Blootooth documentation?

Can i get a blootooth documentation for programming a arduino/esp32 c++ client?

There is no official documentation. Check out GitHub - warhammerkid/bluetti_mqtt: MQTT interface for Bluetti power stations for a python interface that should work with the EP500, AC200Max, AC300 and EB3A.

Thank you bxm6306! I know about this GitHub account. But i could not analyze enough from this for programming it in C++.