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Electronics For You
March 2016 Issue
Vol. 48 No. 3
Tech Focus
Gesture Recognition Beckons The Next Wave Of UI
User interface (UI) design problem: Too many steps to do something. Engineers have been enabling advances here by moving from physical keys, switches and knobs to resistive touchscreens and later to capacitive screens that accept multi-touch inputs, swipes and other gestures.
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Buyers' Guide
Choosing The Right Sound Level Meter
When performing acoustic testing, choosing a proper sound level meter (SLM) testing system is the key. An SLM is commonly used in noise pollution studies for quantification of different kinds of noise, especially industrial, environmental and aircraft.
| Connectors
Exploring USB Type-C And USB Power Delivery
Every now and then there is an innovation or advancement that changes the way we operate, the way the world operates.
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Healthcare
Assistive Electronics For The Old And Disabled
Electronic devices have not only transformed the lifestyle of common people by providing comfort, security and entertainment, but have proved a boon for people with injuries or physical disabilities.
| Components
What Drives Power-Conversion Components
The need of the hour is higher speed at lower power consumption. A laptop is expected to boot-up quickly and its charge to last for at least a few hours. Military equipment must function right in the most stringent conditions.
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Safety
How To Avoid Incorrect Use Of AC Fuse In DC Circuit
Using an incorrect fuse in a circuit could have potentially disastrous consequences to people and equipment. In a solar system consisting of multiple strings of photovoltaic (PV) modules, strings are protected using direct current (DC) fuse links that are installed in a combiner or array junction boxes. This article attempts to give a sneak peak into the rationale behind the selection of fuses for a PV DC system.
| Innovation
1btn: The Button That Can Control All IoT Devices
The Internet of Things (IoT) is fast making its presence felt in all walks of life—right from an operation theatre to a home theatre set-up. But with all the worry about security and power issues, no one wants their devices to be connected to everything 24/7. This story on innovation is about one such device that comes to life only when you trigger it.
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Test & Measurement
What Drives RF Test Equipment
From defence radars, magnetic resonance imaging (MRI) and mobile communications, to microwave ovens and Wi-Fi, radio frequency (RF) signals are present all around you.
| Make In India
Manufacture: ESD-control Ionisers For Class-0 Devices
Electrostatic discharge (ESD) protection is the primary failure-control mechanism implemented by organisations handling ESD-sensitive components (ESDS).
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Make In India
Market Survey: What’s Likely To Make T&M Industry Grow Faster
As electronic gadgets increase in complexity and feature advanced wireless capabilities, testing has become imperative.
| Do-It-Yourself
Introduction to Smart Wi-Fi
We need faster tools and media to prove our ideas, and this is where ready-to use modules like Smart Wi-Fi enter.
Download source code
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Do-It-Yourself
IoT Wi-Fi Temperature-Logging System
Here is a temperature data-logging system based on PIC16F887 microcontroller (MCU), Wi-Fi and ThingSpeak application programming interface (API).
Download source code
| Do-It-Yourself
4-Channel Multi-mode Audio Amplifier
Sometimes we need configurable multichannel amplifiers for experiments or for use in offices or schools. Here is a circuit based on TDA1554Q, configured for multi-mode function with four channel outputs.
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Do-It-Yourself
Infrared Sensor Based Power Saver
Quite often you forget to switch off the light or fan when going out of the room. The simple circuit presented here will automatically switch off electrical appliances like lights or fans as you vacate a room, after a predetermined time period.
| Do-It-Yourself
Vibration-Activated Smart CRO Probe
Here is a simple, low-cost, energy-saving and device-saving circuit for an electronics lab, service centre, electronics workshop, or wherever a CRO is in use.
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Do-It-Yourself
Android Smartphone As Barcode/QR Scanner
We are all familiar with barcode scanners used in shopping malls, logistics and other places. These can scan only barcodes and are usually wired. Also, these can scan only one type of barcodes.
| Do-It-Yourself
Implementation of Shannon Encoding Algorithm Using LabVIEW
In the field of data compression, Shannon coding is a lossless data-compression technique for constructing a prefix code based on a set of symbols and their probabilities.
