Projects & Features
32 Light Up Your Clothes
With Wearable Electronics
Add a special kind of bling to your outfits with
electroluminescent (EL) wire.
■ By Pres Tuesley
38 Build the RTC OSD for
Add a date/time stamp to your closed circuit
television camera system with this real time
clock-based on-screen display.
■ By Kelly Lewis
46 Pill Timers — Big Medicine for
Your Little Projects
One of the neatest things about pill timers is
their size, so you can easily add them to any
of your projects, curing the headache of
■ By James Lyman
The SparkFun ProtoSnap
Whether you’re new to the Arduino or an old
fan, the Pro Mini development platform —
which is made up of pre-wired boards and a
small pile of components — is worth
■ By Bryan Bergeron
10 TechKnowledgey 2011
Events, Advances, and News
The most complex ground-based observatory comes
to life, a CPU sets a world clock record, and using
an iPhone for medical imaging are just some of the
current topics covered this time.
14 PICAXE Primer
Sharpening Your Tools of Creativity
Upgrading the recent serial LCD project.
22 Q & A
Reader Questions Answered Here
Learn about a deer repellant circuit, a sine wave
modulator, IR remote control, plus a lot of other
stuff people have questions about.
60 Open Communication
The Latest in Networking and
Building a crystal radio — is it a sane thing to do?
68 Smiley’s Workshop
Programming • Hardware • Projects
Digital I/O — Part 3: Bitwise Operations.
09 READER FEEDBACK
26 NEW PRODUCTS
FUNdamentals For Beginners
58 Build an English Police Siren
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