Wiegand and GPIO on T16M

[robarends]

Hello,

I have a T16M (ESPHome), and I need to connect 4 Wiegand keypads (8 GPIO required).  There are 7 GPIO, and 2 RS485 available.

Are the RS485 connections just a UART, and can be used for a Wiegand D0/D1 ?

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I have noticed in your videos on Wiegand that you use the UART rx/tx connections on the example boards.
Is that because they are 5v logic, and are required to connect the 5V D0/D1 from the Wiegand keypad?

I assume the ESP32 will be damaged if I connect the D0/D1 to the GPIO connections of an ESP32 based board like the T16M?

Thank you.

Rob