Download source code
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EFY Plus DVD
Modelling with Modelica In OpenModelica
You are trying to rig up a simple circuit. A signal source, power supply and a few passive components are all you need.
| EFY Plus DVD
From Gates To FPGA, Deeds Teaches Complete Digital Design
Logic design is a vital part of modern electronics curriculum. Through this article, we try to familiarise our readers with a smart digital system design environment called Deeds, or Digital Electronics Education and Design Suite.
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EFY Plus DVD
EEGLAB For Electrophysiological Signal Processing
EEGLAB is a GNU general-public-licensed MATLAB toolbox for processing electrophysiological data from electroencephalography (EEG), magnetoencephalography (MEG) and others.
| First Look
.STK India launches action camera
.Wallet speakers by Spider Designs
.Advent unveils Bluetooth headset
.Smart fitness band by ENRG
.Pioneer India unveils AV player
.Zebronics launches gaming cabinet
.Xander Audios launches multimedia speaker
.GizMo ByTes
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Tech Focus
A ‘Minority Report’ Style Gesture Interface: Do We Really Need It?
From text to graphics, from keyboards to mice to touchscreens, we have come a long way. Gestural interface comes next in this logical progression of human-machine interfaces (HMIs). The journey has already begun.
| EFY Plus DVD
Equip Yourself With The Latest In Design And Development Software
EEGLAB is an interactive MATLAB toolbox for processing continuous and event-related EEG, MEG and other electrophysiological data incorporating independent component analysis, time/frequency analysis, artefact rejection, event-related statistics and several useful modes of visualisation of the averaged and single-trial data.
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eStyle
Buyers Guide: Digital Blood Pressure Monitoring Devices
Electronic blood pressure (BP) devices, also called BP monitors or digital monitors for BP, are battery-operated monitors that use a microphone to detect blood pulsing through the arteries. While you have the option of choosing between devices that measure BP at the upper arm, wrist or finger, the most-popular ones are upper-arm devices. This is because these are expected to give most-accurate and consistent results.
| eStyle
Do-It-Yourself: Increase Battery Life Of A Smartphone
Most smartphones these days have huge, high-resolution screens, powerful processors and a lot of memory to multitask and handle extremely complex tasks.
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Do-It-Yourself
FIFO Design Using Verilog
Presented here is a first-in, first-out (FIFO) design using Verilog that is simulated using ModelSim software.
Download source code
| Interview
Sensors: Sensor-Fusion Solutions Are Triggering Better Performance In Wearables
Convergence of physical and virtual worlds has created new opportunities across industry segments. How have these sensors evolved? Krishnananda Shenoy, AVP and principal architect, engineering services, Infosys, speaks with Dilin Anand from EFY
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Useful Websites
All About FPGAs
Field programmable gate arrays (FPGAs) are ICs that can be programmed to perform any logic function. Given in this section are a few websites that could be useful in learning and understanding the technology behind FPGA
| Tech News
Will LTE-U destroy Wi-Fi
There seems to be a battle going on between the proponents of Wi-Fi and those keen to introduce a new technology—LTE in Unlicensed Spectrum (LTE-U).
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Make in India: Industry News
Maharashtra hopes to be electronics hub by 2020
Maharashtra government is counting on the electronic system design and manufacturing (ESDM) policy for developing the state as an electronics hub, with an annual turnover of US$ 12 billion by 2020.
| Make in India
Components
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Interview
Microcontrollers: MCUs Play A Major Role... In Terms Of Intelligence At A Higher Level
What is driving more engineers to use modern microcontrollers (MCUs) for their latest designs? This interview takes a look at the little things about MCUs. Vishal Malhotra, national sales head - automotive, Infineon Technologies India, and Andy Wong, senior regional marketing manager for Industrial Microcontroller (IMC), PMM division, Infineon Singapore APAC, speak with Dilin Anand from EFY
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Latest Display Technologies
Solar Industry Market
Buying Digital Multimeters
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