potentiometers Archives - Page 2 of 3 - Use Arduino for Projects

ELK’S DEVELOPMENT BOARD IS SUITABLE CRYPTOCURRENCY APPLICATIONS

Electronics News Updates / By Ibrar Ayyub

An Egyptian startup known as Elk has scored a Kickstarter funding for a tiny (55 x 25.5mm) IoT development board designed for decentralized web applications that can traffic in cryptocurrency payments using blockchain through Ethereum. According to Elk, the Elk board is built for blockchain-enabled IoT networks with privacy guarantees that are not feasible with mainstream IoT platforms […]

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Nui – IR Volume Controller

Electronics News Updates / By Ibrar Ayyub

Nui is an IR controlled volume controller for analog audio. It sits between your audio source and speakers and can amplify or reduce the volume using IR commands (and eventually BLE). Why do I need this? It all started because I have my trusty Logitech Z-2300 speakers and subwoofer I purchased back around 2004/5. They

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1.2V-25V/10A Adjustable Power Supply Using Power Op-Amp

Electronics News Updates / By Ibrar Ayyub

This is a small size power supply based on OPA549 power op-amp that provides output voltage 1.2V to 25V with 0 to 10A adjustable current limit. Two onboard trimmer potentiometers provided to adjust the voltage and current, LED D1 is over temperature indicator. The circuit works with input supply of 30V DC and logic supply

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GETTING MIDI UNDER CONTROL

Arduino News / By Ibrar Ayyub

When [Mr. Sobolak] started his DIY Midi Fighter he already had experience with the MIDI protocol, and because it is only natural once you have mastered something to expand on the success and build something more impressive, more useful, and more button-y. He is far from rare in this regard. More buttons mean more than extra mounting

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Linear Lab Power Supply with digital meter

Electronics News Updates / By Ibrar Ayyub

From my point of view one of the best ways to get started in electronics is to build your own laboratory power supply. In this instructable I have tried to collect all the necessary steps so that anyone can construct his or her own. All the parts of the assembly are directly orderable in digikey,

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THE AUGMENTED REALITY BREADBOARD OF THE FUTURE

Arduino News / By Ibrar Ayyub

You’d be hard pressed to find a carpenter who didn’t own a hammer, or a painter that didn’t have a couple of brushes kicking around. Some tools are simply so fundamental to their respective craft that their ownership is essentially a given. The same could be said of the breadboard: if you’re working with electronics

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How to Read Your First Autodesk EAGLE Schematic

Electronics News Updates / By Ibrar Ayyub

How to Read Your First Autodesk EAGLE Schematic Like a Pro in 3 Easy Steps The schematic forms the building block of every electrical circuit, and even if you aren’t designing one yourself, knowing how to read one is invaluable. And with some schematic reading knowledge in hand, you’ll be able to design, build and

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PuzzleBox

Security – Safety Projects / By Ibrar Ayyub

Protect your valuables with a puzzle! Things used in this project Hardware components Arduino MKR IoT Bundle × 1 Software apps and online services Blynk Story Keeping your valuable items away from prying eyes can be hard sometimes, unless you put it in a big safe or something similar… but who has room for that?

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How to Select a Resistor

Electronics News Updates / By Ibrar Ayyub

When I was working on the next version of Common Parts Library, I realized that it would be helpful to explain why you might pick one type of passive component over another. We started off by writing “How to Select a Capacitor” last month, and are following it up with a close look at resistors

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Linear applies switched capacitor step down topology for inductor less DC DC 1

Linear Bench Power Supply

Electronics News Updates / By Ibrar Ayyub

DETAILED DESCRIPTION This project is a simple linear bench power supply with adjustable voltage and current. It is meant to be a learning experience, putting ideas of circuit design, feedback, stability into practice building a complete practical power supply. I have intentionally avoided using a 3 terminal regulator or purpose built chip and instead implemented

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