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

6 years ago · 28c2873d99
1 changed files with 3 additions and 0 deletions
--- 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)
 ----------------------------