DIY barrel piano powered by Arduino

Musicians, makers and Arduino enthusiasts may be interested in a new project created by Max Danilin, showing a DIY automatic barrel piano, powered by an Arduino micro-controller and capable of outputing MIDI signals. A sheet is pulled under an array of 40 optocouplers using a hand crank and converted to sound using a MKR Zero board. “Old musical instruments use rather complex mechanisms with shafts projecti ...

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BML GPIO-14 USB Board for PCs

Ever miss the simple days of using a PC’s LPT1 parallel port to bit-bang GPIO over 8 output pins and 4 input pins of the DB-25 connector? I sure do. My first design project as a BSEE graduate in 1993 was to design a LPT1 controlled test fixture for the Motorola MDT-9100-T data terminal (shown below). Those were the days. By multiplexing 12 parallel port pins into 74HC dip CMOS latches and transceivers my te ...

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Epiq Solutions Develops Wideband RF Transceiver SDR Module Running Linux On Zynq SoC

Epiq Solutions, a company from the USA, has included a new member of its Sidekiq line of Software-defined radio (SDR) add-on cards called the Sidekiq Z2. Dimensions of this card are only 51 x 30 x 5mm, the size of a full-size mini-PCIe card, the Sidekiq Z2 computer-on-module is advertised as “the world’s smallest wideband RF transceiver + Linux computer in a product-ready module”. ...

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SocioNext MN87900 is a Single-Chip 24 GHz Radio Wave Sensor for the Internet of Things

The Socionext MN87900 from Socionext is a powerful and low-power single-chip microwave sensor at 24GHz with sophisticated sensing capabilities like motion detection, speed and direction detection and so many, that can quickly find applications in the Internet of Things sensing applications. Unlike PIR sensors like the popular HR-SR501 that can detect motion to about 3 meters at about 120 angles and based on ...

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Embedded oscilloscope family for advanced electronics

Signal analysis: quick results See small signal details in the presence of large signals The R&S®RTM3000 features a customized Rohde & Schwarz designed 10-bit A/D converter that delivers a four-fold improvement over conventional 8-bit A/D converters. The increased resolution results in sharper waveforms with more signal details that would otherwise be missed. One example is the characterization of s ...

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Use the Force… or Your Brainwaves? (multifuctional Thought Controlled System)

As a kid I always wanted to have a special ability, like moving objects with thoughts or flying. I tried to move objects with “the power of my mind” of course with no success. Well, yes, I was and I am a huge Star Wars fan, but I also like electronics and programming, so why not combine these two things to build an incredible project? You can find all parts, codes and libraries with links at the Hardware an ...

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The “Neuropixels” probe records brain signals

After $5.5 millions collaboration and a lot of work during the past four years of engineers at Imec, the next-generation electrodes called Neuropixels probe were designed to record hundreds of neurons in the brain. Imec is an international nano electronics research center dedicated to build and test powerful new devices for detecting neural activity within the brain. To understand how the brain operates, we ...

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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 the Mott transition. It is a not-well-understood phenomenon known to occur in transition metal chalcogenides and transition me ...

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Flat microscope for the brain could help restore lost eyesight

HOUSTON – (July 12, 2017) – Rice University engineers are building a flat microscope, called FlatScope TM, and developing software that can decode and trigger neurons on the surface of the brain. Their goal as part of a new government initiative is to provide an alternate path for sight and sound to be delivered directly to the brain. The project is part of a $65 million effort announced this week by the fe ...

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L BAND SATELLITE ANTENNAS REVEALED

[SignalsEverywhere] has a lot of satellite antennas and he’s willing to show them off — inside and out — in his latest video that you can see below. Using software-defined radio techniques, you can use these antennas to pull off weather satellite images and other space signals. A lot of these antennas are actually made for some commercial purpose like keeping ships connected to Inmarsat. In fact, the shipbo ...

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A DC Motor Controller with Control Leds

It can be controlled through logic levels to set the speed and the direction of the rotation of CC brushed motors and stepper motors; outputs have LEDs indicating the rotation direction. The circuit board we are presenting this time is based on the dual-bridge driver L298N, in a traditionally mounted version in a Multiwatt container with 15 staggered pins; it has two terminal blocks for attaching to DC moto ...

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3 Phase AC Motor Controller

This project made using MC3PHAC from NXP Semiconductor. The project generates 6 PWM signals for 3 Phase AC Motor controller. It’s very easy to make professional VFD combining with Intelligent Power Module (IPM) or 3 Phase IGBT/MOSFET with Gate driver. The board provides 6 PWM signals for the IPM or IGBT Inverter and also brake signal. Also this board works in stand-alone mode and doesn’t require any softwar ...

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