From 769262ef03b4e7198759bcc72c87c7ca5fc7de29 Mon Sep 17 00:00:00 2001 From: Tomasz 'CeDeROM' CEDRO Date: Thu, 18 Aug 2022 05:20:02 +0200 Subject: [PATCH] docs/esp32: Update UART quickref on input-only pins. Signed-off-by: Tomasz 'CeDeROM' CEDRO --- docs/esp32/quickref.rst | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/docs/esp32/quickref.rst b/docs/esp32/quickref.rst index 1529c0ef49..03ca97c7a7 100644 --- a/docs/esp32/quickref.rst +++ b/docs/esp32/quickref.rst @@ -216,9 +216,10 @@ They each have default GPIO assigned to them, however depending on your ESP32 variant and board, these pins may conflict with embedded flash, onboard PSRAM or peripherals. -Any GPIO can be used for hardware UARTs using the GPIO matrix, so to avoid -conflicts simply provide ``tx`` and ``rx`` pins when constructing. The default -pins listed below. +Any GPIO can be used for hardware UARTs using the GPIO matrix, except for +input-only pins 34-39 that can be used as ``rx``. To avoid conflicts simply +provide ``tx`` and ``rx`` pins when constructing. The default pins listed +below. ===== ===== ===== ===== \ UART0 UART1 UART2