Well... my presence in this wonderful community seems to end (or I hope that...), I think that nobody will cry for that reason... 
. I'm very glad that I met AI2, a month ago... An impressive simple/powerful platform. Unfortunately, I'm too ****** old to learn AI2 as deserve it and I have unfortunately only one life. Programming is not my job. It is... your job. 
If I can do that... For you, it is a child's game.
Final test, all works like a charm, of course, somebody who knows what are doing can make it best.
The PCB is on the way, a Lenovo Tab P12 is on the way...
The goal of this project was purely didactic for me, I wanted to demonstrate that I can take control from a tablet, over Bluetooth on some of ESP32 pins. All working like a charm. So it is perfectly achievable as a part of my project.
This project is a small part of a project that I started in 2012 that has the "iESN project" (International Electronic Service Network) as its name.
In special I want to thank to MIT App Inventor team and his community for making it possible to (too... 
) easily control the real world from a tablet. Same a special thanks to @TIMAI2 for his time to put some attention here. Of course thanks to all that read this subject I hope that you learn that is possible that a guy without knowledge of programming, who makes some effort to read some... (thousands) of pages of documentation and examples, can make interesting things.
Thank you very much for your time and best regards, Dan.
PS - Now... let's make some greens...! I'll go... here https://community.appinventor.mit.edu/c/work-for-hire/21