Projects & Features
30 Build This Indoor Shooting Range
Now you can do target practice in the privacy of your
home using photon bullets with your own hand gun.
■ By Ron Newton
38 Build a Jumbo LED Digital
Although the original usage for this device was for a
fish tank, home beer brewers, hydroponic gardeners,
amateur weather watchers, or folks interested in
energy management will appreciate the easy-to-read
■ By David Williams
42 Reading and Writing an EEPROM
Using the Arduino
When faced with a dilemma of unavailable
programmed replacement chips and the prohibitively
expensive cost of a commercial programmer, the
Arduino platform came to the rescue.
■ By Ron Hildreth
47 Experiments with
Fuel Cell Basics.
■ By John Gavlik
10 TechKnowledgey 2010
Events, Advances, and News
Topics covered include
Maxwell’s demon is
night vision, new
’scopes are introduced,
butterflies are not free,
plus some other stuff
you’ll find interesting.
14 The Spin Zone
Adventures in Propeller Programming
Spinning up fun with encoders.
Reader Questions Answered Here
Christmas tree lights, clock oscillator
schematic, noisy audio, plus more.
54 The Design Cycle
Advanced Techniques for Design Engineers
Shuffling the Microchip TCP/IP Stack.
67 Near Space
Testing the complete
Nearsys Sun Sensor.
Programming • Hardware • Projects
Busy as a BeAVR.
Fundamentals For Beginners
Just getting started in electronics? Try these
simple demos to illustrate electronics principles
and how components function in actual circuits!
26 NEW PRODUCTS
62 NV WEBSTORE
78 TECH FORUM
81 AD INDEX
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