XTRX – Easily embeddable software-defined radio
Miscellaneous

XTRX – Easily embeddable software-defined radio

The first ever truly embedded SDR is live on crowdsupply.com XTRX is the smallest, easily embeddable software-defined radio (SDR). It is both affordable and high-performance. Its professional-grade, drop-in technology is designed to enable the next generation of wireless solutions,...

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Universal OpAmp Evaluation Board Using LMV321
Miscellaneous

Universal OpAmp Evaluation Board Using LMV321

The Universal Op-Amp Development board is a general purpose blank circuit board that simplify prototyping circuits for a variety of Op-Amp circuits. The evaluation module board design allows many different circuits to be constructed easily and quickly. This board supports single SOT23-5...

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Windows PC Lock/Unlock Using RFID
Miscellaneous

Windows PC Lock/Unlock Using RFID

by kksjunior @ instructables.com: How often have you felt tired of typing in the password to unlock your PC/laptop every time it got locked? I'm used to locking it down quite a number of times, everyday, and nothing is more annoying than typing the password/pin over and over again,...

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Researchers Developed VO2 Based MEMS Mirror Actuator That Requires Very Low Power
MiscellaneousScience

Researchers Developed VO2 Based MEMS Mirror Actuator That Requires Very Low Power

A joint research by the US Air Force Research Laboratory Sensors Directorate and Michigan State University have developed micro-electromechanical systems (MEMS) actuator based on smart materials, specifically vanadium dioxide (VO2). In the room temperature, Vanadium dioxide exhibits...

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FPGAs For MCU Guys
Miscellaneous

FPGAs For MCU Guys

by Max Maxfield @ eeweb.com: A little while ago, it struck me that I was getting tired of explaining what FPGAs are and how they work their magic to those of my chums who — thus far — have worked only with microcontrollers (MCUs), so I decided to write a three-part mini-series of...

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Call for Makers: Hackaday Prize for Social Impact Projects
HardwareIoTMiscellaneous

Call for Makers: Hackaday Prize for Social Impact Projects

In patnership with Digi-Key, Supply Frame and Microship, Hackaday is calling for the curious, the creative, and the determined who are working to create social change in order to transform the world using their hardware and programming knowledge in addition to scientific, design,...

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Amplifier requires no dc bias
Miscellaneous

Amplifier requires no dc bias

john guy @ edn.com writes: Intrinsically capacitive transducers and other high-impedance signal sources usually require ac coupling and a buffer amplifier to condition the signal for further processing. Buffers take many forms, but most of them compromise signal quality through the...

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Simple negative resistance oscillators
Miscellaneous

Simple negative resistance oscillators

Bob tipped us about a simple oscillator that uses negative resistance: Normally -according to the Ohm's law- when the applied voltage is increasing, the current is increasing too, however some components can break this law. When the voltage increases, current decreases. This is...

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