N&V February 2011

N&V February 2011
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Price: $6.00
Product ID : SKU17012




  • Build a Wi-Fi Sprinkler System — Part 2 by Bob Colwell
    Now that you know how the Rabbit RCM5450W module works and how to interface relays and an LCD, it’s time to set up your sprinkler system.
  • Build a Wall Wart Power Monitor by David Goodsell
    This self-contained, battery-powered unit measures both DC current and voltage. It accepts four of the most common wall wart plugs and also has four identical output plugs — ready to hook to your project.
  • Introducing the 32-bit Micro Experimenter by Tom Kibalo
    It’s here! We’re graduating from our 16-bit Experimenter so we can experience a whole new level of applications with the 32-bit version.


  • Arduino Channel Surfer & Other Diabolical Gadgets by Andy Sullivan
    With an understanding of IR codes, a wide range of devices can be built that offer new remote control capabilities.


  • Techknowledgey by Jeff Eckert
    TechKnowledgey 2011
    Read about a device that gets its juice from heat and light, a better battery management system, a major upgrade for speakerphones, disposable e-books, plus some other stuff you’ll find fascinating.
  • PICAXE Primer by Ron Hackett
    PICAXE Primer
    In this month’s installment of the Primer, we’re going to explore two different implementations of a touch-sensitive keypad.
  • Q&A by Russell Kincaid
    Reader Questions Answered Here
    This month’s questions revisit the CAT 5 cable tester and cover a 400 Hz gyro drive, analog isolation techniques, and an LED chaser circuit, just to name a few.
  • Smiley’s Workshop by Joe Pardue
    Smileys Workshop: An AVR C Programming Series (Part 31)
    avrtoolbox — Open Source and Version Control.
  • Open Communication by Louis E. Frenzel
    Open Communication
    New Versions of the 555 Timer IC.
  • Fundamentals For Beginners
    How an NPN Transistor Works
    In this experiment, we will build a simple circuit to observe an NPN transistor serving as a current amplifier.

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