCOM-8051 and BASCOM-AVR are development environments built around a powerful BASIC compiler which is suited for project handling and program development for the 8051 family and its derivatives as well as for the AVR microcontrollers from Atmel. The programming of microcontrollers using BASCOM-8051 and BASCOM-AVR will be described in this book. Some applications help understand the usage of BASCOM-8051 and BASCOM-AVR.

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Billed as the world's first solar-powered touchscreen handset, the Blue Earth—like the recent Motorola Renew—is built out of recycled water bottles, and even boasts a pedometer that tracks how many trees you've saved by walking rather than driving.
Details on the Blue Earth, which is slated to get its close-up at next week's Mobile World Congress in Barcelona, are still sketchy; Samsung has yet to announce pricing or availability, nor any details on the built-in camera, internal storage, media features, or data capabilities.

What we do have, though, are some images—specifically, the one that shows a big solar panel on the back of the phone (there's also a camera lens sitting just above the panel). Presumably, you can charge the Blue Earth anytime it's sitting face-down in direct sunlight—but how long would it take to get a full charge? Still waiting for those details.
On the front of the Blue Earth, we have a full-on touchscreen, complete with Samsung's new, widget-friendly TouchWiz interface and dedicated Talk and End buttons. Samsung says the handset also comes with Bluetooth, a one-click, energy-efficient "Eco Mode," and an "Eco Walk" app (pictured above) that tracks your footsteps and calculates how much you've reduced your carbon footprint. 

On the front of the Blue Earth, we have a full-on touchscreen, complete with Samsung's new, widget-friendly TouchWiz interface and dedicated Talk and End buttons. Samsung says the handset also comes with Bluetooth, a one-click, energy-efficient "Eco Mode," and an "Eco Walk" app (pictured above) that tracks your footsteps and calculates how much you've reduced your carbon footprint.

Like the Motorola's green "Renew" phone (which I reviewed last week), the Blue Earth's shell is molded out of plastic derived from recycled water bottles, and its "small and light" packaging is made out of recycled paper, according to Samsung (which also notes that both the handset and charger are beryllium-, phthalate-, and brominated flame retardant-free).

That's pretty much all we know for now; until then, we'll just have to feast our eyes on the pictures.

So, what do you think: Like the idea of a solar-powered phone? Thoughts on putting the solar panel on the back of the phone? Fire away.

Source: Yahoo Tech

Download the February 2009 issue of the Servo Magazine.

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Download the February 2009 issue of Elektor. One of my  most favorite electronic magazine. 

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Nuts and Volts, the brother of Servo Magazine is back in February now. Im still searching for its January issue. If anyone has it please share it now. For the time being, download the February 2009 issue of this wonderful magazine.

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Electrical drives in general play a key role in power generation, household appliances, automotive and industrial applications. The rapidly expanding area of adjustable speed drives as used in robotics, wind turbines and hybrid vehicles is driven by innovations in machine design, power semi-conductors, digital signal processors and simulation software. This brings us to the purpose of this book namely to help students and engineers appreciate and understand the fundamental concepts of modern electrical drives. An interactive learning approach is taken in this text: theory and calculations are augmented by generic models which are transposed to a simulation platform. The 'build and play' method used in this text visualizes the dynamic operation of a comprehensive set of modules ranging from an inductance to a novel 'ideal rotating transformer' (IRTF). This module is at the center of the generic models used in this text to explore the dynamic and steady state operation of grid and converter fed induction, synchronous and DC machines. The section on modulation and control emphasizes the role of power electronics and digital signal processors in drives. The CD which accompanies this text has an extensive set of 'build and play' tutorials, in Simulink R° and Caspoc. The latter is a simulation platform which allows direct access to the 'build and play' modules, without further licensing needs. All figures in this text are included on the CD in order to help with the preparation of customized Power Point type lecture material. Fundamentals of Electrical Drives is for readers with a basic engineering knowledge who have a need or desire to comprehend and apply the theory and simulation methods which are applied by drive specialist throughout the world.

SS Presents a bunch of important information, facts and figures for all those students who want to pursue their career in the Communication field. This is related with GSM and RF interviews. It includes the questions that can be most probably asked in these sort of interviews. If you like or dislike it, please leave your comments to let us know.

