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4 May 2014
08 TechKnowledgey 2014
Events, Advances, and News
Learn about reverse solar generation, digging up
dirt on neighbors, teeny-tiny MCUs, plus some
other timely topics. 12 Smiley’s Workshop
Programming • Hardware • Projects
The Arduino Classroom.
Arduino 101/Chapter 5: Analog Output
Get your fill of the serial class of functions,
the differences between analog and digital signals,
and how to use these signals to control LEDs
and servomotors. 60 The Spin Zone
Adventures in Propeller Programming
Oh, Say, Can you I2C?
Sometimes programming aficionados assume
concepts that are simple to them are understood
by everybody when, in reality, they are not. I2C is one
of these topics. Get up to speed on this protocol
so you can spin circles around fellow enthusiasts.
68 Near Space
Approaching the Final Frontier
A Thermometer for the Totable
Thermal Vacuum Chamber.
I needed to know the temperature of what was going
on inside my TVC while I was running tests,
instead of after the test was done. I couldn’t find
an affordable thermometer that mimicked
near space conditions, so I turned to a
26 72 Watt Constant Voltage/Constant Current Power Supply
This cost-effective unit will help prevent catastrophic
events to components and keep your batteries
charged up, as well.
; By Allen Ripingill 34 Do-It-Yourself Surface-Mount Printed Circuit Boards
Continue your learning journey in electronics
by making your own surface-mount PCBs.
t’s not as hard as you
might think it is.
; By David Dorhout 42 Game Programming for the Arduino
Not only is it simple to
write game programs,
it’s downright fun.
; By Garry Paul Spencer
48 Calculators as Coprocessors
Connect Texas Instruments’ calculators to Arduinos
to extend this open source prototyping platform’s
computing power for math functions and to make
graphic capabilities easier to implement.
; By William Massano 54 MakerPlot — The DIY Software Kit ... Part 8
Learn some of the specific reasons why this
program is called the DIY software kit.
; By John Gavlik and Martin Hebel Columns
When Additive and
Don’t Add Up
07 READER FEEDBACK
22 NEW PRODUCTS
72 NV WEBSTORE
76 TECH FORUM
79 AD INDEX