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| author | Tomasz 'CeDeROM' CEDRO <tomek@cedro.info> | 2022-08-18 05:20:02 +0200 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2022-08-26 15:10:47 +1000 |
| commit | 769262ef03b4e7198759bcc72c87c7ca5fc7de29 (patch) | |
| tree | 06ebe10e7c9c398f1375e060ade44f8cfc05e699 /docs/esp32 | |
| parent | 6b16ce8d38461e9a8f11642a4a9c6e4621c00872 (diff) | |
| download | micropython-769262ef03b4e7198759bcc72c87c7ca5fc7de29.tar.gz micropython-769262ef03b4e7198759bcc72c87c7ca5fc7de29.zip | |
docs/esp32: Update UART quickref on input-only pins.
Signed-off-by: Tomasz 'CeDeROM' CEDRO <tomek@cedro.info>
Diffstat (limited to 'docs/esp32')
| -rw-r--r-- | docs/esp32/quickref.rst | 7 |
1 files 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 |