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Diffstat (limited to 'docs/esp32/quickref.rst')
| -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 -------------- |