“Smart” keyboard knows who’s typing

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 device, including polyethylene terephthalate, indium tin oxide, ...

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USB NeXT Keyboard with an Arduino

Ladyada and pt had an old NeXT keyboard with a strong desire to get it running on a modern computer. These keyboards are durable, super clicky, and very satisfying to use! However, they are very old designs, specifically made for NeXT hardware, pre-ADB and pre-USB! That means you can't just plug the keyboard into an ADB or PS/2 port or PS/2 to USB converter (even though it looks similar). In fact, I have no ...

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Extra inputs for Arduino with a keyboard

The Arduino is perhaps the coolest thing on earth. There are many types, the Uno, the Mega, the Pro, the Pro Mini, etc. etc. But one thing that often can be a problem is that you only have a limited number of inputs and outputs. There are many solutions for that, ranging from multiplexers to port expanders. But one thing that gives you up to 171 extra inputs is to use an old keyboard. And that is that this ...

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Control Keyboard & Mouse Android app via Arduino

This instructable will show you how to control your computer's keyboard and mouse with an Android app via bluetooth to an Arduino BACKGROUND Ever wanted to control your computer's mouse/keyboard functionality without having to actually sit in front of it? I do all the time. For instance, I often hook my laptop up to the TV in my living room to watch a show on Netflix. Well, roughly 20 minutes later, when th ...

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Arduino Keyboard and Mouse Control Code

This example illustrates the use of the Mouse and keyboard libraries together. Five momentary switches act as directional buttons for your cursor. When a button is pressed, the cursor on your screen will move, and a keypress will be sent to the computer. Once you have the Leonardo programmed and wired up, open up your favorite text editor to see the results. NB: When you use these libraries, the Arduino tak ...

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PS/2 Keyboard Or Mouse using Arduino

Arduino isn't limited to taking input from sensors: you can even connect up a full-size PS/2 keyboard just as if it were a "real" computer and type away! Connecting a keyboard to an Arduino may sound a bit odd (after all, it's just a little microcontroller) but keep in mind that an Arduino actually has more processing power and memory than a complete desktop machine of not so many years ago. Adding some per ...

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Virtual USB Keyboard Using Arduino

Communicating with a host computer can allow a simple Arduino-based system to gain access to a wide variety of devices and information. Most people link an Arduino to a host using serial communications across a USB connection with custom code running on the host to send information to the Arduino or receive it in return, but giving your Arduino the ability to pretend to be a keyboard or mouse opens up a who ...

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The morse code generator by a PS\2 keyboard using Arduino

Hi, all! Today I' m trying to explain you my last project: "The morse code generator by a PS\2 keyboard" I' ve used an PS/2 keyboard to send input to my Arduino board (like described in here) and transform it in morse code that activate a speaker and a relay. Components: - PS\2 keyboard - Arduino Uno(or others) - Wires - 5V relay - BC547 transistor - Small speaker - Recirculation Diode Step 1: Setting hardw ...

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Arduino Keyboard Message Code

When the button is pressed in this example, a text string is sent to the computer as keyboard input. The string reports the number of times the button has been pressed. Once you have the Leonardo programmed and wired up, open up your favourite text editor to see the results. NB: When you use the Keyboard.print() command, the Arduino takes over your computer's keyboard! To insure you don't lose control of yo ...

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Simple keyboard using the tone() function using Arduino

This example shows how to use the tone() command to generate different pitches depending on which sensor is pressed.   Circuit Connect one terminal of your speaker to digital pin 8 through a 100 ohm resistor, and its other terminal to ground. Power your three FSRs (or any other analog sensor) with 5V in parallel. Connect each sensor to analog pins 0-2, using a 10K resistor as a reference to groud on ea ...

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Arduino MIDI Foot Pedal Keyboard

The Origin My dad is a musician.  He can play a multitude of instruments.  However, he only has two arms, BUT he also has legs!  That's when we decided that we would reuse the foot pedals from an old organ and convert them into an arduino powered MIDI keyboard.  Now he can easily play electric guitar and fill the empty sound with excellent bass notes produced from his QS8 Quadrasynth. An Introduction to MID ...

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