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Electronics For You
January  2012   Issue Vol. 44  No. 1 

Technology Focus
Latest in Chip Fabrication
A ‘triple threat’ of new complex technology advancements faces semiconductor manufacturing—three-dimensional interconnect (3D IC), extreme-ultraviolet lithography (EUV) and 450mm wafers. To reap the benefits, the industry needs to resolve both technical and business related issues
Buyers’ Guide
3G in Your Hands
3G is the watch-word in mobile space. Here is what to look for in a 3G handset
Microcontroller-Based Intelligent Traffic Light System
Traffic light intervals are fixed independent
of the traffic movement. So sometimes large redlight delays cause traffic congestion.
Download source code
Circuit Ideas
Ultrasonic Transmitter and Receiver
Most ultrasonic transmitters and receivers are built around timer IC 555 or complementary metal-oxide semiconductor (CMOS) devices.
Circuit Ideas
Solar LED Lantern
This solar LED lantern can be used as an
emergency light. Its 6V battery can be charged either from 230V, 50Hz AC mains or a 12V, 10W solar panel.
Circuit Ideas
Safe Cigarette Lighter Power Socket
Cigarette lighter sockets available on the dashboards of some vehicles act as a heat source to light cigarettes.
Circuit Ideas
1-30 Minute Timer
Using this circuit you can switch on an appliance for a desired time.
Circuit Ideas
Constant-Current Battery Charger
This circuit provides constantcurrent charging for batteries like nickel-cadmium (Ni-Cd), nickel-metal hydride (Ni-MH) and lithium-ion (Li-ion).
Software Section
Image Processing Using C++
Digital computers store pictures as strings of binary values. The entire picture is divided into a number of pixels—the smallest elements of the picture.
Download source code
Ensuring LEDs’ Long Life
The device proposed here integrates seamlessly with a home area network and keeps a tab on the energy consumption and operation of electrical equipment while acting as a low-cost energy meter
Join the led Lighting Revolution
The technology to solve our lighting problems is here. What the industry needs is a change
in the way people think about lighting, and a new blood that senses and smells the light
In the x86 space, Intel Atom has opened
a new market for SFF designs

Headquartered in Germany, Kontron is a leading embedded computing technology provider. With more than 30 per cent of its employees in R&D, Kontron creates many of the standards that drive embedded computing platforms.
First look!
. Smartphone With Light Alert
. Tablet Tailored To Your Hand
. 2.1-Channel Multimedia Speakers
. Interactive Whiteboard
. Full-HD LED Monitor
. Ultra-Portable Projector
. GizMo ByTes
. Tablet With Sim Call Function
. Volume-Controlling Headsets

RFID-Based Automatic Vehicle Parking System
Radio-frequency identification (RFID) is an automatic identification method wherein the
data stored on RFID tags or transponders is remotely retrieved.
Download source code
Circuit Ideas
Air Ioniser
This air ioniser is built around an NE555 timer IC which is configured in astable mode.
Circuit Ideas
Versatile Battery Charger
This transformer-based battery charger circuit can be used to charge any battery, provided the transformer rating is higher than the battery rating.
Circuit Ideas
DC Motor Control Using PWM
Small DC motors are efficiently controlled using pulse-width modulation (PWM) method.
Circuit Ideas
Solar Tracking System
Generally, solar panels are stationary and do not follow the movement of the sun.
Circuit Ideas
Electronic Glow-Worm
Here is a circuit that simulates the chirping and glow of a glow-worm bug.
Technology Trends
Key Technology Trends by Industry Topshots

T&M Trends For RF Designers
The article looks at the emerging trends and applications in the RF design space which are driving the development of cutting-edge test and measurement tools
How to Save Your Android Phone Battery
The big screen and fast processor of an Android smartphone drain its battery pretty fast. Here are a few tips to help you get the most out of your phone’s battery
Wireless Water-Level Indicator
Using this system, you can remotely monitor the water level of an overhead tank that is placed up to 30 metres away.
Download source code
Turn Your Old Inverter Into An Emergency Power System
An inverter turned into emergency power system, which turns on when the mains supply
fails, and more importantly doesn’t turn on when the main supply is available
EFY Report
Can India Become Global Manufacturing Hub?
The EMS industry in India is eagerly looking forward to the implementation of the new manufacturing policy announced by the government, as it will create a level-playing field for them to compete with global counterparts
Maintaining Reliability Under Extreme Conditions in Space
The electronics on-board space exploration vehicles should be able to withstand the extreme temperatures of space. Operating it beyond the normal limits is an option worth considering
Designing A Cost-Effective and Versatile Home Area Network Device
The device proposed here integrates seamlessly with a home area network and keeps a tab on the energy consumption and operation of electrical equipment while acting as a low-cost energy meter
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