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New lessons on electronics are being prepared and will appear soon. If there is anything you would like to be covered, please contact us and ask!

We believe that as you learn electronics your world becomes bigger, richer and more inspiring. 

Electronic boardWith a handful of semiconductors, a breadboard, a soldering iron and some wires, you should be able to create just about anything you like. Don’t give up every time blue smoke pours out of a transistor, or when a circuit does something completely unexpected, it’s all part of this game. Learn as you go, using the Internet, reference books, and other people’s designs as a guide and, before long, you will be able to whip up any type of circuit without any reference material at all.

 

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A typical solderless breadboard

An electronics “breadboard” is actually referring to a solderless electronic board. It is a great unit for making temporary circuits and prototyping, and it requires absolutely no soldering.

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Vital-Radio: A Wireless Smart Home Technology Monitoring Health Status

Smart Homes are going to be the trend of the coming future. Different smart home technology is on its way to make the future homes smarter. Recently, a new health monitoring technology – Vital-Radio has been introduced by the researchers from Massachusetts Institute of Technology (MIT). It is an intelligent wireless sensing technology device that can be used as a smart home technology for tracking resident’s health status like heartbeats and breathing.

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In this topic, we will focus on the design details of a Digital, real-time Audio LED Spectrum analyzer. The aim focuses on building a device to display the distribution of an audio signal energy to 20 specific frequency bands, using DSP technology. We will use fast Fourier transform (FFT) in order to analyze any  audio signal in real time. The obtained Fourier transform will result in a bank of 20 parallel frequency filters. The output of the filters will be displayed on a simple 20 x 20 LED display. The unit will be designed to support up to four different display-modes.