OSCAR NOUGHTS & CROSSES MACHINE VERSATILE 4-INPUT MIXER SUPER ACCURATE ...

74 Pages·2009·15.59 MB·English

SUPER ACCURATE GPS-BASED
FREQUENCY REFERENCE
Uses the GPS ‘atomic clocks’
to generate accurate 10MHz
and 1MHz signals
VERSATILE
4-INPUT MIXER
With tone controls and a
built-in headphone amp
OSCAR
NOUGHTS & CROSSES
MACHINE
Plus RECYCLE IT !
$8.75 US $10.25 CAN
A highly sensitive vibration sensor APRIL 2009 PRINTED IN THE UK
for next to nothing
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 PROJECTS  THEORY 
 NEWS  COMMENT 
INCORPORATING ELECTRONICS TODAY INTERNATIONAL
 POPULAR FEATURES 
VOL. 38. No 4 April 2009 www.epemag.com
Projects and Circuits
GPS-BASED FREQUENCY REFERENCE by Jim Rowe 10
Super-accurate 10MHz and 1MHz signals for calibration purposes
OSCAR NOUGHTS & CROSSES MACHINE by Brian Healy 22
Modern reincarnation of a 1960s electronic game
VERSATILE 4-INPUT MIXER by Jim Rowe 28
Low cost, low noise for a wide range of signal sources
INGENUITY UNLIMITED Sharing your ideas with others 46
Wind-Water Speed Indicator; Alternators As Servos
BREADBOARDING PROJECTS by Dr Malcolm Plant 48
Part 7 – Ultrasonic Remote Control – Transmitter and Receiver
Series and Features
TECHNO TALK by Mark Nelson 20
Light In The Gloom
RECYCLE IT by Julian Edgar 42
A vibration sensor for a few pounds
INTERFACE by Robert Penfold 44
Using handshake outputs as power sources
CIRCUIT SURGERY by Ian Bell 54
Selecting op amps
PIC N’ MIX by Mike Hibbett 60
Video from a PIC
NET WORK by Alan Winstanley 66
When broadband goes off the rails
Regulars and Services
EDITORIAL 7
NEWS – Barry Fox highlights technology’s leading edge 8
Plus everyday news from the world of electronics
SUBSCRIBE TO EPE and save money 21
PIC PROJECTS CD-ROM 52
A plethora of handPICed projects
PIC RESOURCES CD-ROM 53
EPE PIC Tutorial V2, plus PIC Toolkit Mk3 and a selection of PIC-related articles
BACK ISSUES Did you miss these? 58
CD-ROMS FOR ELECTRONICS 62
A wide range of CD-ROMs for hobbyists, students and engineers
READOUT Matt Pulzer addresses general points arising 65
DIRECT BOOK SERVICE 67
A wide range of technical books available by mail order, plus more CD-ROMs
© Wimborne Publishing Ltd 2009. Copyright in all EPE PCB SERVICE 70
drawings, photographs and articles published in ADVERTISERS INDEX 72
EVERYDAY PRACTICAL ELECTRONICS is fully
protected, and reproduction or imitations in whole or
in part are expressly forbidden.
Our May 2009 issue will be published on Readers’ Services • Editorial and Advertisement Departments 7
Thursday 9 April 2009, see page 72 for details.
Everyday Practical Electronics, April 2009 1
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 
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 

 

 
  
  

 


  

 
  
  
  
  
 
 
  
 

 

 

 

  
  
  
  

 

 

 

 

 

 

 

 

 

 

 
  
  
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 

 

 

 

 

 

 

 

 

 

 

  
 
  
  
 
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 






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
  
 
 
 
 
  
  
 
  
