Circuit Cellar Ink 246
January 2011

Table of Contents

4 CJ Abate	HTML Task Manager Circuit Cellar International
9 John Gorsky	HTML New Product News ADuCRF101 radio system-on-chip device from Analog Devices, Inc. SX8122 555-like low-voltage analog timer from Semtech Corp. FAB 3000 DFM design-for-manufacturing tool for PCBs from Numerical Innovations LLC LinkZero-AX integrated offline switching IC from Power Integrations Lifetime Power Energy Harvesting Development Kit for Wireless Sensors from Microchip Technology, Inc. PSX-ZDS-A near-zero power, three-digit numeric LCD module from ParasitX LLC STN1110 multiprotocol OBD-to-UART interpreter IC from OBD Solutions DFX and UFX Series of high-capacity portable memory tokens from Datakey Electronics Opal-MM-1616 PC/104 I/O module with 16 optoisolated inputs and 16 relay outputs from Diamond Systems Corp. Agilent 53200 series of RF and universal frequency counter/timers from Agilent Technologies, Inc.
15 David Tweed	HTML Test Your EQ
16 CJ Abate	HTML WIZnet iMCU 2010 Design Contest Winners The WIZnet iMCU Design Contest 2010 challenged engineers across the globe to incorporate the W7100 Internet MCU ("iMCU") in creative embedded design projects. The W7100 is an Internet MCU integrating a hardwired TCP/IP core with an 8051 processor. It makes an easy-to-implement platform for applications that require a network connection. By combining the latest hardwired TCP/IP chip with the benefits of the W5100 and 8051 MCU core, the W7100 provides a one-chip solution for all embedded Internet projects. With $15,000 in cash prizes up for grabs, the competition was fierce, with innovative projects coming in from locations such as the United States, Romania, Australia, India, and Japan. The judges' results are now final. Congratulations to the winners!
The Consummate Engineer 20 George Novacek	Surge Suppression Tips and Tools for Protecting Circuitry Electromagnetic pulses always pose a danger to circuits. You have many tools at your disposal, from tranzorbs to MOVs. The key is choosing the right part for the job and putting it in play.
24 Richard Wotiz	Bicycle ABS Brake System The Bicycle ABS Brake System controls brake force to reduce wheel skidding. The innovative design measures the force applied to a bike's brake levers, along with the speed of both wheels. If it detects skidding, it drives a pair of stepper motors that pulls back on the brake levers. Download: Wotiz-246.zip
36 Riley Kotchorek Michael R. Smith Vahid Garousi	Mobile Application Development Part 2: A Sound-Detection Algorithm In the first part of this series, you learned about a prototype used to identify medical issues related to sleep apnea. This article covers the design's current functionality and a sound-detection algorithm.
48 Don McLane	Stress-Free Probing Testing and debugging small electronic circuits can be challenging. Using the elbow and sky drop probes described in this article can make the measurement process a bit easier.
Lessons from the Trenches 52 George Martin	Big Changes in the Embedded World Part 2: Implement an RTOS and a Real SPI Before digging into your next project, take some time to study how a real-time operating system (RTOS) and SPI figure into an embedded design. Once you have a sound understanding of the basics, you'll be ready to start programming and put the RTOS to work. Download: Martin-246.zip
From the Bench 58 Jeff Bachiochi	Smart Network Access Point Whether you're networking embedded applications or distant access points in a large utility grid, you need a sound understanding of communication protocols, network development, and data transmission. This article addresses the uses of a "smart" network access point.
Silicon Update 66 Tom Cantrell	Power Tripping Energy Conservation on the Embedded Level Much of the IC-era has been about performance at any price. But lately, attention has turned to "green" and "alternative energy" products, or at least ones that don't chew through so many batteries. This month you take a power trip and learn about some easy ways to reduce, or better yet eliminate, your design's energy bill.
74	Crossword Puzzle
78	Crossword Puzzle - Answers for Issue 245
79	Advertiser's Index / February Preview
80 Steve Ciarcia	HTML Priority Interrupt Second-Life Computing

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