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Digitalio: enable PULL_DOWN mode #45

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merged 3 commits into from
Jan 8, 2020
Merged

Digitalio: enable PULL_DOWN mode #45

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8f92035
digitalio: Enable Pull.DOWN mode
jepler Jan 2, 2020
20fb91a
seesaw: Clear pull-ups when setting mode to INPUT
jepler Jan 2, 2020
08c0f79
digitalio: Initialize direction to INPUT
jepler Jan 2, 2020
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10 changes: 5 additions & 5 deletions adafruit_seesaw/digitalio.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ def __init__(self, seesaw, pin):
self._seesaw = seesaw
self._pin = pin
self._drive_mode = digitalio.DriveMode.PUSH_PULL
self._direction = False
self._direction = digitalio.Direction.INPUT
self._pull = None
self._value = False

Expand All @@ -62,8 +62,8 @@ def switch_to_output(self, value=False, drive_mode=digitalio.DriveMode.PUSH_PULL
def switch_to_input(self, pull=None):
"""Switch the pin to input mode"""
if pull == digitalio.Pull.DOWN:
raise ValueError("Pull Down currently not supported")
if pull == digitalio.Pull.UP:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT_PULLDOWN)
elif pull == digitalio.Pull.UP:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT_PULLUP)
else:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT)
Expand Down Expand Up @@ -117,8 +117,8 @@ def pull(self, mode):
if self._direction == digitalio.Direction.OUTPUT:
raise AttributeError("cannot set pull on an output pin")
if mode == digitalio.Pull.DOWN:
raise ValueError("Pull Down currently not supported")
if mode == digitalio.Pull.UP:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT_PULLDOWN)
elif mode == digitalio.Pull.UP:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT_PULLUP)
elif mode is None:
self._seesaw.pin_mode(self._pin, self._seesaw.INPUT)
Expand Down
1 change: 1 addition & 0 deletions adafruit_seesaw/seesaw.py
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Original file line number Diff line number Diff line change
Expand Up @@ -277,6 +277,7 @@ def _pin_mode_bulk_x(self, capacity, offset, pins, mode):
self.write(_GPIO_BASE, _GPIO_DIRSET_BULK, cmd)
elif mode == self.INPUT:
self.write(_GPIO_BASE, _GPIO_DIRCLR_BULK, cmd)
self.write(_GPIO_BASE, _GPIO_PULLENCLR, cmd)

elif mode == self.INPUT_PULLUP:
self.write(_GPIO_BASE, _GPIO_DIRCLR_BULK, cmd)
Expand Down