Steve Dickie's Public Library

After checking out a few projects involving IR heart monitors, I decided to have a go at the interface myself. Seen above are the results of my first experimentation with pulse oximetry. Getting the setup up and running satisfactorily required a bit more time and tinkering than I'd expected - especially after reversing a premature mod to my emitter/detector pair. The next version I try will either use a higher output emitter (see Charles Martin's version) or some amplification hardware (as used in Meng Li's sensor).

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arduino electronics projects

Look at the kit assembly instructions for some hints on instrument construction.

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physics musical instrument

More usefully described, this project uses a head-mounted-display that has sensors for detection of orientation so that the user can be placed into a Google StreetView scene and can look around freely. For movement through the map, an exercise bike used to estimate forward movement using a simple reed switch that counts the number of revolutions of the wheel.
Pragmatically explained, it means that I don't have to sit in the darkness or stare at my garage door while I'm huffing away. Hopefully once this is done, I'll be able to spend a few nights a week pedalling away downstairs and work my way across the US or Australia over the course of the year. The irony of this project is, well, while it's supposed to help me entain myself while using the exercise bike, the project itself has been keeping me from exercising. Oh well.
It is also a project that I would be thrilled if someone took the idea and made a decent implementation out of it. Make it user focused and reliable and I'll be the first to use it.

bako.ca/streetview-riding - Preview

arduino electronics project

Have you ever wanted to make an apple remote? Or maybe want to have one of your arduino creations be able to control iTunes on your Mac, your iPod, Or your Apple TV? Now you can! 

Awhile back I was working on a project that that I wanted to be able to start music the on my mac through the IR receiver. After a while of looking around I found this library  which allows you to use your arduino as an Apple Remote. I integrated it in to my project and it worked great! So the other day I decided to make an Apple Remote shield for my arduino.

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arduino electronics apple

The idea here is to build a wearable virtual guitar that is to be controlled with two hands much like playing Air Guitar. It has been created and prototyped during a two weeks project at ChalmersUniversity (Sweden) for a Physical Computing class.

The aim is to get the feeling of playing a real guitar. The AIRduino Guitar is made of one glove and one stick. The glove is used to set the tone and the stick to trigger the sound.

To perform such trick, we used an accelerometer and an ultra-sonic sensor (see Step 1 for concept description).

Take a look at the video demo to get a more precise idea of how it works, and get to work to build your own!

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arduino electronics project music sound

ow many times have you seen a secret hideout with a secret knock?  It's a staple of cheesy dramas, Saturday afternoon movies, and tree houses throughout the world.

While working on another project I ran across the Arduino knock sensor tutorial.  Sensing a single knock is a great little project for learning about microcontrollers, but what about sensing specific knocks?  Seeeeecret knocks?  And if we could detect a secret knock, shouldn't it unlock a door?   If you can't tell by looking this was cobbled together from spare stuff around the lab, it's not much more than a piezo speaker, a tiny gear reduction motor, and an Arduino. And PVC pipe.  How about a video to explain:

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arduino electronics project

This tutorial is for all those people who have an arduino and want to use there Wii nunchuck as an input device, but dont realy feel like cutting open the cord and ruining the nunchuck FOREVER!!!!!!!!

well youve come to the right place!

www.instructables.com/...Wii-Nunchuck-Adapter - Preview

arduino electronics

This is my instructable on charlieplexing a LED row/string with the arduino. I noticed that there weren't many instructables on charlieplexing using an arduino, so i made this. I tried to keep the project simple, but that didn't work very well. The soldering is complex, I wouldn't recommend this as a first time soldering project.

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arduino electronics

"This is a simple sequencer machine which uses Capacitative Sensing Code for input to the Arduino. It is is a combination drumpad and sequencer. It has just two modes, record, and playback, and needs very few components; an Arduino (of course), and just 3 resistors and a piezo speaker. If you're feeling decadent, you can add an LED (with a resistor) for more "ooomph"."

