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line follower

Line follower on changing contrast

I am making a line follower using an ATmega8

Now the problem is the testing of line follower, there is a black line over a white surface and then after a while, there is a white line over a black surface....

The robot will make a start on any of the corners...so it is  impossible to tell whether it is a white line or black line...and also in middle, the contrast will change...

I have to make the program in such a way that it will detect the change in contrast and continue its work

I thot this can be done in programming part..so posted here...

I haven't posted a Lego robot or a line follower, so I thought I'd do both together. Line followers have been done to death. I've blown the dust off my Lego RCX. … Read more

Line Follower using Atmega8

Hi all, I am new here and about to make a debut in robotics with a simple line follower robot.

I have chose AVR ATmega8 as my microcontroller because I found out that we can chose which pins we want as input and which ones as output. So this seems pretty cool for a microcontroller. Also i figured out that it is cheaply available here.

this was my first robot. though it was a kit and i didnt have to create chassis myself, it taught me a lot. after finishing the book and the exercises in it i … Read more
Simple Line follower, with additional ability to stop when objects are detected in front of it and turn around when the end of a line is detected.
Using a
I built this robot for a University course on C Programming, and later (after my assessment, although before the end of the course) added the tank tracks to replace … Read more
Dead reckoning, line following, maze solving
Using a
I'm building this fast robot for the upcomping LVbots mini-competition, which will include dead-reckoning and looped maze-solving contests.  I'm using: Read more
can follow a black line on a flat lighter surface
Using a
This is a walk through for a simple line follower that can follow a black line on a lighter surface, i used black insulating tape on the floor. The robot can be … Read more

The new beginning

Hello Robot-creators!

It has been a long time since I was last active at this site... Mainly because I've been busy making stuff like this:

                                                           Billede187LMR.jpg

(Bidirectional 16-bit databus btw).

It's quite sad actually, now that I see all those cool robots that you've come up with, and all I have is stuff like that on the pictur above. I want to make something useful! Or at least entertaining... :)

This is my very first line following robot that is built around ATMEGA8. Construction and circuit are quite simple. Such a name- GOOFY is given because robot … Read more
Navigate around via ultrasound / Remote controlled / Line follower / Sumo bot
Using a
This is the second robot that I've ever build. The first robot was Rebel. But this robot had some limitations and shortcomings. The things it missed are among other … Read more
Hello, I'm proud to show you my first robot. Its name is "War Pig" and it's a line follower. I'll give you some technical specifications about the project. Let's … Read more

Picaxe code for line follower

tHIS POST IS A MESS. iT IS EDITED SEVERAL TIMES AND MAKES NO MORE SENCE. i HAVE NO TIME TO DO MORE ABOUT IT: bOTTOM LINE IS THAT THERE IS ATTACHED A ZIP-FILE WITH ALL i EVER DID INlINE-SENSORING FOR pICAXE!


 

Chris the carpenter asked for picaxe code to line follower.

First you have to hook up the sensors to the analouge in. That is a chapter for itself, but in the end you will have a value for each sensor; 0-255

I have tried some different line-sonsors, once JIP and I was playing around with them.

Bad robot!

Today was the qualification round of DTU robocup. My robot did not do very well at all - it tied with 7 others for the last place - getting 0 points!

When testing the robot on the robocup track the first thing that was wrong was that the lighting was so bright, that the sensors were all fully saturated all the time and thus couldn't see the line. That problem was somewhat solved by adding a lot of cardboard and tape plus some clothing on top to keep the light out.

Line following for DTU Robocup
Using a
Out of pure frustration with the fact that my LEGO MINDSTORMS NXT based robot, that was supposed to participate in DTU robocup, turned out to be crap, I thought … Read more
Since this project is not finished yet the robot just sits there for now...
Using a
Most of the LEGO platform used for this robot was used in DTU RoboCup 2006. PICAXE Pete is my first time using the PICAXE controller. The robot has a homemade line … Read more
I must have made a hundred modificated versions of easy and fast robots like this one. They are really fast and easy to do - it is quite fun to do quick … Read more
Smoothly follows a black line
Using a
The robot measures line position with the 4 line sensors and feeds this to a PD-regulator which in turn produces the two motor outputs. This setup gives a smooth … Read more