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docs(uart): clarify example pins need a USB-to-UART bridge

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Mo Fei Fei
2026-09-10 14:50:43 +08:00
committed by morris
parent 2dc25a7bbe
commit bb2c545085
7 changed files with 21 additions and 2 deletions
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docs/en/api-guides/stdio.rst
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@@ -26,6 +26,10 @@ On {IDF_TARGET_NAME}, ESP-IDF provides implementations of VFS drivers for I/O ov
Standard I/O is not limited to these options, though. See below on enabling custom destinations for standard I/O.
.. note::
The console path is separate from an application UART that you open with the :doc:`UART driver <../api-reference/peripherals/uart>` on other pins. If a UART peripheral provides console output, a USB-to-UART bridge chip is required. Many development boards already include this bridge chip onboard for console communication between the PC and the default UART0. If a USB or USB Serial/JTAG peripheral provides console output, no adapter chip is needed. The USB connector on the development board connects directly to the chip's USB D+/D- pins. Traffic on other UART ports does not appear in ``idf.py monitor`` unless a given port is configured as the console. For details, see :doc:`Establish Serial Connection with {IDF_TARGET_NAME} <../get-started/establish-serial-connection>`.
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