I need information about extending and embedding Python

[Cesar Lopez]

I need to make a library for python to update some external devices in
an embeded system with a little Hitachi microcontroller, so I need
information about How to do that, I must to define a method to define
librarys to control devices like, RS-232 port, Leds, Keyboards,
Speakers.

Now I´ve defined a litle program in C++, its control a green Led
(on/off) and now I want to do that with the python interpreter, so I
need your help.