EE_2012-05.pdf

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[ MICROCONTROLLERS & EMBEDDED ANALOGUE AUDIO DIGITAL TE S T & MEASUREMENT ]
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May 2012 AUS$ 14.90 - NZ$ 17.90 - SAR 105.95 - NOK 102 £ 4.90
www.elektor.com
Embedded Linux
Made Easy
Part 1: Kickoff
Inside Pico C-Super
AT2313 programming Z80 style
Lossless Load
Keeps energy waste low
High-End MM/MD Preampliier
Vinyl & The LPs strike back
Platino Controlled by LabVIEW
An introduction to LIFA, a LabVIEW interface for Arduino
Personal Download for I © Elektor
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Personal Download for I © Elektor
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10 DEC Commandments of
Electronics
00 h . Beware the lightning that lurketh in an
undischarged capacitor, lest it cause
thee to be bounced upon thy buttocks
in a most ungentlemanly manner.
01 h . Cause thou the switch that supplies
large quantities of juice to be opened
and thusly tagged, so thy days may be
only on this earthly vale of tears.
02 h . Prove to thyself that all circuits that
radiateth and upon which thou wor-
keth are grounded, less they lift thee
to high frequency potential and cause
thee to radiate also.
03 h . Take care thou useth the proper
method when thou taketh the
measure of High Voltage circuits so
that thou doth not incinerate both
thee and the meter; for verily, thou
hast no account number and can easily
be replaced, the meter doth have one,
and as a consequence, bringeth much
woe unto CEO, Accounts & the Supply
Department.
04 h . Tarry not amongst those who engage
in intentional shocks, for they are not
long for this world.
05 h . Take care thou tampereth not with
interlocks and safety devices, for this
will incur the wrath of thy Seniors and
bringeth the fury of the Safety Oficer
down about thy head and shoulders.
06 h . Work thou not on energised equip-
ment, for if you doth, thy buddies will
surely be buying beers for thy widow
and consoling her in other ways not
generally accepted by thee.
07 h . Verily, verily I say unto thee, never ser-
vice High Voltage equipment alone,
for electric cooking is a slothful pro-
cess and thou might sizzle in thine
own fat for hours on end before thy
Maker sees it to end thy misery and
drag thee into His fold.
08 h . Trile thou not with radioactive tubes
and substances, lest thou commence to
glow in the dark like a lightning bug, and
thy wife be frustrated nightly and have
no further use for thee except thy wage.
09 h . Commit thou to memory the works
of the Prophets, which are written in
the Instruction Books, which giveth
the straight dope and which consoleth
thee, and thou cannot make mistakes
— yeah, well, sometimes, maybe, sorry
‘bout that.
6
Colophon
Who’s who at Elektor.
8
News & New Products
A monthly roundup of all the latest in
electronics land.
14
Embedded World 2012
What’s happening in the embedded
world is displayed at the Embedded
World electronics show in Nürnberg,
Germany. A report.
17
The RL78 Green Energy Challenge
has begun
Present your Green Energy design and
help create a future that’s bright, clean
and healthy.
18
Embedded Linux Made Easy (1)
This article kicks off a beginners’ course
on embedding this popular OS in an
inexpensive circuit board.
24
Platino Controlled by LabVIEW (1)
Quickly develop your application using
these programming environments.
}
28
Preampliier 2012 (2)
Presenting a high-end Moving-Coil/
Moving-Magnet (MM/MC) board.
34
Lossless Load
A ‘green’ solution to limit energy waste
normally occurring in a shunt.
40
Inside Pico-C-Super
In this article we delve into the software
that makes the instrument tick.
43
E-Labs Inside:
Mounting Nixie Tubes,
Quality check & Transformer testing,
Stray oscillations,
All the latest: LCR Meter & Piggybacking-1 k.
47
What are you doing?
This month we visited Mark Brickly,
inventor of the Minty Geek.
(author unknown)
4
05-2012 elektor
Personal Download for I © Elektor
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Volume 38
May 2012
no. 425
CONTENTS
48
QuadroWalker
This small four-legged robot walks with
eight servos.
18
Embedded Linux Made Easy (1)
Today Linux can be found running on all sorts of devices, even coffee ma-
chines. Many electronics enthusiasts will be keen to use Linux as the basis
of a new microcontroller project, but the apparent complexity of the op-
erating system and the high price of development boards has been a hurdle.
Elektor solves both these problems, with a beginners’ course accompanied by
a compact and inexpensive circuit board.
52
Electronics for Starters (5)
This month we examine ways to generate
stable voltages.
58
AVR Software Deined Radio part 3
In this month’s instalment we look at a
few experiments involving amplitude and
frequency modulation.
65
Component Tips
Raymond’s Pick of the Month: MOSFETs
with unusual characteristics.
28
Preampliier 2012 (2)
66
Energy Monitor
With this mini project you can judge how
much energy an electrical load is using.
High-end turntables are available at extragalactic prices but none of this makes any
sense if you do not have a preampliier to match your MC or MD cartridge optimally
and that’s exactly what the present design does — rather successfully. Part 2 of our
preampliier 2012: the Moving-Coil / Moving-Magnet (MC / MM) board.
68
SHT11 Humidity Sensor Connected
to PC
This sensor conveniently measures both
temperature and humidity in an all digital
way.
70
RAMBOard-Serial
A static RAM controller with an SPI
interface provides ample memory to
small 8-bit processors.
40
Inside Pico C-Super
The Pico C-Super is an extended version of the original idea with several extra
functions crammed into the same extremely simple and low cost hardware
through the use of software. In this afterburner article we delve into the soft-
ware that makes the instrument tick, particularly the Plus version.
72
Retronics:
Elektor Logic Analyser (1981)
Series Editor: Jan Buiting.
75
Hexadoku
Elektor’s monthly puzzle with an
electronics touch.
58
AVR Software Deined Radio
part 3
76
Gerard’s Columns: Reliability
The monthly contribution from our US
columnist Gerard Fonte.
The popular ATmega88 AVR microcontroller can be used for digital signal pro-
cessing tasks. In this instalment we will look at a few experiments involving am-
plitude and frequency modulation, including a small DCF time code test trans-
mitter. We will also extend the hardware by adding an active ferrite antenna
which will allow longwave and mediumwave signals to be received.
84
Coming Attractions
Next month in Elektor magazine.
elektor 05-2012
5
Personal Download for I © Elektor
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