Struct Gpio 

pub struct Gpio { /* private fields */ }

Manages a gpio pin to write on (in order set it high or low) and read its value.

Implementations

impl Gpio

pub fn new(pin: u32) -> Result<Self, Error>

Creates a new Gpio object on a pin from its number and initialises its files.

Because Raspberry PI devices can’t have more than 40 pins, the given pin must follow this condition: pin <= 40.

Examples found in repository

examples/blink_a_led.rs (line 4)

fn main() -> Result<(), std::io::Error> {
    let led = Gpio::new(16)?;
    
    loop {
        led.write(raslib::HIGH)?;
        raslib::sleep(1000);
        
        led.write(raslib::LOW)?;
        raslib::sleep(1000);
    }
}

pub fn write(&self, value: bool) -> Result<(), Error>

Writes the value to the GPIO value file and then activate or deactivate the port.

Examples found in repository

examples/blink_a_led.rs (line 7)

fn main() -> Result<(), std::io::Error> {
    let led = Gpio::new(16)?;
    
    loop {
        led.write(raslib::HIGH)?;
        raslib::sleep(1000);
        
        led.write(raslib::LOW)?;
        raslib::sleep(1000);
    }
}

pub fn read(&self) -> Result<bool, Error>

Reads the value contained into the GPIO value file and returns it as a boolean.

pub fn pin(&self) -> u32

Returns the GPIO pin number.

It was specified in new.

Trait Implementations

impl Clone for Gpio

fn clone(&self) -> Gpio

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Gpio

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

Formats the value using the given formatter.

impl Copy for Gpio