  
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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EPE April 16-2 1.20PM 16/2/09 1:47 PM Page 1
Everyday Practical Electronics Magazine has been publishing a series
of popular kits by the acclaimed Silicon Chip Magazine Australia. These
projects are 'bullet proof' and already tested down under. All Jaycar kits are
supplied with specified board components, quality fibreglass tinned PCBs and
April ‘09 have clear English instructions. Watch this space for future featured kits.
LED WATER LEVEL STARSHIP ENTERPRISE DOOR
INDICATOR MKII KIT SOUND EMULATOR KIT
KC-5449 £10.25plus postage & packing KC-5423 £11.75plus postage & packing
This simple circuit illuminates a string of LEDs to quickly This easy to build kit emulates the unique noise made when the cabin doors on the Starship
indicate the water level in a rainwater tank. The more LEDs that Enterprise open & close. The 'shut' noise is also duplicated. The sound emulator can be triggered
illuminate, the higher the water level is inside the tank. The by switch contacts (normally open) which means you can use a reed magnet switch, IR beam or
input signal is provided by ten PIR detector to trigger the unit.
sensors located in the water tank • Kit includes PCB with overlay, case & all electronic components with clear English instructions.
and connected to the indicator • Requires 9-12VDC power
unit via-light duty figure-8 cable. * As published in EPE Magazine June 2008
• Kit supplied with PCB with
overlay, machined case with
LUXEON STAR LED VOLTAGE
screenprinted lid and all electronic
components. DRIVER KIT MONITOR KIT
* As published in EPE Magazine March 2009
KC-5389 £9.75plus postage & packing
Luxeon high power LEDs are some of the brightest LEDs KC-5424 £6.00plus
MINI THEREMIN available in the world. They offer up to 120 lumens per unit, postage & packing
SYNTHESISER MKII KIT and will last up to 100,000 hours! This kit allows This versatile kit will allow you to
you to power the fantastic 1W, 3W, and monitor the battery voltage, the airflow meter
KC-5426 £43.50plus
5W Luxeon Star LEDs from 12VDC. or oxygen sensor in your car. The kit features a 10
postage & packing
This means that you can LED bar graph that lights the LEDS in response to the
By moving your hand
take advantage of measured voltage, preset 9-16V, 0.-5V or 0-1V ranges
between the metal antennas,
what these complete with a fast response time, high input impedance &
create unusual sound
fantastic LEDs auto dimming for night time driving.
effects! The Theremin MkII
have to offer, and use
improves on its predecessor by
them in your car, boat, • Kit includes PCB with overlay, LED bar graph &
allowing adjustments to be made to
or caravan. all electronic components.
the tonal quality and features better waveform.
• Requires 12VDC power
With a multitude of controls this instrument's
• Kit supplied with PCB, and all electronic components. • Recommended box: UB5 HB-6015
musical potential is only limited by the skill of its player.
* As published in EPE Magazine April 2007 * As published in EPE Magazine June 2008
• Kit includes stand, PCB with overlay, machined case with
silkscreen printed lid, loud speaker, pitch and volume
RADAR SPEED
antennas & all specified electronic components. SMART CARD READER GUN MKII KIT
* As published in EPE Magazine May/June 2008
PROGRAMMER KIT
KC-5441 £29.00plus postage
KC-5361 £15.95plus P&P & packing
GALACTIC
Program both the microcontroller and If you're into any kind of racing like cars,
VOICE KIT EEPROM in the popular gold, silver & bikes boats or even the horses, this kit is
emerald wafer cards. Card used needs to for you. The electronics are mounted in
KC-5431 £13.25plus postage & packing conform to ISO-7816 standards, which the supplied jiffy box and the radar gun
Effect and depth controls allow you to vary the voice to includes ones sold by Jaycar. Powered by assembly can be made simply with two
simulate everything from C-3PO to 9-12 VDC wall adaptor or a 9V battery. coffee tins fitted end to end. The circuit needs 12VDC at only
