6 May 2016
24 A Volume Controller Using
Any Infrared Remote Control
The sound systems that come standard with today’s flat
screen TVs leave something to be desired. So, why not fix
that and keep your couch potato status at the same time?
■ By Harry Moore
30 1/f Random Tones — Making
Fractal Music with an Arduino
Wanna make some music with your Arduino? Then, roll
the dice with a unique program that lets you do just that.
■ By Tony Scarpelli
36 The Personal Computer in
The initial use of computers in ham radio simply involved
logging contacts with other ham stations. This discussion
will talk about more extensive ham radio contesting
programs, with an additional overview of all the myriad
uses of computers in ham radio.
■ By John Thompson
40 Old Heathkits Never Die, They
Just Get Restored
If you enjoy restoring old electronic equipment, then
you’re gonna love this description of bringing an EC-1
back to life.
■ By David Goodsell
45 Vintage Computing — Five
More Projects for the Mentor’s
Again utilizing our retro Amigo computer — the home-built mentoring platform discussed originally in our
December 2015 issue — here are five additional projects
you can do with your young protégé that all help keep the
fun and learning going.
■ By Dane Weston
10 TechKnowledgey 2016
Events, Advances, and News
Reads this time include nothing to sneeze at, a handy
biometric padlock, an opportunity for researchers to get
money from DARPA, plus other interesting tidbits.
Reader Questions Answered Here
Asked and answered is a question on low battery
indicators/life, plus a lot of Mail Bag.
20 The Ham’s Wireless
Practical Technology from the Ham World
Waves and Propagation
Radio and wireless are all about waves and how they link
distant points together. Learn about RF propagation in the
next couple installments of this column.
52 The Design Cycle
Advanced Techniques for Design Engineers
Portable RF Mesh Alarm System Can be
Monitored From Anywhere
We will combine an easy to set up and use RF alarm
system with a 32-bit Io T node. The result is a portable 40-
node RF mesh alarm system that can be monitored from
anywhere in the world.
58 The Spin Zone
Adventures in Propeller Programming
Simple. Practical. Propeller.
Whether you create a brand new platform or start with
something that already exists, designing your own
custom templates for programming projects is really the
way to go.
09 READER FEEDBACK
18 NEW PRODUCTS
56 NV WEBSTORE
63 AD INDEX
64 TECH FORUM
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