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Magic 8-Ball Pumpkin

Posted February 24, 2014 by Chris

"The Magic 8-Ball Pumpkin was my 2012 entry in the Rosenwinkel pumpkin carving competition….My entry this year was a working Magic 8-Ball, powered by an Arduino Mega and a set of sensors to detect motion. A gyroscope and an accelerometer are used to detect when the 8-Ball has been picked up and/or shaken, while an IR receiver is used to power on or off in response to a remote control. "

ECG + Pulse Oximeter

Posted February 19, 2014 by Chris

"The goal of this project is to collect heartbeat information on a computer with minimal cost and minimal complexity. I accomplished this with fewer than a dozen components. It serves both as a light-based heartbeat monitor, and an electrocardiogram (ECG) to visualize electrical activity generated by heart while it contracts."

Reflectometer Mini-Project

Posted February 18, 2014 by Chris

"LED Reflectometer is a device which used to measure this property. Mainly it transmits pulses of LED light into the environment, and monitors the strength of the LED light reflected back from objects nearby. This instrument can transmit different pulses and can detect the reflected signal and can show the difference between those two signals."

Team 8 – Rescue Robot For Extraction

Posted February 14, 2014 by Chris

"The purpose of the prototype was to demonstrate the feasibility of a small, highly maneuverable search and rescue robot. As such, the completed prototype was successful. Capabilities include a ground speed of 10 inches per second, battery life of 50 minutes, wireless range of between 50 and 150 feet, weight of 14.5 pounds and the ability to climb stairs."

YAHMS: Temperature Probes

Posted February 8, 2014 by Chris

"My wireless temperature probes work by using an Xbee module to transmit readings from a TMP36 down to the Arduino base station…these take a voltage of around 3-5.5V as input and will output a voltage between 0-2.7V to indicate the temperature, which can be from -40 – 125°C."

The Gloves Project DIY

Posted January 30, 2014 by Chris

"The Gloves are a cutting edge experimental gestural music ware being developed today for the purpose of Imogen Heap’s studio and stage work. Using a unique gestural vocabulary, motion data-capture systems, and user interfaces to parameter functions developed by Imogen Heap and her team, artists and other users will be able to use their motion to guide computer-based digital creations."

The Tricorder Project Mark 2

Posted January 29, 2014 by Chris

"The Science Tricorder Mark 2 was a wonderful adventure of discovery to develop. It’s my pleasure to be able to share it with you…..The Science Tricorder Mark 2 was planned during Spring 2008, and actively developed starting August 2008 until December 2010 — largely over my fourth and early fifth years of graduate school."

Capacitive Touch Sensing Example With Arduino

Posted January 28, 2014 by Chris

"There are many methods capacitive sensors can be produced. A simple one way to form an on-off output is by using two layers and a spacer in between. Through a voltage to conductive objects causes positive and negative charges to collect on each object."

Polygraph Prototype (Final Design Project)

Posted January 20, 2014 by Chris

"For our design project we constructed a polygraph which measured pulse rate, GSR, and breathing rate, and performed a discrete cosine transform on the subject’s voice in the hope of measuring a deviation in the fundamental frequency. The measurements were sampled, analyzed, and transmitted to a computer for further analysis using an ATMEL AVR Mega32 microcontroller."

Theremin as a Capacitive Sensing Device

Posted January 18, 2014 by Chris

"Here we show a little Theremin module which plugs onto a Arduino Board that gives out the tune to a speaker or puts out the tune as control signal like MIDI, Servo etc. We were using this device not only as a musical instrument, various kinds of proximity sensors, pointing devices or as interface in combination with Processing, Max or Pd have been build with this technique."