Circuit Cellar Ink 206
September 2007

Table of Contents

4 CJ Abate	HTML Task Manager Blogs & Video
8 John Gorsky	New Product News BS100U PC-based USB mixed-signal oscilloscope from BitScope Designs LTC2246H 25-Msps, 14-bit ADC from Linear Technology Corp.
11	Reader I/O Letters to the Editor
10 Alexander Popov Jordan Popov	Smart Power An Intelligent Power Supply for Embedded Systems This "intelligent" power supply was designed specifically for testing embedded systems. In addition to its numerous useful features, the ATmega169-based power supply can provide any voltage from 0 to 5 V with 10-bit resolution. Download: Popov-206.zip
18 Dale Wheat	PIC-an-LCD A Character-Based Serial LCD Controller Dale describes his useful PIC-an-LCD device, which is a character-based serial LCD controller. Based on a Microchip Technology PIC16C621, the LCD controller chip is programmed in C language and works with most alphanumeric LCD modules. It accepts normal or inverted serial data and connects to either TTL or RS-232-level signals with a single resistor. Download: Wheat-206.zip
26 Daniel Ramirez	High-Performance Motor Controller With a USB interface, Daniel can issue high-level commands to his motor controller from his laptop. This enables his laptop to process algorithms while an embedded controller handles the rest of the work. Motor control has never been easier. Download: Ramirez-206.zip
42 Steve Hendrix	1-Wire in the Real World Part 2: The Solutions Steve continues explaining how he turned a laboratory prototype into an electrically powered ice protection system for aircraft. He describes how he built a 1-Wire master and then covers some of the application structures that take full advantage of the 1-Wire bus. Download: Hendrix-206.zip
52 Aubrey Kagan	Resilience in Embedded Designs Part 1: Power Supply, Inputs, and Ground In this series of articles, Aubrey describes techniques for minimizing the chances of problems occurring during the embedded design process. He also outlines the major causes of system failure, such as power supply noise and electromagnetic interference. Download: Kagan-206.zip
58 Stuart Ball	Pulse Generation Encoder Interfacing to Microcontrollers Try a continuous rotary knob in your next design instead of keypads or buttons. With an optical encoder and an ATmega8515 microcontroller, a digital output is produced in Stuart's system. Download: Ball-206.zip
62 Thiadmer Riemersma	Embedded Scripting With the Pawn scripting language, less is more. As Thiadmer explains, the language requires so little from its embedded host system that it can be added to an NXP LPC2106 microcontroller with few resources. Now you can extend your firmware without changing it. Download: Riemersma-206.zip
Lessons from the Trenches 70 George Martin	String Theory George explores how C language supports strings. He wrote a program using C that runs on a PC and converts an input file containing PCB assembly information into a file that can be used by a Philips pick-and-place machine. Download: Martin-206.zip
From the Bench 74 Jeff Bachiochi	I-Zip Dashboard Jeff applies what you learned last month to design a display for his electric bicycle. The system uses a LIN bus to present real-time information about your driving habits and fuel efficiency. The system displays information such as voltage, current, slope, distance, and speed data. Download: Bachiochi-206.zip
Silicon Update 80 Tom Cantrell	Game On When the coding gets tough, the tough get coding. And the rest of us should be glad they do. Recently, Tom turned to game expert Andre LaMothe to see how to teach new-school hardware some old-school programming tricks. Are you game?
93	Crossword Puzzle
94	Advertiser's Index / October Preview
96 Steve Ciarcia	HTML Priority Interrupt Chronic Subscription Overdose

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