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How to setup sensors and infrared LED in a line-follower ROBOT?

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h.galeh

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hello
please tell me how to bios "infra led" and photo transistor : their resistors(concluded with any of them)
and please say that how we can use the result of photo transistor

abstract
---------------------
their applicable plan with relevant resistors

thank you
 

about line follower

A bios is used to start up a computer and has nothing to do with leds.

The rest of the question I don't understand. Do you have a photo transistor and don't know what to do with it?
 

Re: about line follower

Hi

For a line follower it can be done in many ways. One of it is to connect the photodiodes to digital outputs through 500ohm resistor. The photoreceivers are connected together and biased through high value (~63k) pull up resistor. The common (between photoreceivers and 63k resistor) is connected to analog input (or comparator input).The photodiodes are turned on one at a time and the corresponding analog input is read (the photoreceiver corresponding to other analog input do not sink any current). You must have receivers with daylight filter (Dark in color) but still protect them from strong light.

A similar configuration has worked for me for indoor use.

https://www.youtube.com/watch?v=woPAblq3H7Y

Plus google "line follower" or "line tracking"

Hope above help

Thanks
 

about line follower

thank you AVM_NOIDA
*youtube is blocked in our country*
in short, my question is:

how to set-up sensors and infra-red LED in a line-follower ROBOT?

it's a good help if you put it's map inside your post(an image).
please include, the output of each point
 

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