From 85c51a548fc83d0776029b01b1be3748f82e296a Mon Sep 17 00:00:00 2001 From: Mike Causer Date: Fri, 30 Apr 2021 15:57:20 +1000 Subject: [PATCH] docs/esp32: Mention Signal in GPIO section of quickref. --- docs/esp32/quickref.rst | 4 ++++ 1 file changed, 4 insertions(+) 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 ` +which can be used to invert a pin. Useful for illuminating active-low LEDs +using ``on()`` or ``value(1)``. + UART (serial bus) -----------------