Source code for adafruit_seesaw.digitalio

# SPDX-FileCopyrightText: 2017 Dean Miller for Adafruit Industries
#
# SPDX-License-Identifier: MIT

# pylint: disable=missing-docstring,invalid-name,too-many-public-methods

"""
`adafruit_seesaw.digitalio`
====================================================
"""

import digitalio

__version__ = "0.0.0+auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_seesaw.git"


[docs] class DigitalIO: """CircuitPython-compatible class for digital I/O pins This class is intended to be a compatible subset of `digitalio.DigitalInOut`. Due to technical limitations, PULL_DOWNs are not supported. :param ~adafruit_seesaw.seesaw.Seesaw seesaw: The device :param int pin: The pin number on the device""" def __init__(self, seesaw, pin): self._seesaw = seesaw self._pin = pin self._drive_mode = digitalio.DriveMode.PUSH_PULL self._direction = digitalio.Direction.INPUT self._pull = None self._value = False def deinit(self): pass
[docs] def switch_to_output(self, value=False, drive_mode=digitalio.DriveMode.PUSH_PULL): """Switch the pin to output mode""" self._seesaw.pin_mode(self._pin, self._seesaw.OUTPUT) self._seesaw.digital_write(self._pin, value) self._drive_mode = drive_mode self._pull = None
[docs] def switch_to_input(self, pull=None): """Switch the pin to input mode""" if pull == digitalio.Pull.DOWN: 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) self._pull = pull
@property def direction(self): """Retrieve or set the direction of the pin""" return self._direction @direction.setter def direction(self, value): if value == digitalio.Direction.OUTPUT: self.switch_to_output() elif value == digitalio.Direction.INPUT: self.switch_to_input() else: raise ValueError("Out of range") self._direction = value @property def value(self): """Retrieve or set the value of the pin""" if self._direction == digitalio.Direction.OUTPUT: return self._value return self._seesaw.digital_read(self._pin) @value.setter def value(self, val): if not 0 <= val <= 1: raise ValueError("Out of range") self._seesaw.digital_write(self._pin, val) self._value = val @property def drive_mode(self): """Retrieve or set the drive mode of an output pin""" return self._drive_mode @drive_mode.setter def drive_mode(self, mode): pass @property def pull(self): """Retrieve or set the pull mode of an input pin""" return self._pull @pull.setter def pull(self, mode): if self._direction == digitalio.Direction.OUTPUT: raise AttributeError("cannot set pull on an output pin") if mode == digitalio.Pull.DOWN: 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) else: raise ValueError("Out of range")