Directed Energy Weapons: Less-Lethal Laser Weapons

Under directed energy weapons, so far we have covered particle beam weapons and high-power microwaves. Let us now take a look at some less-lethal laser weapons. Directed energy laser systems are generally...

Controlling RGB LEDs To Get Million Colors In Your Pocket!

Many modern lighting applications need millions of colors. That is why we are finding RGB (Red Green Blue) LEDs all around us - in our phones, traffic lights, cars, advertising signs,...

Display Brightness Control Using Ambient Light Sensors

With more than ever electronic products available today and accessible by consumers, Ambient Light Sensors have become an indispensable component for a variety of design needs. Poor environmental lighting or changing...

Build Your Own Point-of-Sale (POS) Terminal!

Nowadays, electronic Point-of-Sale systems or EPoS have changed the way we perform transactions. EPoS systems are used worldwide for card-based payments at places like restaurants, stores and other retail outlets, enabling more...

Wireless Bluetooth Audio System For Outdoor Use

Want to take your tunes on-the-go? Bluetooth audio systems are great and give you the freedom to take music wherever you go. Instead of buying an expensive sound system, you could design your own...

How To Make A Wireless Sensor Node?

In many applications, harvesting of ambient energy sources becomes a necessity.  Wireless sensor nodes are thus becoming increasingly widespread these days for monitoring and recording parameters like temperature, humidity and pressure at diverse...

How To Make A Solar Inverter?

Solar Inverters have now made a wide transition from simply inverting the DC currents of the solar panels to AC. Inverter manufacturers are constantly striving to innovate and cut down costs,...

Communication: Today’s Concepts, Tomorrow’s Phones

As far as technology is concerned, the future is always far away. Designers never live in the present moment. If they did, we would not be having smartphones in our hands....

How To Design A Power Factor Correction (PFC) Circuit?

An important factor that decides the power quality in an electrical system is Power Factor (PF). Almost all types of mains powered electronic and electrical equipment utilise Power factor correction (PFC) schemes...

Build An Efficient HID Lamp Driver Circuit

LEDs are one of today's most energy-efficient and rapidly advancing lighting technologies. However, High intensity discharge (HID) lamps are still an attractive lighting choice in recent times for their many advantages over incandescent...

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How To Take Your Medical Device From Idea To Regulatory Approved Product

video
This video is based on a conference talk that happened on the 12th of January at India...

Satellites Deciphered

We are nothing but a speck on the canvas of the universe; but this has not set...

Simple Prototyping Platform

THE HARDWARE SIMPP or Simple Prototyping Platform is an open source electronic prototyping platform used for building electronic...

Optical Smoke Alarm

This optical smoke alarm (Fig. 1) is built around opto-interrupter MOC7811 (IC1) and dual op-amp LM358 (IC2).When...

How Internet of Things (IoT) revolution is changing the Telecom Landscape

Telecommunication is most commonly associated with inventions such as the telephone, fax machine, emails, and radio; essentially...