ahem, my portugese (portugese ?) is quite nonexistant, would you care to repost in english ?

I read:

Necessito de criar um External para PD, no entanto � consigo, pois s�

I see you read iohannes docs. There are also some simpler examples in the pd dir in doc/6.externs. You also might want to look at the cvs external collection here: http://pure-data.sourceforge.net/ , there is a lot to read and build up upon.

If you are more comfortable with c++ you might want to give flext a shot http://www.parasitaere-kapazitaeten.net/ext/flext/

I did not understand what the external should be doing though ..

lg

x