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Table of Contents
Task
Manager
Applications
You Can Use,
by Jennifer Huber
Priority
Interrupt
Connections,
by Steve Ciarcia
New
Product News,
edited by John Gorsky
—Feature
Article —
Measurement
System for Weight and Dimensions
Renesas
M16C Design Contest 2005 Winner
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Read
it now!
by John Peterson
With
John’s M16C/62P-based system, it’s quick and
easy to weigh and measure packages of various
sizes for shipment. By pressing a button,
the package’s weight and dimensions are shown
on the system’s LCD. The data is then uploaded
to your PC. p.
12
Keywords:
Shipping, weight,
dimension, scale, M16C/62P, SKP16C62P, DW-36XP,
strain gage, photocell, PWM, web, Python
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Home-Brewed
HERMS
Mark
Nesdoly
Mark
used his technical know-how to customize a heat
exchange recirculating mash system (HERMS) for brewing
beer at his house. The PIC18F452 microcontroller-based
system features PID control for reaching and maintaining
temperatures for mashing. p. 20
Keywords:
HERMS, heat exchange recirculating mash system,
beer, PIC18F452, RIMS, PID, LCD
(If you have pop-ups disabled, click
here for a password.)
Touch-N-Talk
Learning Toy
PIC16F876-Based
System for Language Acquisition
Ross Tsukashima & Ha Le Cao
Touch-N-Talk
is an interactive learning toy designed to help
children associate words with objects. When an object
is placed on a sensor pad, the system provides instant
audio feedback. p. 26
Keywords:
Interactive learning, PIC16F876, sound, capacitive
sensing, QT160, ISD1212P, PICBasic
(If you have pop-ups disabled, click
here for a password.)
Bass
Pedal Upgrade
Build
a PIC-Based Optical Pedal System
Howard Davis
After
a professional guitarist inquired about upgrading
his 30-year-old Moog Taurus II bass pedal set, Howard
set out to modernize the system. The upgraded system
enables the musician to easily change settings during
a performance. p. 32
Keywords:
Taurus II bass pedal, MIDI, PIC16F877, GP1S58V,
optical, photointerrupter, ADC
(If you have pop-ups disabled, click
here for a password.)
—Feature
Article —
Nontraditional
Cursor Control
ATmega32-Based Motion Sensing
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Read
it now!
by Andrew Sawchuk & Joseph Tanen
Andrew and Joseph’s motion-sensing glove enables you to control
the cursor on your computer screen without
the use of a mouse. Built around an ATmega32
microcontroller, the system functions as a
two-button mouse with vertical scrolling.
p.
38
Keywords:
Motion sensing,
cursor control, ATmega32, glove, accelerometer,
ADC, ADXL203, LM358P, filter
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—Sponsored
Article —
Unique
Way to Measure Temperature
A
Heating Element Turned Sensor
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Read
it now!
by Daniel
Malik
Forget
those expensive temperature sensors. Now you
can use an ordinary heating element like a
soldering iron to measure temperature. Daniel’s
upgraded soldering iron will be a great addition
to your workbench. p. 44
Keywords:
Temperature, heating element, soldering iron,
resistance, Wheatstone bridge, MC68HC908
Sponsored
by: Freescale Semiconductor
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ABOVE
THE GROUND PLANE
Stepper Failure
Death By Disconnection
Ed Nisley
Ed recently investigated why some stepper motors
were burning out. Here he explains his findings
and reviews the analog side of stepper motor electronics.
p. 50
Keywords:
Stepper motor, failure analysis, tank
circuit oscillation, arcing
(If you have pop-ups disabled, click
here for a password.)
APPLIED
PCs
Embedded
Ethernet Design
Write a Set of Ethernet IC Drivers
Fred
Eady
Don’t
start that next embedded Ethernet design until you
check out what Fred has to say about the Microchip
ENC28J60 Ethernet controller. Creating your own
set of Ethernet IC drivers will make your life a
whole lot easier. p. 54
Keywords:
Ethernet,
ENC28J60, TCP/IP, PICC-18 C compiler, SPI
(If you have pop-ups disabled, click
here for a password.)
—Feature
Article —
Earth
Field Magnetometer
Cypress
PSoC High Integration Challenge 2004 Winner
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Read
it now!
by Richard Wotiz
Richard’s
CY8C22213-based Earth Field Magnetometer measures
the strength of the Earth’s magnetic field.
The sensitive system calculates variations
in the magnetic field that result from solar
storms and aurora activity. p. 62
Keywords:
Magnetometer, CY8C22213,
flux density, Helmholtz coil, fluxgate, ADC,
LCD
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FROM
THE BENCH
Can You Speak CAN? (Part 1)
The Newest CAN Modules
Jeff Bachiochi
In this two-part article, Jeff introduces you to
some of the newest CAN modules on the market. Get
ready to begin your own CAN-based system. p.
72
Keywords:
CAN,
ISO11898, transceiver, MCP2515, bit stuffing
(If you have pop-ups disabled, click
here for a password.)
SILICON
UPDATE
Three-Axis Foursome
Tom Cantrell
Tom’s been covering microelectromechanical system
(MEMS) accelerometer technology for more than 10
years. This month he describes the newest batch
to hit the street. p. 78
Keywords:
MEMS,
accelerometer, ADXL330, MMA7260Q, H34C, LIS3L06AL,
noise
(If you have pop-ups disabled, click
here for a password.)
Crossword
Index of Advertisers
PREVIEW
July #192
Data
Acquisition
Wireless
Data Transfer: Get Started with the Bluetooth
Serial Port
Compact
Spectrum Analyzer
Tiny AVR Serial Port Programmer
Dual-Axis Level Sensor
Network-Enable Legacy Equipment
Precision
Motion-Sensing System Analyzer
Weather Station Upgrade
APPLIED PCs Wireless
Network Analysis: Sniff Around a ZigBee PAN with ZENA
FROM THE BENCH
Can You Speak CAN? (Part 2): A Look at CANopen
SILICON UPDATE Device
Surfer
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