Detecting colour of an object can be an interesting and useful electronic application. It can be realized using a colour sensor like TCS3200 and a general purpose microcontroller like AVR ATmega32. TCS3200 Colour Light to Frequency Converter Chip TCS3200 chip is designed to detect the colour of light incident on it. It has an array […]
Interfacing TCS3200 Colour Sensor with AVR ATmega32 Read More »
Introduction In this digital age, new interfaces for musical expression provide much broader musical possibilities than have ever existed before. There is a constant quest to be in harmony with one’s instrument so that music can flow freely from the imagination and take form effortlessly. This sparks an interest in new ways to interact with
A Wearable Wireless Sensor System using ATmega644V Read More »
If you’ve ever tried to hook up a 3.3V sensor to a 5V micro, you know what I’m talking about – connecting these two can be a problem! There are several ways in which a 3.3V device can be safely connected to a 5v microcontroller. This tutorial will detail a few ways in which this
Sensor Interfacing using ATmega8 microcontroller Read More »
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 sensor
USB Sensors with ATtiny Microcontrollers Read More »
The purpose of this project was to create a simple, portable device that would periodically read sensors and then store the sensor data so it could be retrieved later. The result is the HexiLogger, “hexi” because it can support up to six different sensor inputs and “logger” because it will store the input data on
HexiLogger, an Arduino based data logger using ATmega328 Read More »
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
Head-Controlled Keyboard And Mouse using ATmega32 Read More »
Introduction: Due to the increasing need for securing data and places, the biometric authentication industry is seeing large market growth. We decided to build a scalable, small, and efficient device that can be used to secure doorways throughout a complex. We use a FingerPrint Cards capacitance based fingerprint scanner as our capturing device. This data
Networked Biometric Authentication Using Atmega32 Read More »
Introduction For our Final Project in ECE 4760, we built a controller that interfaces with a computer running a PowerPoint display through USB. The device can control slide transitions based on hand motions or button presses as well as play MP3 files when it detects people near the display. We chose to do this project
Motion Sensing PowerPoint Controller Using Atmega644 Read More »
Introduction “A wireless mouse unit that requires no flat surface by using ultrasonic positioning.” For our ECE 4760 final project,we have designed a surface-less mouse interface using ultrasonic transmission as our final project in this class. The idea is to have a ultrasonic transmitter as a mouse, which represents the mouse’s position in space, with
The Air Mouse Using Atmega1284 Read More »
A couple months ago I came across two great instructables. The first was the Garduino, an arduino controlled garden to help you grow plants at home. The second was the Tweet-a-Watt, a project that teaches you how to monitor your home power usage using Xbees and Twitter. I read about both these projects here at Instructables and
Garduino Upgrade, Now with more Twitter! Using Atmega Read More »
