Название: Elektor
Год: 2013
Месяц: Ноябрь
Номер: 11
Страниц: 84
Формат:DjVu
Язык: Английский
Размер: 6.34 Mб
Elektor - популярный зарубежный журнал по электронике и схемотехнике
Contents
• Community
8 Elektor World
• Let Your Brain Do the Thinking
• All Smiles
• The Internet of Things' Launching Point
• That Sounds Good!
• Projects
10 CAN Tester
The circuit described here has all the features required for conducting
various experiments and tests on a CAN bus. In addition there is the option
of connecting the tester to an existing CAN bus to monitor the data or to
track down faults.
18 Elektor Linux Board: New and Improved!
The compact and low-cost Elektor Embedded Linux board has been
available to buy for around a year and a half now. Along with its
accompanying series of articles it offers even beginners access to the world
of embedded Linux. It is now time for us to update the board based on
feedback from the user community. To begin with let's add LAN and RTC.
22 Important Update to the Elektor 500 ppm LCR Meter
Here we correct two shortcomings liable to interfere with proper operation of
the instrument: occasional hang-ups and issues with the Trim actions.
26 Multichannel
Temperature Logger
This project allows you to log up to six temperature readings over a period of
time, complete with time stamps, all written to a .csv file stored on an SD
card for processing on a PC. Local control is also available in the form of an
LCD and a keypad.
32 USB Thermometer
When you need to hook up some electronics to an RS-232-less computer,
the USB port looks like the only option. The computer however needs a
corresponding software driver. Here we describe an elegant patch around
this problem.
42 Bidirectional
Stereo Input Selector
Following a recent appeal made in the magazine calling on our readers to
send us their own circuit designs—if possible simple and preferably in fields
that receive less coverage in Elektor, like audio, for example—we received
this suggestion which meets the two main criteria: uncomplicated and
intended for processing sound signals.
46 LED Lighting for Model Buildings
This small module has been designed to individually control five LEDs used
to illuminate model buildings. The control signal is sent over a single wire
from a PC's RS232 serial port. The design allows for up to 250 modules to
be controlled by a single PC, that's almost enough for a small town!
• DesignSpark
38 DesignSpark Tip & Tricks, Day #5: generating PCB
manufacturing files
Today we will generate the Gerber files and BOM information for the design
we laid out last time. DesignSpark has excellent support for generating
these types of files once it's been configured properly.
• Labs
50 .Labs Tips & Tricks
This month we present a selection of projects posted on Elektor.Labs and
looking for a helping hand to reach the finish line. Can you cheer and/or
assist?
52 Standards for Coding
Often a lot of time and energy is spent on designing an elegant,
well-thought-out and robust circuit. Today, the brains of many of those
circuits is a microcontroller that needs software to function. Is it
unreasonable then to expect a well-designed, properly written program to
make such a quality circuit work? Apparently it is. Let's talk software quality.
58 Keep The Pins Afloat
Forget to tick a few boxes and your entire FPGA project fails to work, as our
lab workers found out the hard way.
60 PCB Prototyper Master Class
Here's a how-to on an advanced application of the Elektor PCB Prototyper
milling machine.
• Tech The Future
68 Forze VI:
A Hydrogen-Powered Racecar
The Forze VI weighs just under 2,000 lbs., achieves a top speed of 138 mph,
and accelerates from 0 to 60 mph in 4 seconds. The heart of the racecar is
the fuel cell system.
• Industry
64 News & New Products
A selection of news items received from the electronics industry,
labs and organizations.
• Magazine
70 Retronics: Freystedt's Audio-Frequency Spectrometer
The story of finding and restoring the extremely rare 1935 Siemens
Spectrometer, a landmark in electro-acoustic measurement.
Series Editor: Jan Buiting.
76 Hexadoku
Elektor's monthly puzzle.
77 Gerard's Columns: Conscientious Objector
A column or two from our columnist Gerard Fonte.
82 Next Month in Elektor
