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Line Follower, the line follower is done,I need some advice on how to increase the speed

Line Follower, the line follower is done,I need some advice on how to increase the speed of the buggy because it is very slow

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Chris the Carpenter's picture

GIGO.

-Chris I did not correct crossed text because it was written in the tilte the text, but i correct it now.

here a video http://www.youtube.com/watch?v=UjP6xGLwB8Q

If I increase the number of gears, the buggy do some doggy movement going right and then left then losing track, What do you guys thing the problem is?

Chris the Carpenter's picture

Forget for a moment the question itself and how you gave us no info to work from for a minute...

Did you think there might be some confusion in terms of the fact that all the text has been crossed-out? You wrote the post, posted it and saw the text ( with the stike-through) and said, "yup, nailed it! That looks great, no one will be confused, no reason to fix it."

I mean, was there no point at which you thought you should go back and fix it? Really? 

bdk6's picture

If your circuit schematic is accurate, there is nothing there that needs to be fixed.  Here are your options to make it faster:  Use higher voltage.  I know you said the motors are rated for six volts and you are using a six volt supply, but about a volt is dropped in the transistor.  You can check that with the motor running.  Put a multimeter on the motor terminals (not anywhere else) and you will see that the voltage on the motor is only about 5 volts.  You can increase the power supply until the voltage across the motor is six volts.  It is also possible, from looking at your video, that the power supply is current limited and actually dropping the voltage as the current rises.  I don't think that is the case, but you should check it.  The next option is larger wheels.  A larger wheel with the same rpm will make the bot go faster.  The last option is more powerful/faster motors.  You stated in the shoutbox they are 7.7 RPM.  I find that VERY hard to believe.  That would be about 1 revolution every 8 seconds.  With a 3 inch (75 mm) wheel that is about 1 inch (25 mm) per second.  Your bot looks to be going faster than that.  77 RPM sounds about right, though.

This is my circuit, the transistor circuit is a darlington transistor (in the diagram not changed).

The logic circuit is using only 1 AND, 1 OR and 1 NOT.

The motor maximum voltage is 6 votls. The allowed diameter is 10inch. Nothing else is restricted

 

 

Gabriel_f's picture

If it's due to code I suggest looking up PID-regulation

OddBot's picture

To make it go faster, install a warp drive!

When you ask an accurate , precise question complete with photos, video, motor specifications, sensor specifications and your code then we will give you an accurate, precise answer complete with suggestions on improving your code and possibly some better motors and sensors.

basile's picture

Maybe some specs, photos, video(s) and maybe even some code could be really helpful.
This is the only way to get a helpful answer!
Give us something to work with!

basile

Chris the Carpenter's picture

What is this, exactly?