Hi PaulS,
I read it on the datasheet. Besides my teacher told me. He told me to try some commands and watch the results. So my first step is trying to send a command and just read the answer. On the adafruit library I saw that you must send some byte before sending a commad as a sensor. But like I said it seems that it´s necessary an intermediate... Maybe one of you know a web page where I can find a tutorial ... o some clue to solve my problem.
anyway, thank you for your time!!
greetings!