Struct DigitalInputDevice

pub struct DigitalInputDevice { /* private fields */ }

Represents a generic input device with typical on/off behaviour. Adds machinery to fire the active and inactive events for devices that operate in a typical digital manner: straight forward on / off states with (reasonably) clean transitions between the two.

Implementations

impl DigitalInputDevice

pub fn new(pin: u8) -> DigitalInputDevice

Returns a DigitalInputDevice with the pin number given with the pin pulled to low by default is_active property is adjusted accordingly so that True still means active regardless of the :attr:pull_up setting

Arguments

• pin - The GPIO pin which the device is attached to

Note: BCM pins 2 and 3 are i2c SDA and SCL respectively and include a fixed, 1.8 kohms pull-up to 3.3v

These pins are not suitable for use where no pullup resistor is required Source: https://pinout.xyz/pinout/pin5_gpio3

pub fn new_with_pullup(pin: u8) -> DigitalInputDevice

Returns a DigitalInputDevice with the pin number given with the pin pulled high with an internal resistor by default is_active property is adjusted accordingly so that True still means active regardless of the :attr:pull_up setting

Arguments

• pin - The GPIO pin which the device is attached to

pub fn is_active(&self) -> bool

Returns True if the device is currently active and False otherwise.

pub fn close(self)

Shut down the device and release all associated resources.

pub fn pin(&self) -> u8

The Pin that the device is connected to.

pub fn value(&self) -> bool

Returns True if the device is currently active and False otherwise.

pub fn wait_for_inactive(&mut self, timeout: Option<f32>)

Pause the program until the device is deactivated, or the timeout is reached.

pub fn wait_for_active(&mut self, timeout: Option<f32>)

Pause the program until the device is activated, or the timeout is reached.

Trait Implementations

impl Debug for DigitalInputDevice

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

Formats the value using the given formatter.