Nuts & Volts (ISSN 1528-9885/CDN Pub Agree #40702530) is published monthly for $26.95 per year by T & L Publications, Inc., 430 Princeland Court, Corona, CA 92879. PERIODICALS POSTAGE
PAID AT CORONA, CA AND AT ADDITIONAL MAILING OFFICES. POS TMAS TER: Send address changes to Nuts & Volts, P. O. Box 15277, North Hollywood, CA 91615 or Station A, P. O.
Box 54, Windsor ON N9A 6J5; email@example.com.
4 November 2013
08 TechKnowledgey 2013
Events, Advances, and News
The first human B2B interface, the world’s thinnest
keyboard, digital detox, and some tough little fuses
are some of the tittilating tidbits you’ll read about.
12 The Spin Zone
Adventures in Propeller Programming
Digging Into Dynamixels.
Learn the inner workings of these drivers, so you
can use them to make your own projects move.
Reader Questions Answered Here
A Jacob’s ladder redux, a video monitor alarm, and
robot communication issues are discussed this time.
53 Smiley’s Workshop
Programming • Hardware • Projects
Arduino Handheld Prototyper — Part 5.
Data Logging — Take a look at the SRAM and
EEPROM on the Arduino, then graduate to SD cards
to learn cheap and easy ways to store LOTS of data.
62 Near Space
Approaching the Final Frontier
A New Airframe Design for Near Spacecraft
— Part 1.
After a recent capsule landing that did not go
smoothly, it was the opportune time to come up
with a better and stronger design.
71 The Design Cycle
Advanced Techniques for Design Engineers
Discovering a Better and More Powerful
One of the first commercial operational amplifier-based computing components was the Model K3-A
Adding Component. Unfortunately, you needed a full
blown lab to gather the K3's analog
results. In contrast, the Analog
Discovery packs an oscilloscope,
waveform generator, voltmeter, and
digital I/O into a space smaller than
the first vacuum tube operational
28 Quick and Easy USB Keyboard Input
This circuit is perfect for any application where
you use a physical trigger to input data onto a
computer. Read how it was implemented for video
TIC-TAC-TOE and a bag toss game.
■ By William Pippin
34 Build the CHROMATICON
Want to be sure you’re playing musical chords
correctly? This unit will tell you if you are and
display a light show in the process.
■ By Matthew Bates
40 Build a Personal Guitar
Fine-tune the sound for your guitar just the way
you want it with this handy device that will also
work with Karaoke machines,
boom boxes, and
surround sound systems.
■ By Ron Hoffman
46 MakerPlot — The DIY Software Kit
Besides being a great debugging tool, the real
power of this customizable software is in its ability
to become a virtual instrument for your
■ By John Gavlik and Martin Hebel
07 READER FEEDBACK
24 NEW PRODUCTS
68 NV WEBSTORE
78 TECH FORUM
80 AD INDEX