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Using
the PSoC to Drive the NKK Smartswitch
By
Aubrey Kagan
Canada
akagan@weidmuller.ca
The
NKK Smartswitch is a single-pole, normally open push-button
switch with an LCD screen mounted in the button head.
The LCD is configured in the form of a 36 × 24 pixel
dot matrix with both red and green LED backlighting. The
versatility of PSoC allows for simple graphics and text
presentation.
Abstract
| Published
Article
Laser
Diode Controller
By
Seenath Punnakal
U.S.
seenat@hotmail.com
This
project is a laser diode controller module. Because PSoC
contains a high level of integration, it saves about $20
to $30 from the cost of a typical hand-held laser source.
A complete laser controller can be built using just the
analog functions of a PSoC controller. Functions like
modulation are done in software.
Abstract
| Full entry & software
(254k)
Blood
Pressure Recorder
By
Dave Goodrich
U.S.
dbg@ieee.org
The
circuit uses a pressure sensor to read and display the
pressure in a blood pressure cuff and record systolic
and diastolic pressures. The design uses one 8-pin DIP
PSoC to replace an original design that used a microprocessor,
EPROM, A/D converter, op-amp filters and amplifiers, and
glue logic. A 4 × 20 serial LCD interfaces with
the user.
Abstract
| Full entry & software
(266k)
Variable
Color Street Number Sign
By
Aubrey Kagan
Canada
akagan@weidmuller.ca
This
project uses a single 8-pin PSoC to create a street number
sign that changes from red to green through shades of
orange and back again. It's an ideal example of PWM lighting
control. The proportion of one color to the other affects
the shade of color seen.
Abstract
| Full entry & software
(1.4M)
Programmable
Signal Generator
By
Seenath Punnakal
U.S.
seenat@hotmail.com
This
project is a serial-input, bench-top programmable signal
generator. Using timer interrupts, it generates sine,
square, or triangular waves within a wide frequency range
on command.
Abstract
| Full entry & software
(381k)
Reconfigurable
Automated Test System
By
Lindsay Meek
Australia
lindsaymeek@hotmail.com
This
project describes an automated test system that consists
of a string of test pod units, each with a PSoC controller.
These test pods are daisy-chained together in a bus arrangement
to create enough analog and digital I/O to exercise a
device-under-test. Using a PC, the test pods interpret
a test-vector scripting language, which dynamically reconfigures
the PSoC I/O pins on each pod as either digital input,
strong digital output, pulled-up digital output, pulled-down
digital output, analog output, or analog input.
Abstract
| Full entry & software
(815k)
Bar
Code Reading Attendance Register System
By Tejinder Singh
India
tejinder_marwah@hotmail.com
This
project is meant to revolutionize attendance recording.
Each student or employee is assigned a card with an enrollment
ID number stored as a bar code. As students or employees
enter a room they swipe the card in a reader. This information
along with a time stamp is stored in EEPROM. Periodically
the system is connected to a PC to download the data from
EEPROM and update the attendance database.
Abstract
| Full entry & software
(1.3M)
Milling
Machine Robust Digital Readout
By
Scott Nortman and Scott Kanowitz
U.S.
scott.nortman@rcn.com
This
project outlines the development of a four-axis digital
readout for a milling machine. It uses SPI-connected quadrature
decoders along with a touch-input LCD connected to a PSoC
to make a robust machine display interface.
Abstract
| Full entry & software
(2.3M)
Lock-In
Amplifier
By
Seenath Punnakal
U.S.
seenat@hotmail.com
A
lock-in amplifier provides a DC output directly proportional
to the AC signal being measured. By low-pass filtering
the DC and combining it with a reference signal of the
same frequency, you can easily track the changes in frequency
of a signal being measured.
Abstract
| Full entry & software
(243k)
Programmable
Logic Controller
By
Indranil Majumdar
India
fox1@vsnl.com
This
project uses a PSoC to create a low-cost, limited-function
programmable logic controller (PLC) for industrial applications.
In this case, the designer sendsserial commands to the
PLC to remotely control and operate a butterfly valve
in a pipeline installation.