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Who names newly discovered planets? What exactly are black holes? Where are there the most earthquakes? When did the first Homo sapiens walk the earth? Why is the night sky dark? How does the fluoride in toothpaste prevent cavities? Since 1845, Scientific American has answered questions and provided the best information available in all areas of science. Now, Scientific American is proud to present an accessible, one-volume reference covering all the sciences. Whether you want to examine the tiniest microbes, the properties of the earth's core, or the farthest reaches of space, this handy desk reference is the resource to turn to for the answers you need.






* Over 500 biographies of key science figures
* Thousands of glossary terms * Hundreds of useful Web sites
* Tables, charts, diagrams, and illustrations
* Sidebars featuring fascinating facts, mnemonic aids, and quizzes
* Essays exploring ideas in-depth.

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Elektor January 2009 Issue. This is my most favorite Electronics Magazine.

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CodeVisionAVR is a software for writing programming code of AVR Microcontroller. It enables you to write high level language code. This eases the task of programming to great extent.

Now with ATxmega supportHP InfoTech presents a new version of the most popular (more than 9500 registered users) commercial C Compiler for the Atmel AVR.

Compiler new features:
* redesigned ANSI C compatible C front-end
* improved code optimizer* the @ operator can now be used with variables located in EEPROM too
* improved and faster linker
* improved COFF object file generator
* improved error/warning reporting and many more..

Editor new features:
* improved syntax highlighting for both C and AVR assembly
* function parameters and global structure/union members auto complete
* redesigned Code Navigator that displays project information in a more logical way
* new Code Information tab is present after a project build. It displays detailed information about the included header files, preprocessor macro definitions, type definitions, global/static variable declarations, memory allocation and function definitions
* new Functions Call Tree that displays the maximum data stack usage in the program, with details for each function
* improved code folding and bookmarks with the possibility to save/restore
* automatic matching brace highlighting when the user places the cursor before the brace
* automatic file saving at specified time interval and many more...

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This book will provide you with a hands-on introduction to Verilog synthesis and FPGA programming through a "learn by doing" approach. By following the clear, easy- to-understand templates for code development and the numerous practical examples, you can quickly develop and simulate a sophisticated digital circuit, realize it on a prototyping device, and verify the operation of its physical implementation. This introductory text that will provide you with a solid foundation, instill confidence with rigorous examples for complex systems and prepare you for future development tasks.

AVR Simulator IDE is powerful application that supplies AVR developers with user-friendly graphical development environment for Windows with integrated simulator (emulator), Basic compiler, assembler, disassembler and debugger. AVR Simulator IDE currently supports the following microcontrollers from the Atmel megaAVR and tinyAVR product lines and mature 90S family: AT90S2313, AT90S2323, AT90S2343, AT90S4433, AT90S8515, AT90S8535, ATmega8, ATmega16, ATmega32, ATmega48, ATmega64, ATmega88, ATmega128, ATmega162, ATmega164P, ATmega168, ATmega324P, ATmega644P, ATmega8515, ATmega8535, ATtiny11, ATtiny12, ATtiny13, ATtiny24, ATtiny25, ATtiny26, ATtiny44, ATtiny45, ATtiny84, ATtiny85, ATtiny261, ATtiny461, ATtiny861, ATtiny2313. Additional AVR models sharing the same architecture will be supported in the new releases.

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Atanua is a real-time logic simulator, designed to help in learning of basic boolean logic and electronics. It uses OpenGL hardware-accelerated rendering and a custom UI designed for a fast workflow and a very low learning curve, letting the students concentrate on learning the subject instead of spending time learning the toolIt works on windows, MAC OSX/PPC, Linux.

Features Intuitive, hardware-accelerated interface. Available for Windows, Linux and Mac os X. Real-time logic simulation (at 1000Hz). Most common logic blocks, with both US and Finnish symbols. Simulation of various 74-series chips. Simulation of a 8051 microcontroller variant. Input through keyboard-bound buttons, output through various LEDs and 7-segment displays. Plug-in interface for creation of custom parts. Instant feedback through wire colors, which show signal states and error states. Helpful tooltips. Plug-ins Velleman k8055 USB experiment board plug-in - mix real-world and virtual components! 2708, 2716 and 2732 1kB, 2kB and 4kB ROM chips 27xx chips are included internally in Atanua now - plug-in still available as an example.

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