Serial UART Communication

Hello,
I have a situation where I have a number of sensors sending serial data over 433 MHz to a base station that I can physically connect to my PI4’s UART pins that is running HA.

My question is - How do I read in the UART data into HA? I see the Serial platform, but I don’t know how to configure it to use the PI4 UART pins as opposed to the USB serial connection as shown in the example.

I know I could use a UART to USB bridge, but I would rather not do that if possible.

Thank you all in advance!

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Hi’
Found a solution?? Having the same issue.