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TURN YOUR HOME INTO A ROBOT - Karl Lunt
Turn your home into a “sensing machine” utilizing X10 technology and some robotic-type principles.
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UNUSUAL TRACE SWITCHER - Stanley York
Have you ever tried to adjust the gains of a number of analog signal stages for equilibrium when those signals interact with each other? Well, here’s a circuit that maintains a good handle on what is normally a painful exercise.
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USING SEVEN-SEGMENT DISPLAYS
— PART 1 - Ray Marston
Learn the basic operating principles for using seven-segment alphanumeric displays.
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HAWAII TO CALIFORNIA TROPO TIME SOON - Gordon West
This year, the tropospheric ducting opportunity will not be limited just to specialized single-sideband or CW emissions, but will encompass common frequency modulation mode communications between Hawaii and the mainland on two meters — thanks to some generous donations.
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ADD A UNIVERSAL SERIAL BUS INTERFACE TO YOUR NEXT PROJECT — IT’S EASIER THAN YOU MIGHT THINK! - Don Powrie
If you can write Windows application software that can open, read from, and write to the PC’s RS-232 serial ports, then you already know enough to incorporate USB into your next hardware design!
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LASER MEASURE - John Boyd
Set your sights on this device that uses two laser diodes, coupled to a microcontroller, for measuring lengths and angles. This is a little bit different approach since it relies on the visibility of two laser spots to measure lengths, as opposed to distances.
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SMALL LOGIC GATES SPAWN BIG
DREAMS — PART 1 - T J Byers
Learn how to turn your junk box orphans into a construction project or replacement part treasures.
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BUILD THE BREATH-O-METER - Anthony Caristi
This simple, but sophisticated electronic testing device checks blood alcohol concentration.
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CYBER-STREET SURVIVAL — PART 5
“SECURITY AND OTHER THINGS”- M L Shannon
Hackers
Learn about hackers, viruses, Trojan Horses, and encryption. Plus, take a look at several programs, starting with a port scanner.
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| COLUMNS |
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AMATEUR ROBOTICS NOTEBOOK - Robert Nansel
Nano-scale cloggers and eye gloopers, Solarbotics SunSeeker kit, and a much-anticipated update on Heavy Iron.
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TECHKNOWLEDGEY 2001 - Jeff Eckert
Events, Advances, and News from the Electronics World.
World’s first plastic superconductor; clock rates may become irrelevant; Pentium 4 is disappointment; web site provides computer security data; 61-inch plasma monitor ready for production; 48GB hard drive is quietest; and “Father of Information Theory” passes on.
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STAMP APPLICATIONS - Jon Williams
Lookin’ for the Light
Have some good, clean experimental fun connecting a couple types of light sensors with the BS2.
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ELECTRONICS Q & A - TJ Byers
Learn how to create hard-to-find and esoteric parts using simple devices you probably have in your junk boxes; a keypad encoder; slick Internet tips; tutorial web sites; and everything you ever wanted to know about coils and inductors (but were sorry you asked). |
