Number of UARTs in ESP32

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asad.javed

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Hi All

I am working on an IoT project using ESP32. The datasheet for ESP32 says that it has three UARTs, however some pinout images show only two UARTs. Does the ESP32 have three UARTs or are the GPIOs used for the other two UARTs apart from the main one? I am new to this board so kindly ignore my lack of technical knowledge.

Thanks.

Regards.
 

esp32 chip allows to configure GPIOs to internal peripherals like UART etc.
This configuration matrix is programmed through the firmware on the board.

If one UART is missing , then refer to your board supplier datasheet.
 

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