Название: Elektor
Год: 2013
Месяц: Май
Номер: 5
Формат:DjVu
Язык: Английский
Размер: 5.05 Mб
Elektor - популярный зарубежный журнал по электронике и схемотехнике
CONTENT
• Community
8 Elektor World
• Whip it Up
• Return of the Tapir e-smog meter
• Into the Nerd Cave
• Elektor Labs opens on Lamington Road, Mumbai
• Spark your Design
• Tech the Future
70 The Invisible User interface
There is a strong trend toward usability in industrial design and in
human-computer interaction. That primarily revolves around efficiency,
effectiveness, safety and ease of use. In short, the user interface.
• Projects
10 Embedded Firmware Library
The modular EFL (Embedded Firmware Library) lets you write applications
and modules that can be easily transferred from one board to another.
Meaning you are no longer locked in to a single microcontroller
manufacturer but rather just write for embedded Linux in general.
18 500 ppm LCR Meter (3)
This month we get practical by covering the LCR Meter's circuit board
assembly, parts lists, casing, and calibration in just 8 pages.
26 From BASIC to Python
Python is a high-level language particularly associated with small computer
systems such as the popular Raspberry Pi. The language is marked by
clarity and conciseness. Gone are the brackets and semicolons which gave
headaches in Pascal, С and Java, not to mention BASIC.
32 Taming the Beast (4)
Once you start using virtually the entire FPGA chip for an application
written in a hardware description language (HDL), examining the circuit
inside the chip is difficult at best, so simulation is In order
40 Elektor Linux Board Extension (2)
In this second and closing installment we look at the hardware and
software interaction between the buttons and the LC display on the
board — all with a view to learning how to program a well thought
out menu.
43 OTA-based Triangular Wave Generator
Although many applications of OTAs have been described, the basic circuit
of a non-sinusoidal oscillator exploiting an OTA's specific advantages is a
rare find. This design brief describes a combined triangular and rectangular
wave oscillator with two OTA circuits.
46 BaroStick
This USB barometric pressure sensor uses a Bosch sensor to measure the
air pressure and temperature, after which this data can be displayed
graphically and stored using Windows software,
50 Program Like the Professionals
State diagrams see increasing use in software development. This article
looks at how you can use them to make your programs more robust and
free of bugs
• Industry
58 Raspberry Pi: one year later, one million sold
An interview with Peter Lomas, a hardware designer behind the
Raspberry Pi computer.
62 News & New Products
• Labs
54 Sorry about my English
Even if your English is fraught with gramatikall miztakez, do submit your
project at elektor-labs.com.
56 PCB production pitfalls
Some issues to consider when wave soldering SMD components.
57 Ceramic C's off the mark
Here's an intriguing phenomenon concerning the value of 150-pF
capacitors before and after soldering
• Magazine
74 Retronics: Wandel & Golter-mann NE-171 MultiVoItage
Tube PSU (ca. 1963)
This power supply for science labs and radio/TV repair outfits has just
about everything you can desire or dream of when working with tubes.
Series Editor: Jan Buiting.
78 Hexadoku
Elektor's monthly puzzle with an electronics touch.
79 Gerard's Columns: Credibility
A column or two from our columnist Gerard Fonte.
82 Next Month in Elektor
A sneak preview of articles on the Elektor publication schedule.
