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Make: Online : Collin's Lab: Infrared heart sensor
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).
$10 Arduino Beatbox (remake of the $5 Picaxe Beatbox)
"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"."
C i b o M a h t o . c o m » Controlling a clock with an Arduino
Update: The Arduino system is fine; the only thing you have to take into consideration is the 9.54 hour rollover event, which Rob Faludi has provided an excellent solution for here. I made up a nice little over-analysis of the issue, available here.
I have been wanting to make a variable-speed clock for a while, so this weekend I picked up a cheapish clock unit (thrift stores are a great source!), and played around with using the Arduino to control it. In summary, I was able to get everything going, but there are some issues with the Arduino software that are going to prevent making it a really accurate clock. Explanation, source code after the break.
The Lucas Eckels Blog » Larmie, the Arduino Alarm Scheduler
Monday, March 2, 2009
Larmie, the Arduino Alarm Scheduler
When I heard about Libelium’s Arduino Hacking Life contest, I knew it was time for me to finally solve one of my daily annoyances — setting the alarm clock.
Every night, the alarm gets set to a different time. Sometimes there’s an errand in the morning, sometimes an early meeting. On weekends, the alarm usually isn’t needed, unless something’s going on. And then in the morning, I need to set the clock again for my wife’s own set of daily scheduling variables.
Enough! Why should I need to deal with this? Why should I need to stand there pressing buttons time and time again? Why can’t I set my alarm clock with the rest of my schedule — in the calendar? Larmie solves all these problems.
MAKE: Blog: New library teaches Arduino to speak iPod
Another useful piece of software from Flickr friend recotana - this time it 's a handy Arduino library for controlling iPod via appropriate connector. Looks to be quite an easy method for adding audio to a project considering the near omnipresence of iPods these days. The documentation is written in Japanese, but you can likely get your bearings by reading the example project included with the library.
Arduino Fortune Teller
introArduino Fortune Teller
This project gives the user a fortune and lucky number like from a fortune cookie. This was made as a Christmas present.
MAKE: Blog: SSerial2Mobile - SMS library for Arduino
This library implements the Software serial Arduino library to establish a serial connection to a Mobile phone. The methods methods hides the AT+ commands from the user allowing messages to be sent by passing the method on a phone number or email and the message.
imagitronics.org » R/C Moon
I first saw this R/C Moon Phase light at ThinkGeek some time ago and decided it would be ripe for hacking. Essentially, the R/C Moon Phase light is a nightlight that comes bundled with an infrared remote control. The controller allows the user to change the moon’s current phase with the press of a button - or automatically cycle through the standard phases of the moon (ie. waning crescent, waxing crescent, full, etc…) which it accomplishes with six LED’s and an impressively designed outer shell.
Bats Have Feelings Too
Sonar garment to assist the visually impaired with navigating the built environment. Made from Lilypad main board, LV-MaxSonar ultrasonic range finder and a LilyPad vibeboard. The range finder can be set to locate a solid object X distance in front of the user and turn the vibeboard on alerting the user to stop before walking into a solid object.
This project was inspired by attending the unveiling of the award winning facilities for Anchor Center for Blind Children designed by star architect Maria Cole. During my visit one of the former students came up to speak with me because she could 'see' what I was wearing (a confetti fabric coat) and she too wanted to design clothes. Just goes to show ya never know where the next project is coming from!
Arduino Etch-a-Sketch
After getting an Arduino Deicimilia board, I was really excited about making all sorts of neat things. The Arduino is an open-source (hardware and software) tool for connecting computers and the real world. In essence, it is a microcontroller with various inputs and outputs, which can be programmed on the computer, and then used to run a variety of things. The Arduino acts as the brain to any project or installation. For more info on Arduino, look here. The first thing I made (on a suggestion from Katie) was an etch-a-sketch.
Lab3 - Labor für experimentelle Informatik
This is an experiment to show how some realtime audio processing can be done with the Arduino. The first set of examples alter an incoming audio signal and put it back to an audio output. We achieve effects like Reverb, Phasor, Flanger or Ringmodulator. The second set of examples are outputting computed waveforms like Sinewave, Bell and Xylophone sounds.
Building an Arduino-based laser game, Part 1: Arduino basics
Arduino is an inexpensive, easy-to-use electronics platform. The entire platform, both the hardware and the software, is completely open source, and the language is loosely based on C/C++. Arduino was built for makers, tinkerers, and artists who want to take the plunge into creating interactive physical objects. This three-part series starts with basic Arduino hardware and uses it to create an interactive laser game called "'Duino tag," where players can play tag using devices built nearly from scratch. Here in Part 1 of this "Building an Arduino-based laser game" series, we craft basic experiments that prepare us for and are a part of 'Duino tag.
.DIYtar.
Which is the worlds sexiest and awesomest instrument? yes, the keytar. But what if you want special features on it and are to cheap to buy one of ebay? That is what I am. Cheap and special, that is why I made my own.
A simple light to sound converter - with video !
This a simple circuit I designed and built to convert light variations into sound. It is fun to listen to the weird sound emitted by the light of remote controls, light bulbs, TV screens and any light source.
MAKE: Blog: Arduino-controlled two-motor walker
Spotted on the MAKE Flickr pool, this Arduino-controlled two-servo walker, demo'd at the recent Dorkbot Bristol. Looking at the images close up, you can see this is an insta-bot, made with just the two servos, some coat hanger, and zip ties.
Garduino: Gardening + Arduino
Garduino is a gardening Arduino. So far, Garduino:
-Waters my plants whenever their soil moisture level drops below a predefined value.
-Turns on grow lights, but only when it's dark out and only long enough to make the plants get 15 hours of total light (sunlight + supplemental light) daily.
-Alerts me if the temperature around the plants drops below 50 degrees.
This is the first grow-light and auto-water setup i know of that takes into account natural sunlight received and soil moisture level before turning on water / light.
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