hi everyone
i need help to build a circuit that could catch infared signal from a device then resend it to TV .. and also solve the interference problem if exected>>
i need a general idea how to build it as am using a mobile as a tv remote and i found the software to turn it into remote mode, but there still the problem of distance as ir power in mobile is too weak, so i am making this circuit to solve this problem, in addition to LINE OF SITE problem(maybe by placing 4 Leds on the corneres).. please i need help ASAP !!!!![/font][/font]

 

Well if it's urgent, just buy a prebuilt one:
http://www.thetwistergroup.com/categ...extenders.html

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--- The days of the digital watch are numbered. ---

 

Maybe it's a college assignment with a due date of 11.Feb.08

Brian

 

 

no it's not a college assignment with a due date of 11.Feb.08 !!! but thx for your help ;(

 

What are you studying? I guess it must be an Electronics Engineering qualification, else your tutor would not ask you to complete this kind of project?

Brian

 

Check here;

http://www.epanorama.net/links/irremote.html

Lots of information about IR protocols and there are some IR repeater projects and links further down which will probably interest you.

Brian

 

guss what! am studying communication engineering! and my graduating project is all about electronics! i have seen this link through my research and i need smthing more usful,, smthing practical>> i need to start at least loool

 

A "practical" starting point for what you want is the correct name..."IR Repeater"

Ken

__________________
"To invent, you need a good imagination and a pile of junk."
Thomas A. Edison (1847 - 1931)

 

thx... does interferance affect this system?

 

My guess is, as with all communications systems...from "talking to your friends" to the most sophisticated medium...there will be interference. This is where you need to research the whys and wherefores of the protocals involved in existing IR remotes.

Ken

__________________
"To invent, you need a good imagination and a pile of junk."
Thomas A. Edison (1847 - 1931)

 

thx again,, but realy i must have some thoughts what this circuit look like( a general idea at least) , because you know i am almost done with college(this is my last semester), and all my studies will be only 4 years, so i guess i don't have enough confedance when it comes to real life stuff (beside studying and doning exams all year!),,, so please if you can guied me to the right way to design the circuit,,as my Dr realy does nothing but ask me for the last 3 monthes ( WHAT HAVE YOU DONE SO FAR!!!!!!!!).

 

In this this day and age, I (62 years old) can't believe I need to say this to a young college student, but:
"Google what you need": IR repeater circuit.
Ken

__________________
"To invent, you need a good imagination and a pile of junk."
Thomas A. Edison (1847 - 1931)

 

thank you very much for your time>> you are such a great person,, and if you found any books or usefull sites let me know>> bye
if i need help from u what's your e-mail address..

 

take care>>