Communication between two TTGO T-BEAM ESP32

[Triomaster]

Hello guys,

Sorry to bother you with this doubt, I have been looking for, but I was not clear on how to be able to connect the two cards simultaneously. Be by bluetooth, wi-fi.

I am developing an animal door design, in which an ESP32 board will be the main one, which controls the door and sensors and the other board, will be the board that walks with the animal (dog, cat, etc.), to when you get near the door, the board that is with animal transmits to the main board for the door to open, an RFID genre ..

Thanks to anyone who can help.

Hug to everyone.