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Table of Contents
Task
Manager
Redesigned
to Impress,
by Jennifer Huber
Priority
Interrupt
The
Collegiate Challenge,
by Steve Ciarcia
New
Product News,
edited by John Gorsky
Supervisory
Control and Data Acquisition
Charlie Krauter
Charlie
recently built a data acquisition system that he
now uses when experimenting with liquid piston steam
engines. The system includes a CAN bus-to-Ethernet
bridging device and a CAN-based thermocouple interface
node. p. 12
Keywords:
Data acquisition, control, CAN, Ethernet, thermocouple,
RCM3700, SJA1000, MCP2551, ATmega8, MCP2510, AD595,
ADG507A, AD7818
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here for a password.)
E-Field
Serial Touchpad
Erwin
Saavedra
Want
to get rid of that mouse? Erwin’s MC33794-based
E-Field Serial Touchpad is the solution you’re looking
for. The pad connects to your PC’s serial port.
Simply drag your fingertip across the aluminum pad
and tap gently to initiate a command. p. 26
Keywords:
E-Field, touchpad, MC33794, MC68HC908, serial
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here for a password.)
Pseudo-Random
Noise Theory and Applications
Shlomo
Engelberg and Haim Benjamin
Shlomo
and Haim’s ADuC812-based noise generation system
produces noise on demand. Read on to learn how you
can use pseudo-random sequences for measurement
purposes. p. 32
Keywords:
Pseudo-random noise, ADuC812, sequence, LCD,
keypad
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here for a password.)
ABOVE
THE GROUND PLANE
Stepper
Drive (Part 2):
Digital
Ed
Nisley
In Ed’s last column, he described how he reworked
the stepper circuitry in his Sherline CNC mill controller
to run a bit quieter. This month, he goes into more
detail about PWM current regulation. He also describes
how his modifications have affected the waveforms.
p. 36
Keywords:
Stepper
motor, PWM, mill, controller, SLA7044, noise, PIC16F627
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here for a password.)
APPLIED
PCs
Big
PICs
Fred
Eady
The newest members the PIC18Fxxxx family
are high-pin-count devices that boast up to 128
KB of program flash memory, more than 3 KB of data
memory, and 1 KB of EEPROM. Fred explains how he
built an embedded Bluetooth radio as he experimented
with a few PIC microcontrollers and the Promi-ESD-02
Bluetooth module. p. 40
Keywords:
PIC18Fxxxx,
high pin count, memory, I/O, EUSART, Bluetooth,
Promi-ESD-02
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here for a password.)
FROM
THE BENCH
Digital
Radio Control
Jeff
Bachiochi
When it comes to building R/C systems, digital control
is the way to go. In this article, you’ll learn
how to retrofit your R/C vehicle with a simple digital
system. With Jeff’s help, you can animate an R/C
airplane with retractable landing gear and controllable
lights. p. 48
Keywords:
Radio control, R/C, servo, timing pulse, channels,
animatronics, digital control, M51660L, PIC16873
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here for a password.)
Single-Board
Logic Analyzer
Larry
Cicchinelli
Larry’s eight-channel, single-board logic analyzer
can connect to any parallel port on your PC. It’s
a great tool to have on hand if you work with complex
digital circuits. Read on to learn more about this
small, inexpensive design. p. 54
Keywords:
Logic Analyzer, parallel port, PC, PLD, ATF1508AS,
address generator, timebase, trigger control, CY7C109B
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here for a password.)
Intelligent
Sensor Head
Andrew
Smallridge
Andrew redesigned the temperature sensor conditioning
and acquisition subsystem of a Bowen ratio data
acquisition system. He used intelligent sensor heads
connected via a digital communication bus to a centralized
logging unit. p. 60
Keywords:
Temperature, sensor, conditioning, acquisition,
Bowen ratio, MAX1463, RTD, PIC18F252, calibration,
bootloader
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here for a password.)
SILICON
UPDATE
Try Hard with a Vengeance
Tom Cantrell
Altera and Xilinx are fighting for the largest share
of the programmable logic market. This month, Tom
brings you up to speed on this protracted game of
tit-for-tat. Read on to learn about the newest parts
Altera has brought into the fray. p. 70
Keywords:
Programmable
logic, PAL, FPGA, MAX II, CPLD, flash memory, Cyclone
II, EP2S180, LUT, Cubic Cyclonium
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here for a password.)
—Feature
Article —
Telephone
Message Watchdog
An Intelligent Call-Forwarding System
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Read
it now!
by Jingxi Zhang, Yang Zhang, and Huifang
Ni
The Telephone Message
Watchdog is an H8S/2398-based message-forwarding
system for home telephones. The touch-tone
detection system triggers when your answering
machine picks up a call. After the caller
hangs up, the system contacts you on your
cell phone or pager. p. 76
Keywords:
Telephone, answering
machine, message forwarding, H8S/2398, ADC,
isolation, DTMF
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Test
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PREVIEW
November #172
Internet
&Connectivity
Simple Four-Channel Network Video Server
Wi-Fi Sunlogger
Network
Security for Small Systems
Interface Ethernet and Embedded Systems
Math Coprocessor for Robotics Applications
Build a VGA Monitor Controller
APPLIED PCs TCP/IP Stack
Solution: A Detailed Look at the CMX-MicroNet
FROM THE BENCH
USB DMX
SILICON UPDATE Easy
to be Soft
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