Projects & Features
28 Build An LED
This unique clock project is
a great mix of analog and
digital electronics all in one.
■ By David Welburn
10 TechKnowledgey 2011
Events, Advances, and News
Read about fractals that could cure blindness,
the first quantum computer that has been
sold, the other lighting alternative, plus some
other interesting stuff.
34 Build the
Construct this updated
version of an infinity mirror
using LEDs controlled by an
■ By Craig A. Lindley
14 PICAXE Primer
Sharpening Your Tools of Creativity
Using EEPROMs to Store and Retrieve Data.
22 Q & A
Reader Questions Answered Here
Zeners at high frequency, an LED flasher
circuit, and a refrigerator door alarm are
covered this month.
38 Build a Miniature
Create your own light show
with colored LEDs that flash
to the beat of your favorite
■ By Ron Newton
54 The Design Cycle
Advanced Techniques for Design Engineers
Give Your Bits Some AIR.
62 Open Communication
The Latest in Networking and
Bluetooth: Forgotten Wireless Technology or
Just Taken for Granted?
67 Smiley’s Workshop
Programming • Hardware • Projects
26 NEW PRODUCTS
73 NV WEBSTORE
78 TECH FORUM
80 AD INDEX
44 Build the 3D LED
Construct this eye-catching 4 x 4 x 4
monochromatic LED matrix that will
give you hours of enjoyment
■ By John Iovine
ON THE COVER!
FUNdamentals For Beginners
Just getting started in electronics? Try these
simple demos to illustrate electronics principles and
how components function in actual circuits!
76 Build a DC to DC Power Supply
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