the hysterical ranting of Daleks. Instructions outline software requirements 130mA so you can use a small SLA or rechargeable
that are freely available on the internet. battery pack.
• Kit includes PCB with overlay,
enclosure, speaker and all • Kit supplied with PCB, wafer card socket & all electronic • Kit includes PCB
components. components. PCB measures: 141 x 101mm and all specified
* As published in EPE * As published in EPE Magazine May 2006 electronic
Magazine August 2008 components.
COURTESY INTERIOR
AC/DC CURRENT CLAMP LIGHT DELAY KIT
METER KIT FOR DMM'S
KC-5392 £5.95plus postage & packing
* As published in EPE Magazine December 2008
KC-5368 £8.75plus postage & packing Many modern cars feature a time delay on the interior light.
It uses a simple hall effect sensor It still allows you time to buckle up and get organised before
& iron ring core set up, & the light dims and finally goes out. This kit provides that • Secure on-line ordering
connects to your digital feature for cars which don't already provide it. It has a soft • ALL prices in Pounds Sterling
multimeter. It will measure AC & fade out after a set time has elapsed, and features much • Minimum order ONLY £10
DC current & has a calibration simpler universal wiring than previous models
dial to allow for any we have had.
magnetising of the ORDER YOUR
core. Much • Kit supplied with PCB FREE
cheaper than pre-built units. with overlay, and all
CATALOGUE
electronic components.
• Kit supplied with PCB, clamp, case with silk screened front • Suitable for circuits switching ground or TODAY!
panel & all electronic components. +12V or 24VDC (car & truck with negative chassis.)
* As published in EPE Magazine June 2006 * As published in EPE Magazine February 2007
0800 032 7241 jaycarelectronics.co.uk
EPE April 16-2 1.20PM 16/2/09 1:48 PM Page 2
HAND DIGITAL FUEL ECONOMY ADJUSTABLE
CONTROLLER KIT ADJUSTER KIT TEMPERATURE SWITCH KIT
KC-5386 £25.95+ post & packing KC-5381 £9.75plus postage & packing
KC-5385£25.95+
This LCD post & packing It has an adjustable switching
hand controller temperature (up to 245°C)
This unit gives you complete control of the air/fuel
is required during and can be configured to
ratio at 128 points across the entire engine load range and
the initial setting-up trigger on rising or falling
provides incredible mapping resolution and brilliant drivability. It
procedure. It plugs temperature. Useful for
uses the Handheld Digital Controller - KC-5386 (available
into the main unit running cooling fans
separately) so there is no need for a laptop. Supports both
and can be used while the engine or over-temp warning
static and real-time mapping.
is either running or stopped. Using this Hand Controller, you lights or alarms, etc.
can set all the initial parameters and also program the
• Kit supplied with a quality solder masked PCB with overlay,
ignition advance/retard curve. • Kit supplied with PCB, NTC Thermistor,
machined case with processed panels, programmed micro
and all electronic components.
and all electronic components.
• Kit supplied with silk screened and machined case, PCB,
LCD, and all electronic components.
FUEL MIXTURE DISPLAY KIT
FREQUENCY FOR FUEL INJECTED CAR
UNIVERSAL VOLTAGE SWITCH KIT
SWITCH KIT KC-5378 £11.75plus KC-5374 £8.95plus postage & packing
postage & packing This kit features auto dimming for night driving, emergency
KC-5377 £9.95 This is a great module which can be adapted to suit a lean-out alarm, and better circuit protection. Another great
plus postage & range of different applications. feature is the ‘dancing’ display, which operates when the ECU
packing It uses a standard tacho, is operating in closed loop.
road speed, or many
This is a
universal other pulse outputs to • Kit supplied with PCB
module which can be switch a relay. The and all electronic
adapted to suit a range of different switch frequency can be set to components.
applications. It will trip a relay when a preset voltage is trip when it is rising or falling, and it features • Car must be fitted with
