docs/esp32: Add a note to quickref about use of Pin.PULL_HOLD.

2019-03-14 07:38:50 +11:00 · 2019-03-14 07:38:50 +11:00 · 28c2873d99
commit 28c2873d99
--- a/docs/esp32/quickref.rst
+++ b/docs/esp32/quickref.rst
@ -161,6 +161,9 @@ Notes:

 * Pins 34-39 are input only, and also do not have internal pull-up resistors

+* The pull value of some pins can be set to ``Pin.PULL_HOLD`` to reduce power
+  consumption during deepsleep.
+
 PWM (pulse width modulation)
 ----------------------------