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arduino electronics projects

First there's the stepper motor. Most older printers will have one or two stepper motors inside them. How do you know if it's a stepper motor? It will have 4, 5 or  6 wires coming out of it. They usually have some kind of gear or drive wheel on one end. It doesn't need to be big to produce the amount of electricity we need. Smaller is actually better in this case.
READ>>More about generating electricity with stepper motors<<READ

Rubber drive wheel. You will need some kind of rubber wheel to mount on the stepper motor, unless it has one. I found that the rubber grommet selection at the hardware store proved to be a good place to find a suitable wheel. You'll want one larger than the diameter of the motor. This will allow the motor to be mounted near the wheel with the rubber drive wheel touching the bicycle wheel's rim. See photos 1, 2 & 3 below. The hole in the center of this wheel should be small enough so as to be pressed on to the existing gear that's on the stepper motor and epoxied in place.

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bike generator electronics

Kaye Effect

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physics parabola projectile

introTsunami Model
Ever wonder what a tsunami is? Turns out tsunami follow the same physics as shallow water waves on an unimaginable scale (where the ocean, miles deep, is shallow compared to the length of the wave). Here 3 gutter segments are duct taped together to create a shallow water wave tank:

www.instructables.com/...Tsunami-Model - Preview

science fair waves

As my first Arduino project, it was a bit of an experiment with the Arduino programming environment, and I also wanted to investigate direct Audio synthesis using PWM on the Arduino. The basic sequencer concept came from the Arduino Punk Console, while synthesis was adapted from the Atmega SID Project.

The basic features are:

* 16-step programable sequencer with adjustable frequency and duration for each step
* synthesizer with 4 output waveforms (sine, square, triangle and sawtooth)
* noise generation (sirens, laser beam, random noise)
* special random sound modes

The user interface is kept very simple, with just four knobs, three puss buttons, 8 LEDs and a power switch. The speaker is connected straight to a pin on the Arduino via the volume knob - everything is done in the Arduino using PWM to generate analog waveforms. The LEDs indicate the current step in sequencing mode, and provide light patterns in noise modes.

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arduino electronics project sound music

Have you heard about the Inverse Square Law? It's the law that says that light intensity falls the farther you move your light from your subject. It also tells you that if you move your light to be twice as far it will fall by 4 (the square of 2). if you move the light three times as far, it will fall by 9.

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physics light lab idea

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balloon space near

Note: The book is a work in progress and is being added to all the time. However, this will not stop you using it as there are 17 great projects so far and all the information you need to keep you busy for days or weeks with your Arduino. Keep checking back to see if there have been any additions. (Last Update 30th July 2009)

You may link to this manual from your own site. However, before doing so please send us an email at mike@earthshinedesign.co.uk giving the full URL of the page the link will be included in.

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arduino

Archive for the ‘EduWear Construction Kit (Getting Started)’ Category

Easy programming environment for Arduino

dimeb.informatik.uni-bremen.de/eduwear - Preview

arduino

Watchdog and Sleep functions

This example shows how to make use of the Watchdog and Sleep functions provided by the ATMEGA 168 chip . These functions are useful if you want to build low power consuming devices operated by battery or solar power.


The reduced power consumption is achieved by through a intermittent operation of the system .In case of Arduino your main loop will be executed once before the system is put into the sleep mode. After a few seconds t the watchdog wakes the system up and the main loop is executed again. The ratio between main loop execution time and watchdog time determines the amount of power that will be saved.

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arduino

The Toy Shop was a wonderful computer program from the 80’s which allowed you to decorate and print twenty different paper models which actually move! It included all the dowels, wires, balloons, and so on which were required to create the models. I’ve enjoyed using this program on my Commodore 64 for many years, and now I am able to share these models with the paper modeling community so you can download and build your very own Toy Shop creations with any PC or Mac!

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toy free physics cardstock

Squirrel is an improved free-flight model airplane. It's a remarkable indoor/outdoor flyer with greatly simplified construction. Using Tissue Paper and Balsa Wood construction, it can be built by beginners faster and easier than any other airplane in it's class.

Unlike other models, it can be built with no tools. Only white glue, a glue stick and scissors are required.

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science olympiad