line following robot without microcontroller

[jenefa]

is there any other method of building line following robot other than micro controller...

 

[House0Fwax]

Yes, you could use a comparator.

 

[jenefa]

can i use lm324 comparator or any other... tell me the advantages of lm324 over other comparators.

 

[Nigel Goodwin]

LM324 isn't a comparator, it's a quad opamp.

Check my site below, which contains all the details of a magazine line follower.

 

[pavithrams]

lm324 is a digital ic and it can compare the voltage also, in sensor circuit it may be act as a comparator. is it right?

 

[Nigel Goodwin]

lm324 is a digital ic and it can compare the voltage also, in sensor circuit it may be act as a comparator. is it right?

No, an LM324 is an analogue IC, and an opamp - which can be used as a basic comparator, but it isn't one. Comparators are analogue ICs as well.

 

[pavithrams]

confused about lm324

i just confused about lm432 because i got a information about lm324 like this in attachement. if it wright or wrong? if it wrrong in attachement plz explain abot it.

 

[Nigel Goodwin]

While that document seems mostly wrong and very poorly written, even it repeatedly says that the LM324 is an opamp - basically it's four 741's in a single casing.

As I've said, you can configure an opamp as a comparator, but it's not actually one.

For a comparaor, check the LM311, LM339, LM393 - there are loads of different ones.

 

[pavithrams]

sensor circuit lm324

k thanks. in my line following robot, the sensor part have the lm324. i attach the basic block diagram it, bt in this lm 324 is act as comparator.....if lm324 act as a comparator in sensor?

 

[Nigel Goodwin]

A block diagram doesn't really show anything, as the block is labelled 'comparator' presumably the opamp is configured as one?.

 

[be80be]

Why not just use one like Nigel said

For a comparaor, check the LM311, LM339, LM393 - there are loads of different ones.

 

[KMoffett]

Only reason I can see is, if one needed the other opamps in the LM324 package as "opamps".
Maybe someone can point pavithrams to good tutorials on comparators vs opamps. Something like this: https://www.analog.com/static/imported-files/tutorials/MT-084.pdf

Ken

 

[Triode]

I don't know what the libraries are like in your area, but when I started looking for library books about beginning robotics in my area I found several that went into a lot of detail about building line followers. Kind of frustrating since that wasn't what I wanted, but a good resource if it is what you want. There was even one that was only about building line followers, and gave full details on every aspect, the housing, drivetrain, electronics and power supplies, where to get the stuff and how to build it, that one was called Robot Building for Beginners by David Cook. But there are several others if you can't find that. His website gives a lot of the details if your interested in that one: Robot Room - Sandwich, The Line-Following Robot

 

[vishnupsna]

Need Help Urgent

Hi friends,

There will be two parts to this system: a mouse shaped part, Jerry, and a cat shaped part, Tom. Both will be mounted with sensors and motors. They will communicate with each other, and Tom will chase Jerry. Tom will not be equipped with any sensors other than the sensor to detect Jerry, so that he bumps into walls and other objects (hardware will be protected) as in the cartoon. Jerry may or may not have other sensors to prevent him from crashing into objects, but will have a sensor that detects Tom so he goes in a different direction. The two might also communicate so that Jerryís velocity is always greater than Tomís.

This s synopsis of my project. Can anyone help me,like how can these 2 robots communicate. It would be great if u give some ideas how i can proceed this project..

 

[Triode]

Its an interesting idea, but you're off the topic of the thread.

 

[goutam]

is LM358 a comparator

 

[goutam]

Can we make a 4(or more) legged bot which follows a line without using a microcontroller, using comparator?
if yes how?
please help me.

 

[colin55]

Here is a white line follower:
**broken link removed**

 

[Dragon Tamer]

The LM324 is not a comparator but it can be configured as one. I personaly think that you would have much more luck using an op-amp configured as an op-amp for this task. It would gradually addjust the speed of the motor as the line moves away from one of the LDRs.

 

[goutam]

thanks guys.