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Virtuoso: A Touchscreen Music App Using Atmega644

n our final project, we designed an electronic multifunction instrument with a LCD touch screen and a microphone. The user can play three kinds of instruments on it -- xylophone, flute and piano. Each instrument has a different interface and timbre. The piano part has a record/replay function which can echo the song previously played on it. In addition, the system has another function to teach the user to p ...

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NFC Secure Data Storage Using Atmega644

Summary "Enabling secure storage capabilities for sensitive data through standardized methods of encryption or multiple agent distribution." Our group chose to implement a secure form of storage for sensitive information such as passwords or identification numbers. This is modeled after Shamirs secret sharing algorithm. It allows us to distribute information regarding the secret key among several agents. In ...

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Ultrasound Gesture Detection Using Atmega644

Introduction In this project, ultrasound around 24kHz was used to detect movement near an object. Waving a hand or other solid object near the source of the ultrasound (speaker) causes a shift in the frequency of the sound, which is then detected by a microphone. We detected characteristic shifts in frequency to determine whether motion was towards (push) or away from (pull) the microphone. Two modes of vis ...

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Wireless, voice-controllable, household system Using Atmega644

Motivation We design a smart home control system which allow people control their home devices by voice command at home. This is a wireless, voice control system. People could control almost all the facilities at home including lights, fans or even back ground music. Right now, the basic function of lights control, fan control and music control have all been implemented. Except for basic turning on and off ...

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Solar Powered Pulse Oximeter and Heart Rate Meter Using Atmega644

Introduction Pulse Oximeter is a non-invasive medical diagnostic device used to detect the oxygen saturation of the blood. Heart rate meter detects the number of beats per minute of the patient, normally referred to as bpm. The pulse oximeter is designed using an infrared and a red LED, projected alternatively on the finger and detection of the transmitted light by a photodiode/phototransistor. The output o ...

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RoboSLR Using Atmega644

Introduction Robo-SLR provides a remotely controllable stand for a Canon EOS 550D DSLR camera, allowing for adjustable tilt and pan functionality along with the ability to remotely view through the camera's viewfinder and take photos. An ATmega1284 microcontroller is used to control camera functions as well as tilt and pan over a wireless bluetooth connection to a PC. This allows a photographer to easily ph ...

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Radio Station Tracker Using Atmega644

Our project is inspired by the commercial product, PicoDopp, which uses a similar scheme for foxhunting. Foxhunting is a contest where participants try to locate a transmitter, called the fox, simply by monitoring the signals it transmits. Typically this is done using highly directional antennas — antennas that only receive signals from one direction. However, over short distances, especially within distanc ...

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