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4 June 2014
08 PICAXE Primer
Sharpening Your Tools
Construct a Battery-Backed UPS for Your Pi
Protect your Pi during power outages for a fraction
of the cost of commercial uninterruptable power
18 Open Communication
The Latest in Networking and
The Internet of Things
Both of these
technologies that are
used to monitor
equipment by way of the Internet are expected to
enable billions of new devices in the coming years.
58 Smiley’s Workshop
Programming • Hardware • Projects
The Arduino Classroom.
Arduino 101/Chapter 6: Analog Input
This time, learn about inputting analog signals using
the analog-to-digital converter built into the Arduino,
plus some basic electrical concepts to help
understand what it is that’s being input.
68 The Design Cycle
Advanced Techniques for
The Dawn of a New EVE.
This is the first in a series of tutorials aimed at
enabling FTDI's new Embedded Video Engine
technology using a PIC microcontroller. Along the
way, we will use Microchip's XC32 C compiler to
code the various elements of our EVE firmware
driver. Plus, with the help of a PICkit3, we will
exercise this driver onboard a Digilent MX3 which
is based on the PIC32MX320F128H.
26 A 150 MHz RF Signal Generator
for Your Test Bench
No test bench is complete until it has an RF signal
source of some type. Here is a sweet general-purpose RF signal generator that won’t take up
much space and can be built on the cheap.
■ By Robert Reed
36 A Parametric Amplifier
Get into the swing of mechanical resonate
oscillators by constructing this simple pendulum.
■ By Richard Panosh
42 BASIC Stamp Module Tester
This easy-to-build-and-use tester will help you
quickly troubleshoot problems like bad I/O pins,
issues with RAM, and other headaches you might
be having with the Stamps you’re using in projects.
■ By Chris Savage
50 MakerPlot — The DIY Software
Kit ... Part 9
Learn all about Event Codes, which are the
instructions that make every switch, button,
and textbox control an Interface so it does what
you want it to do.
■ By John Gavlik and Martin Hebel
Can’t Get There
07 READER FEEDBACK
22 NEW PRODUCTS
74 NV WEBSTORE
78 TECH FORUM
80 AD INDEX Departments