ARTICLES
AN ARCADE-QUALITY GAME CONTROLLER FOR YOUR COMPUTER - Phil Combs
Play those classic video arcade games from the 1980’s with your own customized controller.
PROSTHETIC SARCASM WITH EMOTICONS FOR SPEECH - Tim Deagan
Can’t find the words for what you have to say? Then go digital! Whether you’re giving a digital wink to someone across a crowded bar or an LED thumbs up to someone speaking on a stage, this device lends you all the incredible power of ASCII graphics and more! ;-)
FAMILY RADIO SERVICE MORE THAN TOY WALKIE-TALKIES - Gordon West
FRS is now a part of many local radio systems and has earned the respect of even seasoned radio amateurs who originally thought the 14 license-free channels would become another Class D CB bungle.
BUILD AN ELECTRONIC SOLAR-POWERED DIGITAL BAROMETER - Anthony J. Caristi
To some, the current barometric reading is a bit of a mystery. Learn what this weather parameter means, plus build your own electronic barometer which requires no external power source.
BUILD A MODEL ROCKET LAUNCHER - Fernando Garcia
Blast off efficiently and safely with this updated launcher.
USING BASIC TO GENERATE G-CODE - Matthew Evans
An industry standard method to control a CNC milling machine after it’s built is to create a G-code file that is interpreted by the milling machine’s computer. This article explores using Basic programming to create the G-code instruction file.
MISCELLANEOUS “555” CIRCUITS - Ray Marston
Discover a variety of unusual ways to use a 555 timer IC in applications such as Schmitt triggers, astable gadgets, alarms, and long-period timers.
THE “XYLOTRON” — ’BOT WITH A BEAT - Bob Lang
You’ll be singing praises when you construct this musical project — turn a xylophone into a MIDI instrument that can be played manually or by a computer interface.
FLAME FLICKER SIMULATOR - Dennis Eichenberg
Keep your candle burning with this simple circuit. It’s ideal for jack-o-lanterns!
COLUMNS
AMATEUR ROBOTICS NOTEBOOK - Robert Nansel
Robert begins a design dialog on what goes into building robots to meet specific requirements. This month, he leads off with what it takes to build an elementary two-wheel drive system for a sumo bot.
ELECTRONICS Q & A - TJ Byers
Plans for a sound level alarm and a unique volume limiter for a 20-meter receiver. Where to find manuals, teaching aids, and schematics for all sorts of devices and technologies.
OPEN CHANNEL - Joe Carr
Using the P-I-N Diode
The PIN diode has a number of uses that are unique, and will do some of the same jobs as regular signal diodes, only better. This month’s column looks at the structure of the PIN diode and some of its applications.
STAMP APPLICATIONS - Jon Williams
A Stamp-II ISD Sound Lab
Last month’s project — the pet trainer — used the ISD in its simplest mode. However, with a little more work and some more connections, you can make the ISD25xx do all sorts of cool things, like adding speech to your favorite projects.
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