Head Mouse – Game controller or disability aid using Arduino

My kids wanted to have a head controlled mouse for playing Minecraft - they wanted to move their heads and have the field of view move. I decided that was a challenge I couldn't resist, so I decided to build a movement controlled mouse using an arduino and a gyroscope chip. Components A-Star 32U4 Micro - a tiny Arduino Leonardo clone LSM9DS0 Breakout board - a combined gyroscope, accelerometer and magnetome ...

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Talking Arduino Heart Rate Monitor

My partner and I wanted to make heart rate monitor that does more than simply measure a user's heart rate. Our heart rate monitor talks! Each button gives a verbal description of its functionality and makes the measurements visible on the screen. This monitor will save the last four readings, display them, average them, and also offer some inspirational quotes! Step 1: What you need Arduino Uno Pulse Sensor ...

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FabECG: a simple electrocardiogram board

Technologies for rudimentary physiological sensing are getting cheaper and easier to implement. Consider, for instance, these non-contact sensors from UCSD which can be used to take an EEG through hair or an ECG through a T-shirt! One can even make a simple oscilloscope to digitize, store and view the signal using only a Tiny45 micro-controller and a laptop: tiny45 oscilloscope Cool general-purpose commerci ...

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Brain-Computer Interface

Introduction Our goal was to build a brain-computer interface using an AVR microcontroller. We decided that the least invasive way of measuring brain waves would be using electroencephalography (EEG) to record microvolt-range potential differences across locations on the user's scalp. In order to accomplish this, we constructed a two-stage amplification and filtering circuit. Moreover, we used the built-in ...

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Breathalyzer using an Arduino

What is a breathalyzer you may ask? It is a device for estimating blood alcohol content (BAC) from a breath sample.In simple terms it is a device to test weather a person is drunk or not. As the title suggests it runs on the arduino.Our breathalyzer uses the MQ-3 alcohol sensor from sparkfun.It is a simple and fun to do project. This instructable explains how to create your own breathalyzer , making a shiel ...

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DIY navigation device for blind people using Arduino and Android smart phone

In this project you can cover your eyes and let your smartphone navigate you to avoid obstacles, the application is mainly a DIY navigation device for blind people. I knew that 1Sheeld is about to launch a new text to speech shield, and so I contacted them to let me use it in this project and they accepted since I'm one of the early Kickstarter backers :D By using 1sheeld I made the text to speech part by o ...

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Sonar For The Blind using Arduino

This is a project I’m calling Tacit. No, I didn’t bother making an awkward backronym for it, it just seemed like an appropriate name that’s a lot shorter (though less descriptive) than “Hand-Mounted Haptic Feedback Sonar Obstacle Avoidance Asstance Device”.  It measures the distance to things and translates that into pressure on the wrist. It’s wrist mounted and senses objects from about 1 inch (2 cm) to 10 ...

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Ultrasonic Combination Switch using an Arduino

Time for a follow-up to the Single Button Combination Lock by creating another oddball type of switch/lock. To activate this switch we make use of a Parallax Ping))) Ultrasonic sensor, an Arduino-style board and some other hardware – to make a device that receives a four-number code which is made up of the distance between a hand and the sensor. If Arduino and ultrasonic sensors are new to you, please read ...

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Homemade Arduino Friendly Pulse Sensor

I saw the Open Hardware Pulse Sensor at thought I'd try to make it at home.  Took me awhile, but here's my bumbling process. Step 1: Pulse Sensor -- Overview I've been working on re-making the the Open Hardware Pulse Sensor so it'd be "easy" to send off to OSHPark and make at home. I'm not sure but I think I started this project in March (2013) and I've just now finished it. The bit of encouragement I neede ...

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Occupational Therapy Dexterity/Cognitive Aid

The Need:  Occupational Therapy Device Occupational therapy is used in treating Traumatic Brain Injury during many phases of recovery and rehabilitation. As the patient's condition improves, occupational therapy helps them regain skills ranging from basic self-care, to complex cognitive skills such as memory and problem solving. Occupational therapy can be helpful for individuals of all ages. Source:  http: ...

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Smart Heart Monitor

No longer will you have to pay hundreds of dollars for a heart rate monitor! The Smart Heart Monitor will be able to do all of your cardiac measuring needs for you! The Smart Heart Monitor measures the user's heartbeat using an LED and a very sensitive photo-resistor attached to the user's ear. A light will blink to the user's heartbeat, and the program will calculate the user's beats per minute. The BPM wi ...

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