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Arduino Archive: Arduino

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May 29, 2009

Collin shows his projects

Before people came in for Education Day at Maker Faire, I had a chance to talk with Collin Cunningham about the projects he has built and is showing in the Maker Shed.

May 27, 2009

Here come wings for your Arduino

When not working on Make: television, writing for Make: Online, and working as a character mechanic for Disney, our bud John Edgar Park, along with fellow MAKE contributors Brian Jepson and Tod Kurt, have been burning the midnight solder on some new peripherals for the Arduino world that they've dubbed WingShields. The first kit in the "wing-format" is the ScrewShield, a header pins-to-screw terminal blocks board. The kit includes 1 Analog-side PCB, 1 Digital-side PCB, 2 sets of 6-pin stacky female header pins, 2 sets of 8-pin stacky female header pins, enough terminal blocks to fill 34 holes on the board (these come in 2- and 3-terminal units, which slot together). The pins on the headers are extra-long to allow for stacking over or under other shields.

The ScrewShield is "premiering" at Maker Faire this weekend and will be available in the Maker Shed at the Faire. After that, it'll be available for Maker Shed mail order (as well as at other online kit retailers).

Congrats on the new venture, guys!

WingShield Industries

May 26, 2009

Power Glove controls new video games

Matt Mechtley is gearing up for Maker Faire, where he'll be showing his updated Nintendo Power Glove (with Arduino and Bluetooth, or course). He writes:

Over the past few weeks I’ve been working on some improvements and extensions to my Power Glove 20th Anniversary Edition. On the tech side of things, I replaced the ugly 9V battery I was using with a low-profile, rechargeable Lithium-Polymer battery. I’ve updated the steps in the Instructable with new pictures and instructions.

As a bonus for Maker Faire attendees, I’ve finished adding Power Glove support to our most popular Blurst game, Off-Road Velociraptor Safari! I recorded a demo video to show it off.

More:

Updated Power Glove with Bluetooth and Arduino

MIDI step sequencer with Arduino

[warning: volume spike around 1m35s]

After running into some trouble assembling a Gorf sequencer kit, Larsby decided to design his own -

I wanted a bigger display, so that I could fiddle around with different setups and functions. I wanted rotary encoders (endless) so that I would need fewer then 1 per step. I wanted MIDI-out, to you know, control stuff.
Luckily for me I have a interaction-designer-musician friend that I can discuss with. So we iterated the idea back and forth. He's suggestions where all great, but I didn't take them all. Had this been a mass-market product I where going to try to sell I'd probably taken them all, right now I only took the ones that I wanted!

Relevant code plus links to the resources he used for the project can be found on his site.

In the Maker Shed:

Arduino Family
Make: Arduino

May 25, 2009

Todbot's Atmel-Arduino pin-outs sticker

MAKE contributor Tod E. Kurt created this sticker, with all of the pin assignments labeled, to go on top of the ATmega chip.

Arduino chip sticker label

May 20, 2009

Glowing button cycling jacket

One of the most common DIY LilyPad Arduino uses seems to be in bike wear. I don't know if it's because bike riders like electronics or what, but here's another one! Instructables user kempton made this very attractive cycling jacket with LED buttons, and wrote up a detailed step-by-step tutorial for making your own, complete with turn signals.

More:

May 19, 2009

In the Maker Shed: Pre-order the BlimpDuino kit by Chris Anderson

The BlimpDuino is the latest creation by Chris Anderson of Wired Magazine and Jordi Munoz of DIY Drones. This amazing kit will make its debut at Maker Faire Bay Area on May 30th & 31st. Be sure to stop by the Maker Shed to see BlimpDuino flying all around.

Features

17 grams, with ultrasonic and IR sensors.
Controls two motors and one vectoring servo.
Built-in RC compatibility (can read two RC channels--throttle and steering)
Designed for a 7.4v LiPo battery; has an automatic power cut-off at low voltage to protect the battery

The BlimpDuino kit is a very low cost, open source, autonomous blimp. It consists of an Arduino-based blimp controller board with on-board infrared and ultrasonic sensors and an interface for an optional RC mode, a simple gondola with two vectoring (tilting) differential thrusters, and ground-based infrared beacon.

We will begin shipping the week of May 25th.

In the Maker Shed: BlimpDuino kit by Chris Anderson

Auduino space groove

Denkitribe posted this rather sweet demo of Tinker.it!'s Arduino based sound synthesizer project, appropriately titled "Auduino". While some delay/reverb+accompaniment have definitely been added, the sweet sounds of granular synthesis still shine through -

I built one and plugged a stylus controller which was ripped from Gakken SX-150. It works very well. Its sound is dry and crispy, but I think it is not bad for $50. Want one? Do It Yourself!

Because the project uses Arduino's built-in PWM feature, litle additional hardware is needed - definitely have to bump this one up a few notches on my to-build list. Source is available on Google Code.

In the Maker Shed:

Make: Arduino

May 18, 2009

Making the Arduino EMF detector

Aaron ALAI's EMF detector project looked so simple and fun I had to give it a try. After putting it together, I liked it so much that I went and built a more 'meter-like' version using an LED bargraph -

Arduino code is available here.

As I mention in the vid, I was a bit concerned the wire probe might be affected by the LEDs I mounted nearby -- but from what I can tell, it still seems (relatively) accurate. A short walk around my workspace even revealed a few items I'd forgotten were plugged in - helpful! I'm sure there are many ways in which this project could be used/repurposed/modded - I plan on converting the readings to sound when I get the chance. If you make one be sure to submit a pic to the Flickr pool and/or send us a link.