reached. It can be configured to trip with a rising or falling adjustable hysteresis (the difference between trigger on/off airflow and EGO sensors (standard on
voltage, so it is suitable for a wide variety of voltage frequency). You could configure it to trigger water spray cooling all EFI systems) for full functionality.
on deceleration, shift light activation, adjustable aerodynamics
outputting devices eg., throttle position sensor, air flow
based on speed, intake manifold switching and much more.
sensor, EGO sensor. It also features adjustable hysteresis (the
difference between trigger on/off voltage), making it
extremely versatile. You could use it to trigger an extra fuel • Kit supplied with PCB, and all electronic components. ELECTRONIC PROJECTS
pump under high boost, anti-lag wastegate shutoff, FOR CARS VOL. II
and much more.
IMPROVED TACHOMETER BS-5075 £4.75plus postage & packing
• Kit supplied with PCB, & all electronic components. KIT FOR CARS This informative magazine contains
a collection of 17 electronic projects
KC-5290 £19.95plus postage & packing for cars from Silicon Chip Magazines.
CAR BATTERY Unlike its’ bulky predecessor from August 1991,
MONITOR KIT this PIC based tachometer The interesting articles and
is housed neatly in a small projects include:
jiffy box (83 x 54 x • Ignition projects
KA-1683 £5.50plus postage & packing
31mm), which mounts • PIC-based projects
Don’t get caught with a flat battery! This simple electronic nicely on your dashboard. • Alarms & Engine monitors
voltmeter lets you monitor the condition of your car’s battery It’s amazing features • Limiters and Immobilisers
so you can act before getting stranded. 10 rectangular LEDs include 4-digit LED display • Miscellaneous projects.
tell you your battery’s condition. showing up to 9,900rpm • 128 pages.
in 100rpm increments, 10
• Kit includes PC board LED bargraph with optional dot or bar mode (showing 8-
and all components. independent rpm thresholds), calibration options for 1- 12 FREE CATALOGUE
cylinder 4-stroke or 1- 6 cylinder 2-stroke engines, anti-
display flickering feature and automatic night-time display
dimming, to perform engine limiting. Checkout Jaycar’s
• Kit includes case with silk-screened panel, PCBs, pre- extensive range
programmed PIC micro, 7-segment displays, red acrylic,
hook-up wire and all electronic components. We have kits & electronic
projects for use in:
• Audio & Video
POST & PACKING CHARGES HOW TO ORDER • Car & Automotive
• Computer • Lighting
Order Value Cost •ORDER ON-LINE: www.jaycarelectronics.co.uk • Power • Test & Meters
£10 -£49.99 £5 Max weight 12lb (5kg). • PHONE: [phone]* • Learning & Educational
£50 -£99.99 £10 Heavier parcels POA. • FAX: [phone]* • General Electronics Projects
£100-£199.99 £20 • EMAIL: [email protected] • Gifts, Gadgets & Just for fun!
£200-£499.99 £30 Minimum order £10. • POST: P.O. Box 107, Rydalmere NSW 2116 Australia For your FREE catalogue log on to:
£500+ £40 •ALL PRICING IN POUNDS STERLING
www.jaycarelectronics.co.uk/catalogue
•MINIMUM ORDER ONLY £10
Note: Products are despatched from Australia, *Australian Eastern Standard Time (Monday - Friday or check out the range at:
so local customs duty & taxes may apply. 09.00 to 17.30 GMT + 10 hours only) www.jaycarelectronics.co.uk
Prices valid until 30/4/09
Expect 10-14 days for air parcel delivery
0800 032 7241 jaycarelectronics.co.uk
4000 Series 74HC153 £0.30 74LS266 £0.14 OP200GP £5.60 Diodes Thyristors BC208 £0.72 BFY50 £0.30 ZTX951 £0.54
4000B £0.2774HC154 £0.94 74LS273 £0.32 OP275GP £2.57 1N914 £0.05 2N5060 £0.19 BC209A £0.72 BFY51 £0.22 ZTX1048A £0.48
4001B £0.1674HC157 £0.22 74LS279 £0.24 OP282GP £2.27 1N4001 £0.04 2N5061 £0.19 BC212L £0.09 BFY52 £0.32 ZTX1051A £0.46
4002B £0.1974HC158 £0.23 74LS283 £0.47 OP283GP £5.20 1N4002 £0.05 BT151-500R £0.65 BC214 £0.11 BS107 £0.21 ZTX1053A £0.45
4006B £0.6574HC161 £0.27 74LS365 £0.21 OP290GP £4.28 1N4003 £0.03 PO102AA £0.30 BC214L £0.10 BS170 £0.15
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Everyday Practical Electronics, April 2009 7