Abstract
| Full entry & software
(1M)
Multifunction
Modules
By
Peter Slodowy
Australia
pslodowy@ozemail.com.au
This
project deals with configuration and programming of a
PSoC as independent I2C functional
modules for application circuits. The functional modules
are of different hardware/software complexity. Included
in this project are: a dual quadrature decoder; quadruple
12-bit ADC with adjustable input sensitivity; and a triple
8-bit DAC with voltage output.
Abstract
| Full entry & software
(475k)
Educating
Mario
By
David Nathan
Switzerland
dnathan@captigate.com
This
project demonstrates how the marriage of a PSoC and the
Nintendo Game Boy Advance (GBA) can open up exciting possibilities
for the classroom and the science lab. GBA is an inexpensive,
pocket-size device with a color screen and 256 KB of internal
RAM for downloaded programs. A simple command interpreter
was also incorporated into the PSoC flash memory; it permits
PSoC functions to be exercised using a simple terminal
software program.
Abstract
| Full entry & software
(1M)
PSoC
USB Interface
By
Seenath Punnakal
U.S.
seenat@hotmail.com
PSoC
devices do not have USB interfaces. This project details
the connection of a USB chip and the software necessary
to provide one.
Abstract
| Full entry & software
(90k)
Poor
Man’s Oscilloscope
By
Elden Crom
U.S.
ecrom@qwest.net
This
project is an oscilloscope, implemented in a single PSoC
with a couple transistors and an RS-232 dumb-terminal
(or hyperterminal on a PC). The current implementation
has variable gain, history length, sample rate and trigger
point. Currently, the maximum sample rate is 8K sample/second
and the transmission is set to 9600 bps.
Abstract
| Full entry & software
(242k)
Santa’s
Shop
By
Michael Rigsby
U.S.
mrigsby@pipeline.com
Santa's
Shop is an interactive display where Santa's mechanical
arm assembles a Christmas tree on command. Santa's mechanical
arm, a Lynxmotion five-axis arm kit, is composed of six
servomotors controlled by a mini serial servo controller
connected to a PSoC. A series of serial commands determine
the position and path of the arm.
Abstract
| Full entry & software
(476k)
GPS
Track Helper
By
Fabiano Horn
Brazil
fhorn@bewnet.com.br
This
project is a GPS locator with a twist. The system has
both a dot matrix display and an audible speech chip connected
to a PSoC. The system either displays a location code
and announces the name of the present place or displays
the direction to the next destination along with audible
prompts to get there.
Abstract
| Full entry & software
(603k)
POCSAG
Paging Protocol Decoder
By
Mikhail Galeev
U.S.
mgaleev@core.com
POCSAG
is a standard paging protocol commonly used for wireless
data transmission. It utilizes two-level FSK modulation
with NRZ data coding. It transmits binary data at a rate
of 512, 1200, or 2400 bps. The decoder design is
intended to be used as an interface between the receiver
and a PC. Analog output of the receiver discriminator
is used as input for the decoder. It automatically selects
the receiving data rate and performs protocol synchronization.
Decoded data packets are sent to a PC via an RS-232 interface
at 9600 bps.
Abstract
| Full entry & software
(438k)
Localized
GPS Tracker
By
G.K.Siddhartha, Puneet Nayyar and Ajit Singh
India
gksiddhartha@hotmail.com
This
GPS tracking device uses bidirectional communication between
the server and client. The unique protocol allows the
whole system to function on a single frequency using time
division polling/multiplexing for data exchange. Designed
specifically for use at a university, the server maintains
a position map for each client. The tracking information
is displayed as a visual map of the campus and any client
can get the information about the position of any other
client by requesting it from the server.
Abstract
| Full entry & software
(1.6M)
P(eek)SoC
By
Chris Paiano
U.S.
chris@chrispaiano.com
This
device is a PSoC debugger that uses a standard Palm-based
hand-held display device. It uses an infrared LED to send
bursts of data containing the readings of the four multiplexed
analog input signals via IrDA. They are decoded by Microsoft
Visual Basic routines, specifically written with the Appforge
add-on program to PalmOS hand-helds, and then displayed
on any Palm.
