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Working of a Refrigerator 

Refrigerators are the most commonly used household appliances all over the world. But Have you ever wondered how the refrigerators in your home? In this video, the presenter will show you how...

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...

Directed Energy Weapons: High-Power Microwaves

Part 1 and Part 2 covered particle beam weapons and their technology, respectively. In this part we look at high-power microwaves (HPMs). In the era dominated by electronic warfare and smartweapons systems...

Products at Their Best at CES

Carrier-independent, low-power emergency phone SpareOne is an emergency communication device that ensures you remain connected even in the worst situations. It works with a single AA-size battery and has 15 years of...

To Strip Down or Not! How to Make a Mass Market Product

Technology is one of the key routes in bridging the gap between the rich and the poor in countries like India, and can facilitate development in many ways. It can enable...

How To Make A Low-cost DVD Supply?

Different blocks in the DVD player system require different DC supply voltages to power them. For example, logic circuitry may require 5V, DSP, MCU and memory chips may require 3.3V, motors...

Malls of the Future

  You are walking through a swanky shopping mall and you notice an interactive advertising wall with QR codes displaying several latest woollen jacket designs. It is beginning to get colder and...

How To Make Ceiling Fan/Server Fan Motor Controller?

The next generation of home ceiling fans and server fans exclusively use 3-Phase brushless DC (BLDC) motors as they offer many advantages such as longer life, low power consumption, and lighter...

IR Remote Designs For Home Appliances!

With readily available and inexpensive Infrared emitters and detectors, Infrared (IR) remotes are quite common in almost all home appliances like televisions, CD/DVD players, air conditioners, microwaves, computers, set-top boxes and...

How to Secure your Laptop

Just having your laptop locked up in a laptop bag is not enough to deter thieves. You need to have certain measures in place to prevent the laptop from getting stolen,...

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