Bottom view. Only 2 LEDs and 2 LDRs are used. The chassis was from an old PC mouse.



Top view. Motors, gear box and chassis.



Main PCB and electronics components. Major components are P16F684 and L293D. That's why it's called Simple Line Follower. Speed, sensitivity and differential motors drive can be software adjusted.



Programming/ development stage.



Final product.

Please see it in action:

http://au.youtube.com/watch?v=8Z_MmrdH4oc

Or

http://s271.photobucket.com/albums/j...nt=Testrun.flv

It still needs improvement. I want it to go faster especially going around curves. I also want to run it on a more difficult track.

__________________
May the force be with you.


My project: Simple White Line Follower

http://au.youtube.com/watch?v=8Z_MmrdH4oc

http://i271.photobucket.com/albums/j...nefollower.jpg

 

Looks great, nice use of an old mouse too. To go faster you could change the gear ratio with the dual gearbox. What sensors did you use for the line followers?

__________________
Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com/

 

Yes, looks really good, very impressive.

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PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Looks like an LDR/LED combo to me.

 

That's a great-looking little unit! Good job.


Torben

 

Awesome! Very well done.

 

Thanks for the nice comments.

The sensors are just ordinary LDR. The two transmitter LEDs are high intensity LED. They draw about the same current as the ordinary LED but are a lot brighter. I also use ADC to adjust motor speed. The more light received from the LDR the slower the corresponding motor speed.

The gear ratio I'm using now is 38.2:1, which is the second lowest gear ratio. I did try the lowest ratio but it's actually slower when the wheels touch the floor. I think it's because the wheels are bit too big and thick ( but look nice ), which put on too much load on the small motors. So when the gear was on lowest ratio, the wheels spin faster before they touch the floor. But as soon as they touch the floor, they slow right down.

__________________
May the force be with you.


My project: Simple White Line Follower

http://au.youtube.com/watch?v=8Z_MmrdH4oc

http://i271.photobucket.com/albums/j...nefollower.jpg

 

You've got your ratio terminology confused, it's the second highest gear ratio.

 

nice!!! can i use your project for my microcontroller project design? please tell me how did you do it.. i am first time here. pls email me at ramil023@yahoo.com

 

Use his project for your project? Why can't you make your own?

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IF YOU WANT TO HELP FINE IF NOT PLEASE DON"T PEE IN MY CHEERO'S

 

*signs ramil up for as many spam sites that send sick animal p0rn*

Seriously, it should be against the rules to post email adresses on the open forum.

__________________

I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.

Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.

 

I see that everyone is impressed with your job. I will be impressed too, but the stupid college block the picture and video from many websites. This really suck, btw I think you did a great Job on it because i never see many appreciation in a thread.

When, I will be back home I might visit the site again and see it.

__________________
Hesham Ismail Mohammed Sharif
Thank me if you want

 

thats nice!.. i like the way it was contructed.. honestly our school project is just like that.. and im looking for some info regrading WHITE LINE TRACER and walla!!! i found some resources.. thanks for the idea dude!!!
.. but i was wondering if the sensors will also work at a 4-wheeled cars, etc?.. i mean the number of sensors?.. any comments?.. thankz!!..

 

Hi,Im also building a simple line follower as one part of my project. Is it posible to do so using a micromater (siemens)...By the way I'm new so be gentle