Get free access to our online edition!


Show issues for


April 2009

Nuts and Volts Magazine


Features

A Practical Guide to Using A Bitscope

EXCLUSIVE-ONLINE ARTICLE. A computer-based scope called the BitScope.


Steinmentz Father of Elec Engineering

EXCLUSIVE-ONLINE ARTICLE. Historians often miss inventor’s most important inventions — and even miss great inventors altogether!


A Primer on Phase Locked Loops

Learn the fundamental principles that PLL circuits embody and try your hand at a couple applications.



Projects

Inductive Proximity Sensors Part 2

As promised last month, the two different operation modes will be explained, as multople coils in a differential sensor approach are used.


Build the RetroGame

Build it, play it, and re-master your skills at Retro Rover and Retris.



Columns

TechKnowledgey
by Jeff Eckert
TechKnowledgey 2009
Topics covered include "meat" for robot brains, rodent power, dangerous printer particles, plus other cool stuff.

The Design Cycle
by Fred Eady
The Design Cycle
Older language, newer interface.

Q&A
by Russell Kincaid
Q&A
Softening up a table saw, returning light to Christmas, high voltage generation, plus more.

Personal Robotics
by Vern Graner
Robot Art
In an attempt to explore some of the interesting and inspiring ways art and technology intertwine, this month we will focus on a number of works from some talented technoartisans who have used technology and robotics to pursue their muse in interesting and ingenious ways.

PICAXE Primer
by Ron Hackett
Taming Unruly LCDs: Part 1
In the previous installment of the PICAXE Primer, I said we would turn our attention toward interfacing our Master Processor with inexpensive LCD displays based on the Hitachi HD44780 controller

Smiley’s Workshop
by Joe Pardue
Smiley’s Workshop 9: The Arduino Way
Coming up to speed with the Arduino — Going back before we go forward. Part 9

Open Communication
by Louis E. Frenzel
Wireless Made Easy with a New Kit
Think of your TV remote control, garage door opener, remote keyless entry on your car, and other wireless devices you use daily. Now you can bring that convenience and functionality to other projects.

Departments

The Art of Diagnosis
by Bryan Bergeron
From Developing Perspectives