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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/esp32/quickref.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/esp32/quickref.rst b/docs/esp32/quickref.rst index 68938feedc..1709891265 100644 --- a/docs/esp32/quickref.rst +++ b/docs/esp32/quickref.rst @@ -171,6 +171,10 @@ Notes: * The pull value of some pins can be set to ``Pin.PULL_HOLD`` to reduce power consumption during deepsleep. +There's a higher-level abstraction :ref:`machine.Signal <machine.Signal>` +which can be used to invert a pin. Useful for illuminating active-low LEDs +using ``on()`` or ``value(1)``. + UART (serial bus) ----------------- |