Contents
Vol.32, No.2; February 2019
Features & Reviews
14 Medical, Health and First Aid Smartphone Apps - Part 1
There’s an enormous range of apps out there which allow your smartphone to
do some pretty fancy diagnosis . . . or help your medical specialist treat your
particular malady with vital, accurate data – by Dr David Maddison
SILICON
CHIP
www.siliconchip.com.au
Own a smartphone? Take
advantage of the huge
range of Android and
iPhone apps and addons available (and more
coming all the time) to
keep track of your health
– Page 14
30 Review: Rigol’s MSO5354 Mixed Signal Oscilloscope
Tim Blythman takes a detailed “hands on” look at this latest model from Rigol
(distributed by Emona). His verdict: “one we would definitely consider!”
35 El Cheapo Modules 22: Stepper Motor Drivers
Last month we explained in detail how stepper motors worked. Here are three
low-cost stepper motor drivers that you can use – by Jim Rowe
88 Review: Philips “Brilliance” Ultrawide Monitor
When they say “brilliance” and “ultrawide”, they’re not exaggerating! It’s almost
as big as your desk, meaning you can have so many windows open at once!
And the quality? As they say, “brilliance” – by Nicholas Vinen
Constructional Projects
20 Versatile Trailing Edge Dimmer with Touch Plate & IR
Most dimmers are “leading edge” meaning they’re hopeless with most electronic
lighting. Our new Trailing Edge Dimmer overcomes the problem – and gives you
both touch plate AND infrared remote control! – by John Clarke
Our new
“trailing edge” dimmer
has no problems with dimmable
LEDs, CFLs, etc – and you can
control it with an IR remote
or via a touch plate – Page 20
Ever wanted something to switch
a 12V circuit on when
it detects movement?
Here’s a cheap little
project that will do
exactly that!
– Page 48
48 Motion-sensing 12V Power Switch
Designed for a specific task but then we realised just how useful this circuit could
be! It’s cheap, it’s simple . . . but it works like a little beauty! – by Nicholas Vinen
68 USB Mouse and Keyboard Interface for Micros
Working with micros is fun – but how do you connect a USB mouse or keyboard
to them? We solve that little problem with this one – by Tim Blythman
80 Our new DAB+ Tuner with FM and AM: Building it!
Last month we told you about our world-beating DAB+/FM/AM receiver. Has that
caused some interest! Now the fun begins: putting it together – by Duraid Madina
Your Favourite Columns
42 Circuit Notebook
(1) Making a cheap WiFi controlled relay board work
(2) Modular quiz buzzer system
(3) Electret mic “crystal” set
(4) Four channel sound system using a single woofer
How DO you interface a keyboard
or mouse to a micro? With this nifty
USB Keyboard & Mouse Interface,
that’s how! – Page 68
We introduced our
new world-beating
DAB+/FM/AM receiver
last month . . . now we
get into the fun part:
BUILDING IT!
– Page 80
62 Serviceman’s Log
(What) were the designers thinking? – by Dave Thompson
94 Vintage Radio Workbench
1970s BWD 216 Hybrid Bench Supply – by Ian Batty
Everything Else!
2 Editorial Viewpoint
4 Mailbag – Your Feedback
siliconchip.com.au
61 Product Showcase
102 SILICON CHIP Online Shop
It’s not just wide, it’s ultrawide! The
49-inch curved Philips Brilliance
499P9H is “strongly recommended”
104
111
112
112
Ask SILICON CHIP
Market Centre
Advertising Index
Notes and Errata
– Page 88
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