Struct rppal::gpio::Pin

pub struct Pin { /* fields omitted */ }

Unconfigured GPIO pin.

Pins are constructed by retrieving them using Gpio::get.

An unconfigured Pin can be used to read the pin's mode and logic level. Converting the Pin to an InputPin, OutputPin or IoPin through the various into_ methods available on Pin configures the appropriate mode, and provides access to additional methods relevant to the selected pin mode.

The unproven embedded-hal digital::InputPin trait implementation for Pin can be enabled by specifying the optional hal-unproven feature in the dependency declaration for the rppal crate.

Implementations

impl Pin

pub fn pin(&self) -> u8

Returns the GPIO pin number.

Pins are addressed by their BCM numbers, rather than their physical location.

pub fn mode(&self) -> Mode

Returns the pin's mode.

pub fn read(&self) -> Level

Reads the pin's logic level.

pub fn into_input(self) -> InputPin

Consumes the Pin, returns an InputPin, sets its mode to Input, and disables the pin's built-in pull-up/pull-down resistors.

pub fn into_input_pulldown(self) -> InputPin

Consumes the Pin, returns an InputPin, sets its mode to Input, and enables the pin's built-in pull-down resistor.

The pull-down resistor is disabled when InputPin goes out of scope if reset_on_drop is set to true (default).

pub fn into_input_pullup(self) -> InputPin

Consumes the Pin, returns an InputPin, sets its mode to Input, and enables the pin's built-in pull-up resistor.

The pull-up resistor is disabled when InputPin goes out of scope if reset_on_drop is set to true (default).

pub fn into_output(self) -> OutputPin

Consumes the Pin, returns an OutputPin and sets its mode to Output.

pub fn into_io(self, mode: Mode) -> IoPin

Consumes the Pin, returns an IoPin and sets its mode to the specified mode.

Trait Implementations

impl Debug for Pin

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for Pin

fn drop(&mut self)

Executes the destructor for this type.

impl Eq for Pin

impl InputPin for Pin

type Error = Error

Error type

fn is_high(&self) -> Result<bool>

Is the input pin high?

fn is_low(&self) -> Result<bool>

Is the input pin low?

impl<'a> PartialEq<&'a Pin> for Pin

fn eq(&self, other: &&'a Pin) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Pin> for Pin

fn eq(&self, other: &Pin) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'a> PartialEq<Pin> for &'a Pin

fn eq(&self, other: &Pin) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.