For the first time in history, a prototype radio has been created that is claimed to be completely digital, generating high-frequency radio waves purely through the use of integrated circuits and a set of patented algorithms without using conventional analog radio circuits in any way whatsoever. This breakthrough technology promises to vastly improve the wireless […]
The oscillators are the devices that generate oscillatory (AC) output from given DC input. There are different kinds of oscillators based on the output waveform they generate. Like ·        Sinusoidal oscillators – they generate sinusoidal (sine) wave output ·        Square wave oscillators – they generate square (or rectangular) wave output ·        Triangular wave oscillators –
Sine wave oscillator using LM741 Read More »
Researchers from several universities, including the Georgia Institute of Technology, are working on a keyboard that can isolate typing patterns — such as pressure applied to each key and the time spent between strokes — to accurately identify users. Their findings were published in the journal ACS Nano. Four layers of transparent film on the
“Smart” keyboard knows who’s typing Read More »
PiJuice is the ultimate module for all portable Raspberry Pi projects. Includes many fun maker projects and a solar power version too! About this project We Have Lift Off! Over 450% funded! We’re blown away and so grateful for everyones support! We’re now fired up to develop our great open-source projects and we also have
PiJuice – A Portable Project Platform For Every Raspberry Pi Read More »
Whether he really said that or not is still up for debate. The quote appeared at the beginning of an editorial written by James E. Fawcette published in the April 29, 1985 issue of InfoWorld and the was attributed to a certain William Gates, chairman of Microsoft in response to a question about why PC-DOS
640 K ought to be enough for anyone… Read More »
Node-RED is a visual programming interface for the Internet of things. It doesn’t require coding experience, making it easy to connect your physical things to the cloud. Node-RED is based on Node.js. The Node-RED application runs as a web server, and you customize and manipulate functional “flows” from any computer’s browser, local or remote. The server application can
Introducing Node-RED Read More »
Old CRT monitor or TV is a great source of electronic components that can be used in DYI constructions. One of them is a flyback transformer that can provide 10-30kV output. The input voltage can be in a range from a couple of volts to over a dozen of volts, power consumption is a couple
High voltage supply (10-30kV) made from CRT television flyback transformer Read More »
DipTrace is a sophisticated schematic and PCB layout software. I had it installed on my computer for over a year but have never really used it. Since I needed a super simple PCB for some 78XX / 79XX type linear regulators, I decided to use this opportunity for my first steps with DipTrace. DipTrace offers
PCB layout design with DipTrace – An overview Read More »
This Design Idea gives two versions of an indicator light that changes from green to red as a battery discharges. There are many circuits that do this sort of thing, but all the ones I have seen are too complex and costly for my taste. This DI shows a method that uses an absolute minimum
Voltage indicator transitions between colours Read More »
Dendrites – thin conductive filaments that form inside lithium batteries – reduce the life of these cells and are often responsible for them catching fire. Scientists working at the Pacific Northwest National Laboratory (PNNL) of the US Department of Energy claim to have produced a new electrolyte for lithium batteries that not only completely eliminates
New electrolyte promises to rid lithium batteries of short-circuiting dendrites Read More »
