Bit-music loving Arduino users - I ported (and modded a bit) one of the Noise Toy programs over to the lovely and talented Arduino platform. Just add a couple of momentary switches to pins 8 and 9 and connect stereo audio to 3 and 4 - you're done. Loud Objects' code proved quite fun to tinker/learn with - if you're curious, try experimenting with different tempo values.

Read on to view and download-o the code-uino.

Loud Objects Noise Toy kit

Arduino Diecimila

Read more about the Arduino Noise Maker

My tea kettles were developed as my final piece for Mechatronics 470, Summer Quarter 2008.My goal was to create a completely absurd experience for one or more observers/users based on recasting a familiar household object in an unexpected and unpredictable light. Three whistling tea kettles were rigged with Servo motors and Infrared motion sensors to detect human motion in front of them.

Read more about Arduino powered interactive tea kettles

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Cylon coffee pot model 0001

Like many of us, Justin doessn't have time to cook up a real breakfast before heading out in the morning. So he put Chef Arduino to work automating the process using a relay interface and a few other components -

So I hooked up a coffee maker, and two electric stove surfaces to the RelaySquid. Then I ran the RelaySquid with a slightly modified version of the BitDJ code, which I edited to make it time the signals to the RelaySquid to turn on the bacon hotplate for 7 minutes, followed by coffee for 2 minutes, and then the egg for 7 minutes (the coffee and egg run in parallel to start). The end result is crispy bacon that’s had a chance to dry out a little, coffee that’s not too hot, and a fresh hot egg!

It's blue! It's skinny! It's the Arduino Pro! SparkFun's minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader (select 'LilyPad' within the Arduino software). The Arduino Pro is very much like the Skinny, but we added a handful of features to become a fully certified Arduino board. The power switch was moved to the side of the board (good idea Limor!) to allow control when a shield is attached.

More about the Arduino Pro

The "Arduinome" is yet another Monome clone built with the Arduino controller. Check out the video for details on how this kit works.

arduinome, via CreateDigitalMusic

Todbot makes an interesting suggestion

Analog meters are hard to use in hardened environments. If you're showing data from digital sources, why not use a digitally-controlled analog meter?

laser cut acrylic meter face & needle, tiny 25mmx12mm $3 servo, and arduino.

MotorShield for Arduino Kit

Arduino polishes up its navigation skills via an inexpensive compass sensore component -

A small digital compass based on hall effect is connected to an Arduino 10000 board. The logic in the board turns on and off leds depending on direction. There are 4 leds, one for each in N,S,W,E. When two leds are ON the direction is in the middle (es. NW). The digital compass chip (the white cylinder) comes from http://www.dinsmoresensors.com/ and costs 10$

More:

HOW TO - Make a digital compass

AVR based digital compass

Read more about making a Twittering Doorbell

Read more about Formants

"Itspace" by Peter Traub is an Arduino-based physical and online sound installation where everyday household objects play sounds of themselves being struck and resonated in different ways. Check out some images of the build process of this project at the link below.

ItSpace, via Turbulence

This inventive real-time music visualisation system uses an Arduino, piezo sensors, webcams, a 3G network card, Bluetooth adaptor, and other connectors to produce some pretty interesting visual output. Check out the link for the details on the hardware involved in this project.

Live Musical Performances Visualisation System

This funny little robot has eyes, eyebrows and a mouth and will verbally read your latest Twitter status to you. It uses an Arduino Decima to control the head actions and receives the latest Twitter status information over USB from a host computer.

For those who don't know, Twitter is a micro blogging tool where users announce what they're doing with 140 characters or less. You can also send the robot something to say directly from the command line with a few Ganzbot moods to choose from.

Read more about Ganzbot: An Arduino Robot That Twitters

Little-Scale shares tips for using a button keypad with the Arduino platform -

The idea of the digital scanning of a keypad is very simple. The keypad in question has twelve buttons, set up in four rows of three (like a phone keypad, for example). Each button has two connection points – one point goes to a row pin, and one point goes to a column pin. Therefore, seven pins are connected between the keypad and the Arduino – four for the rows and three for the columns. When a button is pushed, it connects the two points – a column pin and a row pin.

Arduino Diecimila

After programming the Arduino, I took out the ATMega168 and wired it into a breadboard along with a 16mhz crystal and 5 volt regulator. For the receiver I used the phototransistor wired into two logic gates of a inverting Hex Schmitt trigger. I used the Schmitt trigger to act as a buffer and ensure only proper logic level enter the USB to serial converter on the Diecimila board.

Read more about how to make a Laser Modem with an Arduino Micro-controller

This open source serial to MIDI converter lets you easily get MIDI data from your Arduino to any Windows MIDI application of your choice over USB. Pretty cool hack that avoids the need for a MIDI out circuit for your Arduino or USB/MIDI converter to your computer.

S2MIDI: Open Source Serial to MIDI Converter for Windows

While certainly nowhere near as fancy as this Wall-E replica, the price is right and the Arduino's got a huge body of pre-existing code for working with sensors that the aspiring roboticist can build upon. I'd particularly like to see a trash-compacting version...

Full disclosure: imadami is the maker of this project and also my youngest brother. And no, I don't want to hear about how much cooler this project is than my own!:)

Flickr user [fluxa] put an Arduino board to work outputting control voltage to a DIY SoundLab synthesizer.

While the PC software has yet to be released, the Arduino code is pretty straightforward - using a pulse width modulated output through a simple resistor/capacitor filter. - CVAirSequencer Project on Flickr

Hmm ... If that R/C filter slows down response time too much, one could always use a simple SPI or R2R DAC, and forego the PWM altogether.

