> This will give you the level of signal(ie how strong it is) but will not
> solve the frequency problem, it will receive any IR signal so it could
> be the one you are sending or it could be let's say your TV remote
> control

That TSL26xR has peak response at 940nm, which is the output of
many or most IR LEDs. I don't think ambient light would have very
much natural 940nm content, so that leaves you with filtering out any
unwanted artificial sources. Can you arrange for your transmitter to
have a centre frequency that is not in common with domestic 38kHz
transmitters ? If so, then you can use a high Q BP filter and use any
coding system

What is the significance of the link ?

http://homepage.ntlworld.com/mbradley49/electronics/golf_project.html

Do you want to build something similar ?

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