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Arduino theremin like musical instrument

When I got my Arduino protoshield from sparkfun, I wanted to make something cool with it. And since I had seen a few Theremin projects before, and already thought about making some, I finally made one, using the Parallax PING sonar sensor. Here are some informations about how I made it. You can see all the pictures here First, the schematics: Here's the commented code for the Arduino: int pingPin = 7; int b ...

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Arduino BiCMOS Curve Tracer

Draw curve traces for both Bipolar and CMOS transistors using this hardware and free online software. Step 1: UpLoad and Plot Curve for NPN, PNP, NMOS, and PMOS The data for the transistor curves gets uploaded into any computer and can be plotted using SciLab or Octave Step 2: Hook Up The Circuit The circuit is simple enough for a solderless breadboard. But this type of circuit tends to want to be used more ...

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Touch Control Panel using Arduino

Small 4-wire resistive touchscreens are now amazingly cheap: they are produced in such enormous quantities for mobile phones, PDAs, and particularly handheld games such as the Nintendo DS that they can be bought brand new for under US$10. Larger touchscreens are also rapidly falling in price. The popularity of netbooks with screens between 7" and 10" in size has resulted in a healthy market for touchscreens ...

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Athena: The Global Car Tracking System(3D Images)

Bring out your 3D glasses and enjoy viewing in a novel way! I have added a new dimension to my instructable. If you do not have 3D glasses, then you can make one yourself. The following link explains how to make 3D glasses ( link ). Please Note: This instructable contains 3D images which are best viewed with Red and Cyan 3D Glasses. However, for those of you who do not have 3D glasses, this instructable als ...

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STEAMPUNK STEAM GAUGE, POWERED BY ARDUINO

This was created to be some eye-candy for my kitchen. I wanted something unique for a special blank space on my wall, and adding movement, blinky lights and interesting mechanical “guts” made it even better. Ultimately, this project ended up requiring the following range of skills: 1. Basic mechanical skills 2. Light metalworking and fabrication 3. Graphic design – for the new dial face 4. Circuit design 5. ...

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Proximity Sensing Origami Flower using Arduino

Origami is the traditional Japanese art of paper folding.  In this project, with a little help from an Arduino, you can bring your origami into the 21st century and make it an interactive art! The result shown here uses Bare Conductive paint to give an origami flower proximity sensing powers.  When you put your hand close by, it triggers a small vibrating motor, and the flower wiggles around to say "hello!" ...

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Beacon

In this tutorial you will learn how to turn any conductive surface into a capacitive touch sensor. This project illustrates how to use capacitive touch to turn on a motor (fan) and neopixel. In this example, all of the components were custom designed and built specifically for this application. Since this method can be used for many different applications, this instructable will cover the behind the scenes ...

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Arduino Esplora Light Calibrator

This sketch shows you how to read and calibrate the Esplora's light sensor. Because light levels vary from one location to another, you need to calibrate the sensor for each location. To do this, you read the sensor for a few seconds, and save the highest and lowest readings as maximum and minimum. You'll use the sensor's reading to set the brightness of the LED by mapping the values to a smaller range, usi ...

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Open Source Server Room Monitor using Arduino

This server room environmental monitoring system is a low cost high performance device with the same onboard features as commercial devices costing hundreds of dollars more. In addition to a low cost platform we will provide low cost sensors for many important devices to insure your equipment stays safe and sound. Full instructions are available at sproutboard.com as well as several kits to create some very ...

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Sensing Squeeze using Arduino

I’m researching squeeze sensing as a mode of tactile interface. Here I will cover the process of developing a squeezeable sensor and the firmware/software concerns associated with interpreting the data from the sensor. This fulfills the “sensor project” for my class called Computational Principles in Media Arts taught in AME at ASU by Todd Ingalls and Hari Sundaram. First off, how do we sense “squeeze?” Peo ...

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