Hi @raulp, welcome to the MySensors community.
I don't understand what you are trying to do, but the MySensors getting started guide is available from the rocket icon at the top of the forum (https://www.mysensors.org/about )
Developer contribution guidelines are available at https://www.mysensors.org/download/contributing
Library documentation is available at https://www.mysensors.org/apidocs/index.html