More:

- HOW TO make a Sound Lab Mini-Synth

This project uses a variety of sensors, Max/MSP, Jitter, and an Arduino to create an interactive virtual environment. I like the augmented plants. When the user touches the plants they create different types of musical notes. Another favorite part is the pressure sensitive moss. There is a lot more information and pictures on the website.

The project explores the integration of biological and technological systems in the development of an interactive human interface. This notion is investigated through the design and construction of an interactive installation where user interactions with hybrid systems affect the light and sound-scape of the installation space. The design is suggestive of an information rich, technologically augmented landscape. Kinesthetic user/landscape relationships are forged within a mediated spatiality of light and sound.

More about Augmented Ecologies

If you love the Arduino software but find yourself hampered by the included ATmega168 chip's memory size or pin count, Zach Hoeken has a solution -

Sanguino is a new microcontroller board inspired by the Arduino. We took the biggest baddest 40-pin DIP that Atmel makes and made a board with it. Its based on the atmega644P which provides 64K of flash, 4K of ram, 32 GPIO pins, and tons of other stuff. The best part: its compatible with the Arduino software, which means all of your code should run on it no problem, and you can program it just as easily.

- Sanguino kits

- Sanguino website.

You just blogged about aviators, EAA, and Makers. Once we finish building our airplanes, another cool thing that we're very lucky to be able to do is modify and improve them as well. That's something you're not legally allowed to do to the average Cessna. Sadly, since there's no runway at the expo center, I haven't been able to show these off at the Maker Faire :)

One minor improvement I've made to my homebuilt RV-9A is this ATMEGA-based angle-of-attack display. (link above) I've also built an Arduino GPS logger to record my travels.

There are far more ambitious projects as well. Several of us have designed LED-based exterior lights for our airplanes, and there is even one enterprising company selling open-source avionics.

My friend Randy at the fffffatlab made this breathalyzer microphone:

The breathalyzer microphone is a system for the inconscpicuous collection of blood-alcohol content level data sets. In other words, you can measure a person’s sobriety with a device, that for all intents and purposes, looks no different than a standard microphone.

He has also created full step-by-step instructions for the project. I can see it applied in addition to the regular microphone to weight your karaoke score based on how much you've had to drink.

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Arduino breathalyzer controls video game

A simple and fun example of physical computing - the piezo film responds to physical stress by producing a voltage which is then measured by the PC and translated into on screen movement by Flash software.

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Low cost Piezo film blood flow pulse sensor

Arduino Diecimila

At ladyada's tea party, user mtbf0 has posted details of his RGB brain machine powered by a Boarduino.

...it generates a base frequency at 200Hz. Offset frequencies of 201Hz-217Hz in 1Hz increments can be selected giving binaural beats in the range of 1Hz-17Hz. The LEDs are controlled by comparing the phases of the base and offset waveforms, so although the code's a little hairier than Mitch's, adding new frequencies is easy.

Trippy RGB brain machinuino

Owen of Critter and Guitari shares tips on building a keyboard/case for the Arduino Pocket Piano synthesizer shield. Using the described button-dowel approach allows one to raise the key inputs without any soldering or expensive panel mount replacement parts - good stuff. - Felt Button Enclosure for the Pocket Piano

Arduino Pocket Piano Synth Kit

Michael Dory, Adam Simon, and Scott Varland of Socialbomb presented a tutorial on Arduino hacking at last month's O'Reilly Open Source Convention:

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

In this tutorial, participants will learn how to create devices for sensing and communicating with the physical world using the Arduino platform. This session will feature an introduction to physical computing and interfacing with microcontrollers, as well as the basics of Arduino (hardware and software) and using it with the Processing programming environment.

Participants built an Etch-a-Sketch clone and went home with a copy of Making Things Talk, an Arduino, and a bunch of related components. project build Flickr set | Arduino OSCON photos on Flickr

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Making Things Talk - Programming microcontrollers used to require an expensive development environment costing thousands of dollars and requiring professional electrical engineering expertise. Open-source physical computing platforms with simple i/o boards and development environments have led to new options for hobbyists, hackers, and makers. This book contains a series of projects that teach you what you need to know to get your creations talking to each other, connecting to the web, and forming networks of smart devices.

The "SuperSoaker Car Organ" was built with the entire right side paneling of a Toyota 4Runner SUV that was mounted on wooden beams from the back that supported its weight. The outside panel was created with red duct tape and conductive aluminum foil tape to serve as a large-scale circuit board attached to the switches controlling the instruments and the inputs to turn on the lights. An Arduino controlled the lighting sequences when it sensed input from the closed switches and triggered a blinking pattern that went off in timed intervals.

Read more about the SuperSoaker Car Organ

Bricogeek's "Ardugame" is and Arduino based handheld gameboy-look-alike that looks like a lot of fun. The machine's equipped with an OLED display, speaker, accelerometer, and even a DB9 port for multiplayer expansion. - Ardugame [google translation]

An interesting sort of update to the classic player piano design -

The sequencer plays the notes as a arpeggiator, i chose for this playback method because i dont have a midi device that can play 24 keys at the same time.. There are 2 different arpeggio modes. One rearranges the playback sequence to the active notes velocitys. And the second mode changes the arpeggio playback speed to the amount of notes that are active. If this mode is not selected the playback speed is set by a potentiometer. These modes can also be combined.

The sequencer has 24 LDRs that are read into 3 ADC ports of the arduino, via 3 4051 ics.

Bare Bones Arduino Board Kit (Unassembled)

This project details the installation of an Arduino and Xbee based wireless sensor network to harness agricultural intelligence in order to build a capable decision support system for farmers to optimise natural resources and maximize production while minimizing environmental damage. Visualizations of the data being collected are seen on local laptops for eventual distribution over the Internet.

Sensor network at Kew Gardens