Abstract
| Full entry & software
(1.2M)
Embedded
Controller Core
By
Goran Panjkovic
Australia
goran@silchip.com.au
This
design demonstrates how a PSoC can be used to build a
versatile embedded controller with a minimum count of
external hardware components and by employing a very basic
knowledge of assembly language. Actually, the only essential
external components are: an output buffer, small size
5-V relays, switches/buttons, and connectors. The control
code is written in assembly language and organized as
a template that can be easily tailored for many practical
applications, such as process control, home automation,
security alarms, and vending machines.
Abstract
| Full entry & software
(257k)
MagicBox
Model Airplane Controller
By
Gordon Anderson
U.S.
GAA@OWT.com
MagicBox
is an accessory designed for the model airplane enthusiast.
MagicBox connects between the aircraft receiver and the
control servos, and automatically directs a number of
flight functions. Each function has adjustable parameters
and options that are custom designed for the specific
mode.
Abstract
| Full entry & software
(7M)
Big
Ben Strikes Again
By
Dan Moss
U.S.
moss@pacifier.com
The
PSoC synthesizes a natural, mechanical chime melody of
the famous Big Ben clock in London’s Victoria Tower. All
five of the chime notes used to produce the Westminster
Chimes melody are synthesized in this manner, four notes
for the melody and one note for the striking hour. Four
8-bit PWM counters are used to generate each chime note.
The digital outputs of the four PWM counters are applied
to a resistor-summing network and a voltage-controlled
amplifier. A volume counter is applied to each chime note.
Abstract
| Full entry & software
(141k)
Remote-I/O
Provides A Flexible Interface to Sensing and Actuation
By
Thomas Kohan
U.S.
kohan@nccw.net
Sensing
and actuation are key elements in embedded machine control.
In an industrial setting, large manufacturing machines
require sensors and actuators distributed over large physical
spaces. Discrete wiring to each of these devices can be
cumbersome and error prone. An alternative solution is
an interface for sensors and actuators that can be daisy-chained
around the machine. Each Remote-I/O device consists of
a multipurpose, multi-point input/output node where each
control pin can be configured as either a digital input,
digital output, ADC input, DAC output, digital input event
counter, a timed-on digital output, or PWM output.
Abstract
| Full entry & software (298k)
PSoC485
By
Ray Walker
Canada
rswalker@quik.com
This
project is a basic RS-232/485 multi-drop data acquisition
and control system. It uses a PC as the master station
and a PSoC chip for remote station operation. There are
up to four remotes with the following capabilities: two
ADC and four digital inputs; two DAC (6 bit) and four
digital outputs; two-position jumper-selectable ID (0-3);
chip-selected LED; Tx/Rx UART 2400 bps, 8 data bits, one
stop bit, parity enabled; and 5-V operation.
Abstract
| Full entry & software
(166k)
OCU-ESC:
Electronic Speed Controller for an R/C Car
By
Virachat Boondharigaputra
Thailand
vcb73@yahoo.com
The
favorite R/C model is the electric car that can easily
have top speeds over 40 mph. In the old days, throttle
control was done with a servo-controlled mechanical switch
or variable wire-wound resistor. These techniques have
limited resolution and high power loss. Today, most cars
use a solid-state controller (ESC) with pulse width modulated
speed control. The power lost is very little and the throttle
response is significantly improved. The OCU-ESC is an
ESC with one important feature added: an anti-lock braking
system. The ABS senses speed with an optical sensor and
adjusts the wheel brake accordingly.
Abstract
| Full entry & software
(7M)
All
Purpose Tester
By
Andrew McDowell
U.S.
andjoely@aol.com
This
device has a rather interesting program structure; it
has a different configuration for all of the types of
test equipment that it implements. This use of dynamic
configuration is very effective because it allows there
to be very little external hardware. The program uses
complicated algorithms for many different functions such
as 24 × 24 bit multiplication, 16 × 16 bit
multiplication, 16-bit binary-to-BCD conversion, and 32-bit
binary-to-BCD conversion.
Abstract
| Full entry & software
(397k)
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