diff options
| author | spacemanspiff2007 <accounts@sgerber.de> | 2019-03-26 09:22:21 +0100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2019-03-28 15:25:41 +1100 |
| commit | 95b6330403a1b111b88704b327d172ae00927389 (patch) | |
| tree | c39f6c8b4014f9a0615f0e6feed1bdb3141df842 /docs/esp32 | |
| parent | 92149c8a7954169285b2909012dc601c6e7cb0aa (diff) | |
docs/esp32: Add example for pin isolation in combination with deepsleep.
Diffstat (limited to 'docs/esp32')
| -rw-r--r-- | docs/esp32/quickref.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/esp32/quickref.rst b/docs/esp32/quickref.rst index e6c53b117..5ac8aa3b2 100644 --- a/docs/esp32/quickref.rst +++ b/docs/esp32/quickref.rst @@ -340,6 +340,15 @@ Notes: * Calling ``deepsleep()`` without an argument will put the device to sleep indefinitely * A software reset does not change the reset cause +* There may be some leakage current flowing through enabled internal pullups. + To further reduce power consumption it is possible to disable the internal pullups:: + + p1 = Pin(4, Pin.IN, Pin.PULL_HOLD) + + After leaving deepsleep it may be necessary to un-hold the pin explicitly (e.g. if + it is an output pin) via:: + + p1 = Pin(4, Pin.OUT, None) OneWire driver -------------- |