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Contents
Vol.22, No.6; June 2009
www.siliconchip.com.au
SILICON
CHIP
Features
12 Mal’s Electric Vehicle Conversion
At last, a fair-dinkum electric vehicle conversion using a 3-phase induction
motor. And it’s fully road-registered – by Leo Simpson
58 Digital Radio Is Coming, Pt.4
Final article in the series describes the signal formats, compares DAB+ and
DRM and looks at suitable antennas for DAB+ reception – by Alan Hughes
84 VoiceMe: A Voice-Activated Remote Control
High-Current, High Voltage Smart
Battery Capacity Meter – Page 20.
Don’t reach for the remote; just speak and it will obey. It can control up to 10
functions on your TV, DVD player or whatever – by Rick Walters
91 Tech Support: The View From The Other Side
How the major companies handle enquiries – by Barrie Smith
Pro jects To Build
20 High-Current, High-Voltage Battery Capacity Meter
Microcontroller-based device monitors the charge and discharge of lead-acid,
Nicad & NiMH batteries at voltages from 9-60V and currents up to 80A. It can
even log the data for later download to a PC – by Mauro Grassi
36 GPS Driver Module For The 6-Digit Clock, Pt.2
Easy-to-build unit uses the GlobalSat EM-408 GPS module and drives the
6-Digit Display Module to form a complete, dead-accurate clock – by Jim Rowe
GPS Driver Module For The
6-Digit Clock – Page 36.
Build A Beam-Break
Flash Trigger – Page
62.
62 Build A Beam-Break Flash Trigger
It mates with the Time Delay Photoflash Trigger described last month and
triggers it when an object breaks a beam of infrared light – by Jim Rowe
68 Hand-Held Digital Audio Oscillator
Compact unit features a blue backlit LCD and generates sine, square, triangle
& sawtooth waveforms from 10Hz-30kHz – by Darian Lovett & Mauro Grassi
76 PICAXE Humidity Measuring Using The HopeRF HH10D
HopeRF’s tiny HH10D module is a well-priced and calibrated humidity sensor
that’s easy to interface to a PICAXE micro – by Stan Swan
Hand-Held Digital
Audio Oscillator –
Page 68.
Special Columns
30 Circuit Notebook
(1) One-In-Five Timer; (2) External USB Supply For iPOD Touch; (3) Remote
Control Extender For Foxtel; (4) Electronic Mousetrap; (5) 4-20mA Current
Loop Tester; (6) Tester For Rotary Encoders; (7) Floating Current Source;
(8) Modified Vehicle Voltage Monitor; (9) 20-LED Chaser Uses SCR Flipflop
44 Serviceman’s Log
Dumbed down but stimulated by Rudd-bucks – by the Serviceman
82 Salvage It
Gather up those discarded monitors before it’s too late
86 Vintage Radio
The AWA 693P 3-Band 8-Transistor Portable – by Rodney Champness
Departments
2 Publisher’s Letter
4 Mailbag
siliconchip.com.au
57 Book Review
74 Product Showcase
80
96
99
102
Order Form
Ask Silicon Chip
Notes & Errata
Market Centre
PICAXE Humidity
Measuring Using
The HopeRF
HH10D Sensor –
Page 76.
June
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