Thanks mdavej

Yes, I saw that the post is old; however, this is the only reference I found about the subject. So, who knows, perhaps DrNeon sees this too.

Anyway, I also know that a remote control can be bought for a really low price; however, I would prefer to invest that money on an arduino board and experiment a little bit. Right now I lent some equipment, so, I'm trying the solution to send the codes by using an IR LED. If I succeeded, then I will definitely buy the board. Buying the remote control is my last solution.

Best regards
Josef