DDS and the Electronic Music Box
by Craig Lindley
Make Music With Digitally Generated Analog Signals. Page 28
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Nuts and Volts Magazine - April 2012
Direct Digital Synthesis
Features
Return to Transistor Land
by Keith Bayern
This article describes Keith’s process of designing a no-IC, high voltage power supply for his updated Nixie-Transistor clock. Page 36
Add USB Devices to Your Projects
by Jan Axelson
Data storage, user input, printing, audio, video, and network communications are just a few of the functions that off-the-shelf USB devices can perform. Learn how to include USB devices in your creations with the BeagleBoard-xM. Page 40
Using Color Graphics and Widgets with the 32-bit Micro Experimenter
by Thomas Kibalo
Discover and harness the power of widgets to use on your Experimenter board. Page 46
Columns
Techknowledgey
by Jeff Eckert
TechKnowledgey 2012
This month, read about an alarm that combines light and sound, the magnetic memory limit being attained, a tablet to take without water, plus some other interesting stuff. Page 10
PICAXE Primer
by Ron Hackett
PICAXE Primer
Developing software for the LED-2x7 project board. Page 14
Q&A
by Russell Kincaid
Q & A
Get answers about LED flasher circuits, lighthouse lamps, PCMCIA memory cards, and multi-station intercoms. Page 22
Smiley’s Workshop
by Joe Pardue
Smileys Workshop: An AVR C Programming Series (Part 45)
Chaser Light Marquee – Part 1 Page 56
Fundamentals For Beginners
FUNdamentals For Beginners
Build Railroad Lights. Page 64
Open Communication
by Louis E. Frenzel
Open Communication
How to get your ham license. Page 68
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