Complete setup to train model and use with esp32 as the receiver.

[KaushikNITK]

I want to set this up to detect keypoints of a person. I will be training this model maybe finetune. I want to make sure few things

1. Is it compulsory to have the person in line of sight?
2. What happens if metal is in the line of sight ( person is in line of sight and when person is not in line of sight)
3. What happens if there are electronic components near transmitter or receiver
4. How does it make sure that if the user places transmitter at a different position than the few with which it is trained on.
5. can i get trained weights of the models for python

I want to know more about these kind of questions.