Projects & Features
30 The Retro-Shield: Where the Past
Meets the Present
Combine a vintage vacuum tube with
an Arduino for an updated version
of an AM broadcaster.
■ By David Goodsell
38 Hacking the Nine-LED Flashlight
The simple circuit in these now common
flashlights actually eats through batteries pretty
fast. This hack adapts the flashlight to use an
external power source, and adds a pulsed driver
circuit for better efficiency.
■ By Dan Gravatt
43 How to Make Professional Looking
Control Panels and Enclosures
— Part 1
Don’t you hate it when you’ve worked really hard
on a project, only to have the finished product
look like a six year old put it together? This
tutorial will show you a cheap and easy way
to make great looking panels and enclosures
when you aren’t able to utilize professional
■ By Gordon McComb
10 TechKnowledgey 2013
Events, Advances, and News
Tapping into tap water, a super “duper,” and
core memory’s 60th anniversary are just a few
of the things you’ll read about this time.
14 PICAXE Primer
Sharpening Your Tools of Creativity
Experimenting With Parallel Task Processing.
All M2-class processors include this new software
feature that allows them to simulate a multi-core
processor by rapidly switching between two or
more separate tasks.
Reader Questions Answered Here
Topics include a pet trainer, bandpass filters,
a push on/push off circuit, a DC servo, a voltage
reducer, plus Mailbag.
54 Smiley’s Workshop
Programming • Hardware • Projects
The Arduino Proto Shield Alarm Clock — continued
We‘re winding down our discussion on how to
use Fritzing to take an Arduino design from
prototype to production.
The Design Cycle
Advanced Techniques for Design Engineers
Walking the USB Bridge into Androidville.
FTDI gave us the power to easily embed USB
functionality into our projects with the FT232RL.
The FT311D USB Android host IC enables us to
walk across the USB bridge that FTDI built into
The Latest in Networking and
60 GHz Wireless Transports HDTV.
Transmitting uncompressed digital high
definition television signals is no easy task.
Learn about the technologies that are currently
being used to accomplish these transmissions.
72 NV WEBSTORE
78 TECH FORUM
80 AD INDEX
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6 April 2013