Sensor – Transducer – Detector Projects

The Breath-o-Matic Using Atmega32

Introduction Let us introduce the Breath-o-Matic alcohol sensor. The Breath-o-Matic is an electronic, non-invasive method of measuring a human’s blood alcohol content (BAC). Its elegant, yet discombobulated design embodies a cheerful mix of mechanical and semiconductural components. Simply blowing into the mouthpiece causes the Breath-o-Matic to automatically begin taking a sample of your own foul […]

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Stationary Helicopter Using Atmel Mega32

Intro Summary Thinking about what a CDE (culminating design experience) should be, we devised a project that combines the microcontroller programming principles learned in ECE 476: Microcontroller Design with the control theory concepts learned in ECE 472: Feedback Control Systems to create an academically viable stationary helicopter. The device consists of a lever with a

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INFRARED TRACKING SYSTEM USING ATMEGA32

Introduction Infrared (IR) Our project is an infrared (IR) tracking system. A beacon, placed on the object to be tracked, continuously emits infrared signals in all directions. The signals coming from the beacon are detected by 2 IR receivers mounted on 2 stepper motors, which rotate independently and are in separate locations. The direction each receiver

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Vocal Trainer Using Atmel Mega32

Introduction With the Vocal Trainer, expect to resurrect your singing, and ultimately become a vocal expert! The purpose of this Vocal Trainer, designed by Anderson Lin and Jerry Chiang, is to train people in singing accurate pitches, and ultimately become a vocal expert. Also, the vocal trainer has other features such as tuning, in which

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Frequency Division Multiplexing for a Multi-Sensor Wireless Telemetry System Using Atmel MEGA32L

Our System acquires several different sensor inputs, FM modulates each level by manipulating Direct Digital Synthesis increment values, transmits the resulting signal on a commercial FM radio band, and receives and decodes the original sensor levels. Introduction The problem of encoding multiple input signals into a finite bandwidth space is one that is common in

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Gauntlet of uComputation using Atmel Mega32

Introduction  The project involves an experiment in implementing a human-computer interface by tracking finger and wrist motions. Brief: “Ever wish you could control a computer just by moving your fingers or your hand?” We did. The primary goal is to design and build a functional prototype implementing an intuitive interface for a user to interact

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Head-Controlled Keyboard And Mouse using ATmega32

Easy Input is a head-controlled keyboard and mouse input device for disabled users. The system uses accelerometers to detect the user’s head tilt in order to direct mouse movement on the monitor. The clicking of the mouse is activated by the user’s eye blinking through a reflective sensor. The keyboard function is implemented by allowing

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USB Sensors with ATtiny Microcontrollers

Working with embedded electronics, you will eventually ends up with some sensor between your hands, here I’ll show how to make a graph out of it! This project involves a light sensor, a tiny 8-pin AVR USB key with the V-USB stack, a GNU/Linux system and rrdtool. Sensors If your are working with some digital

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