Line Follow Robot using ATmega16

Line follower is a machine that can follow a path. The path can be visible like a black line on a white surface (or vice-versa) or it can be invisible like a magnetic field.
Why build a line follower?
Sensing a line and maneuvering the robot to stay on course, while constantly correcting wrong moves using feedback mechanism forms a simple yet effective closed loop system.As a programmer you get an opportunity to ‘teach’ the robot how to follow the line thus giving it a human-like property of responding to stimuli.

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Filed Under: microcontroller

LEDComm: Bidirectional Communications using LEDs

A novel microprocessor interface circuit is described which can alternately emit and detect light using only an LED,two digital I/O pins and a single current limiting resistor. This technique is first applied to create a smart illumination system that uses a single LED as both light source and sensor. We then present several devices that use an LED as a generic wireless serial data port. An important implication of this work is that every LED connected to a microprocessor can be thought of as a wireless two-way communication port. We present this technology as a solution to the “last centimeter problem”, because it permits disparate devices to communicate with each other simply and cheaply with minimal design modification.

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Filed Under: LED, microcontroller, Radio, Seminar Reports And PPTs

Obstacle Avoiding ROBOT

Robotics is part of Todays communication. In today’s world ROBOTICS is fast growing and interesting field. It is simplest way for latest technology modification. Now a days communication is part of advancement of technology, so we decided to work on ROBOTICS field, and design something which will make human life simpler in day today aspect. Thus we are supporting this cause.
This ROBOT has sufficient intelligence to cover the maximum area of provided space. It has a infrared sensor which are used to sense the obstacles coming in between the path of ROBOT.

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Filed Under: microcontroller

Programmable Home Security Alarm System

In this project we design low cost high performance programmable home security system using few LDR's as an input sensors. When above sensor(s) get triggered system may dial the user specified phone number (using build-in DTMF generator) and activate the high power audio alarm and lights. All the parameters of DTMF generator, audio alarm and light interface are programmed through the RS232 serial interface.Current firmware of this system presents interactive control system through the RS232 interface. This control system consist with the menu driven configuration options, self tests, system report generators, etc.This system also contain 5W (with 4Ω speaker) audio alarm with three selectable tone configurations, which include Police siren, Fire engine siren and Ambulance siren.

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Filed Under: microcontroller, Radio

Remote Operated Spy Robot Circuit

Here is a remote operated spy robot circuit which can be controlled by using a wireless remote controller. It can capture audio and video information’s from the surroundings and can be sent to a remote station through RF signals. The maximum range is 125 meters. It overcomes the limited range of infrared remote controllers. This robot consists of mainly two sections. They are explained in detail below.

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Filed Under: microcontroller, Motor

Wireless Glove Commander

The design for a Wireless Glove Commander,Utilizing innovative techniques,hand movements translate user input,allowing for a highly intuitive user interface.A wireless transmission system mechanically detaches the operating from the commanding device.The design is successfully implemented and positioned for use in entertainment and scientific sectors.

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Filed Under: microcontroller, Motor

Bomb Game

"Should I cut the blue wire... or the red...?"
This is a very common phrase in many movies when the action hero has a bomb in front of him with little time left and he has to choose which wire to cut and stop the bomb from exploding saving millions of people.
This game is just that... a count down timer and 4 wires of different colors.The player has to remove each wire until it deactivates the bomb.

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Filed Under: hobby project, LED, microcontroller

Cellphone Operated Land Rover

Conventionally,wireless-controlled robots use RF circuits,which have the drawbacks of limited working range,limited frequency range and limited control.Use of a mobile phone for robotic control can overcome these limitations.It provides the advantages of robust control,working range as large as the coverage area of the service provider,no interference with other controllers and up to twelve controls.
Although the appearance and capabilities of robots vary vastly,all robots share the features of a mechanical,movable structure under some form of control.The control of robot involves three distinct phases: perception,processing and action.Generally,the preceptors are sensors mounted on the robot,processing is done by the on-board microcontroller or processor and the task (action) is performed using motors or with some other actuators.

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Filed Under: microcontroller, Mobile

College Automation

Introduction

We are going to build a new device that would help the facility saves energy. We found out that currently College classes and labs having their electrical appliances on days and nights, which waste a considerable amount of energy. Among of these, the light and the air-conditioning system use most of the power in the building. So, we are aiming to build a device that will install in a room which can automatically turn off window air-conditioners and lights by users’ preference.

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Filed Under: microcontroller