So i have been waiting (IMPATIENTLY) for some parts to arrive in the post...
Meanwhile, and because this project keeps popping in my head, i decided to try to draw a schematic of the whole thing. (Who knows, maybe one day someone wants to build something like it...).
I had already fritzing, so i gave it a go making a Breadboard representation of what i have.
I came to this:
But then i decided to try to make areal schematic!!!
Ai, ai, ai...
I think i cannot even READ a schematic properly, much less draw one...
Anyway, i thought this would be a good way to learn a couple more things. I looked around the net and it seemed that Eagle was a choice many people make so, i decide to try it out (it helped that they have a freeware version!).
But, of course, soon in the process the problems/doubts started.
At the moment i have this:
Would this be the right way to draw the schematic for the diode/res/piezo part?
(i made only two, so then i don't need to delete them all again and remake them the right way... 
)
Do you know any "exercises" site to learn how to read/draw schematics?
= = =
I have now wired the TX LED as you suggested (to +5v instead of ground) and it is working fine. Thanks!!!
=)