Snoozy sloth, the breathing plushie

Justin Blinder, a student at Parsons, created this plushie doll that clings to you and snoozes, like a living critter:

Snoozy the Sloth is a plush toy with a respiratory system. He sleeps while clinging onto a user, allowing them to feel both the contraction and expansion of his chest, as well exhaling of air from his mouth. The main concept behind snoozy is to create an intimate, yet passive, toy interaction that relaxes and comforts a user, through the tactile experience of steady breathing patterns.

Snoozy the Sloth

May 15, 2009

Sigh Collector

This is a well executed project and fun, poignant art piece: the Sigh Collector by Michael Kontopoulos. He writes:

These are instructions for building a home monitoring system that measures and 'collects' sighs. The result is a physical visualization of the amount of sighing, for personal use in a domestic environment.

The project is in two parts. The first part is a stationary unit, which inflates a large red air bladder upon receiving the appropriate signal. The second part is a mobile unit, worn by the user, which monitors breathing (via a chest strap) and communicates a signal to the stationary unit wirelessly when a sigh is detected.

Arduino robot platform

This looks like a huge robot army of fun!

Four wheel drive robot with dual h-bridges controlling four motors for differential steering. ATmega168 microcontroller running at 16mhz. Arduino shield compatible headers to allow for stackable shields and protoboards. Zigbee socket for wireless bootloading or USB for wired programming. Quadrature encoders on each side for dead reckoning.

Rampage Robotics!

There is much promise in a project like this. It should be loads of fun to see what the next step holds for us.

Projects always look better when they're in the MAKE Flickr pool!

Press & hold functionality with Arduino

From the MAKE Flickr pool

Flickr member jmsaltzman coded some extra functionality into a basic momentary pushbutton -

To get more functionality out of a single button and to add a "hidden" mode, I extended button debouncing logic to allow for click as well as press+hold. The green LED toggles when the button is clicked, and the red LED toggles on press and hold. In this example, the hold time is 2 sec.

Of course this technique comes in very handy when your project is running low on available pins. Arduino compatible code is available in the comments of his blog entry.

May 13, 2009

Arduino Mega meets the Touchshield

Touch screens are everywhere these days. The Maker Shed has a TouchShield Stealth for use with the Arduino environment. Now that the Arduino Mega has been released the bigger TouchShield Slide is also available. Liquidware Antipasto posted some great code to help you get started with your own touch screen project:

I'm making the TouchShield tell the Arduino to turn on an LED. The Arduino code is compatible on the Duemilanove and the Mega. The TouchShield code is compatible on the Stealth and the Slide.

In the Maker Shed:

More about the Arduino Mega in the Maker Shed

Programming AVRs with Eclipse

MightyOhm points out this tutorial covering some basic setup for using the Eclipse programming software with AVR chips. If you're not familiar, Eclipse is a cross-platform open-source development environment that uses plugins to expand compatibility with different coding languages. The AVR plugin can be found here and the software can even be configured to make use of the Arduino library.

I was actually just discussing Eclipse + AVR/Arduino with my brother just last week - but have yet to give it a go myself. So I'm wondering - any code-makers out there using the combo? If so, please give your take in the comments.

Bus-tracking system at Georgia Tech

Students at Georgia Tech developed this Arduino-based, solar-powered bus-tracking system that shows students where the buses are on campus at any given time so they can decide if it's quicker to wait for the bus or walk to their next class. The site for the system has lots of information and media on the system's construction and implementation.

WaitLess Bus Tracking System

Doorbell phone

MAKE subscriber Bryan Zimmer had a cool Bakelite antique telephone and no landline, so he decided to press it into service as a wireless doorbell for his apartment. He writes of the project:

This project combines a battery-operated doorbell, antique phone, Arduino, and subscriber line interface circuit (SLIC) to make a wireless doorbell. Readers are taken through basic phone restoration, creation of a custom doorbell button transmitter, modification of the receiver, workings of the SLIC, and description of the Arduino code. Readers must know how to read a schematic, but soldering and other electronics knowledge are optional. This project will be of interest to those who like to customize their home or office, people who like to repurpose antiques, and those who have been wondering how to ring a phone with an Arduino or other microcontroller.

Doorbell Phone

Galvanic skin response readings via Arduino

Here is another great project from Che-Wei Wang. This time he isn't counting to a billion, but instead he is monitoring your Galvanic skin response. It looks fairly simple to construct, and the code is available from his web site.

Galvanic skin response readings are simply the measurement of electrical resistance through the body. Two leads are attached to two fingertips. One lead sends current while the other measures the difference. This setup measures GSR every 50 milliseconds.

This processing sketch samples your galvanic skin response readings every 50 milliseconds and draws the corresponding graph. Peaks and valleys are highlighted and an average line is drawn to make the GSR readings more legible.

More about Galvanic skin response readings via Arduino

In the Maker Shed:

In the Maker Shed: Truth Wristband Kit

May 12, 2009

Light-based Arduino-powered player piano

Gijs writes:

This sequencer scans images, and plays the image as midi notes. It uses LDRs to measure the gray-scale of specific point of a image, and triggers midi notes from a selected threshold. When the threshold is reached the velocity will be set by the darkness at that point. the darker point the higher the velocity will be. The sequencer has 24 LDRs that are read into 3 ADC ports of the arduino, via 3 4051 ics.

Via Adafruit.

Beginning robot walker

ArduinoFun has a how-to on building this simple two-servo Arduino walker that's a great starter robot project for kids. The body and legs were ordered from Ponoko. Shawn of ArduinoFun writes:

My son is 11 and daughter is 5 and they really enjoyed doing this. I was amazed at my daughter already thinking of new ideas to do with the servos. For example she wants to put a princess doll on a servo and use the Arduino to make a music box.

Arduino Simple Walker

Arduino Home | Next >

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