74*245 Motor Driver

H-Bridge Driver

Simple PWM Gen.

Handy Method Measuring RPM

Measuring RPM via Photo reflector

Introduction to Robotic

DC, Stepper,and Servo Motor

Microcontroller Tutorial

Computer Interface
Tutorial
.............more links

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Possible Improvements:

-Use of differential steering with gradual change in wheel speeds.
-Use of Hysteresis in sensor circuit using LM339
-Use of ADC so that the exact position of the line can be interpolated
-Use of Wheel Chair or three wheel drive to reduce traction.
-General improvements like using a low dropout voltage regulator, lighter chassis etc

References and Resources

Books:
Programming and Customizing the AVR Microcontroller - Dhananjay V. Gadre
Parallel Port Complete - Jan Axelson

Links:
Atmel Corp.
Makers of the AVR microcontroller
http://www.atmel.com
AVRbeginners.net
http://www.avrbeginners.net/
AVR assembler tutorial
Tutorial for learning assembly language for the AVR-Single-Chip-Processors
AT90Sxxxx from ATMEL with practical examples.
http://www.avr-asm-tutorial.net/
One of the best sites AVR sites
http://www.avrfreaks.net
WinAVR
An open source C compiler for AVR
http://sourceforge.net/projects/winavr
PonyProg
A widely used programmer. Support for newer chips is added periodically. Can also
program PICs and EEPROMS
http://www.lancos.com/prog.html
Basic Electronics
http://www.kpsec.freeuk.com/
Williamson Labs
Nice animated tutorials, articles and project ideas.
http://www.williamson-labs.com/home.htm
Small Robot Sensors
http://www.andrew.cmu.edu/user/rjg/websensors/robot_sensors2.html
Robotics India
An Indian site devoted to robotics. Must see
http://www.roboticsindia.com/
Seattle Robotics Society
http://www.seattlerobotics.org/

Line Follower ROBOT
Award winner from VingPeaw Competition 2543, the robot built with 2051, L293D, and
four IR sensors. Simple circuit and platform, quick tracking and
Easy to understand program using C language.
http://www.kmitl.ac.th/~kswichit/LFrobot/LFrobot.htm
Tools: AVR Studio
For writing code in assembly and simulation of code. Current versions has AVR-GCC
plug-in to write code in C.
Compilers: IAR, Image Craft , Code Vision AVR, WinAVR
Programmers: Pony Prog, AVR Dude, AVRISP and many more.
Evaluation Boards: STK200, STK500 from Kanda Systems

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