ESP32-S3-Mini ---- UART0-1-2

Damien_Effi
Posts: 2
Joined: Fri Aug 25, 2023 8:13 am

ESP32-S3-Mini ---- UART0-1-2

Postby Damien_Effi » Thu Aug 31, 2023 10:06 am

Hi all,
I am designing a board with the ESP32-S3-MINI and I need 1 UART (UART0) for debug and 2xRS485 (UART1 and UART2 with RTS).
I plan to use the UART1 (IO17, IO18 and IO19) for the 1st RS485 interface.
For the 2nd RS485, which GPIOs can I use for TXD, RXD and RTS? Is it possible to choose the ones I want?
According to the ESP32-S3 datasheet, there is 3 UART so how can i chose the GPIOs for the 3rd UART ?
Is it possible?

Thanks

ESP_Sprite
Posts: 9766
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3-Mini ---- UART0-1-2

Postby ESP_Sprite » Fri Sep 01, 2023 1:53 am

You can select them freely (same for the other UARTS) by passing the GPIOs you want to the initialization function.

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