Author Topic: Line following robot sensor circuit  (Read 3895 times)

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Offline TheBadgerTopic starter

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Line following robot sensor circuit
« on: September 20, 2010, 11:40:35 am »
So I am building a robot to follow white lines and I just wondered if anyone had any advice on which is the best way to do the sensor circuit.

I have been told to feed photo diodes into comparators, to feed photo transistors into hex schmitt triggers, to feed them directly into ADC converters and into the comparators on the PIC itself.

getting a bit indecisive now, which is the best way?
 

Offline Simon

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Re: Line following robot sensor circuit
« Reply #1 on: September 20, 2010, 11:45:43 am »
some sort of light detection system (reflected light from the white strip) to compare with the rest of the surface, so comparators sound like a good idea fed into a pic that will control steering
 

Offline Jochem

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Re: Line following robot sensor circuit
« Reply #2 on: September 20, 2010, 01:06:11 pm »
This guy built a line following tank without using a micro, it might be fun to take a look at it. I think it follows black lines on white, but it shouldn't be too hard to have it follow white lines on black!
 


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