What could be the best approach to using the EG915X and an MCU?

Currently, I’m working on a solution that allows to communicate an MCU with the Quectel module EG915N or EG915U through port UART (to send AT commands).
So far, I’ve thought that I could use the ATSAME53J19A, but I’m not sure, because the requirements are next:

  • I will have a web service based on SOAP-ENV:Envelope, where this service can send a POST (with any raw data) to the module EG915N.
  • After the module EG915N receives the payload from that POST, the module will have to pass this payload to the MCU using the port UART.
  • Finally, the MCU will have to send the payload to another UART.

Above is my idea, but I’m not sure if for this solution I have the correct Quectel Module and the right MCU. Because the purpose is just to send data to Firebase each time that I remotely said the module doing it.

Then, if you could help me with good advice or ideas, I would appreciate your help.
Thanks in advance.

EG915N only has one MAIN_TXD/RXD, if you need two main uart, you can choose to add USB