Struct ExampleKeypad 

pub struct ExampleKeypad { /* private fields */ }

Example output of keypad_struct!()- for documentation purposes only!

You shouldn’t try to use ExampleKeypad outside of this crate.

This struct is the result of this macro invocation:

use mock_hal::{self, Input, OpenDrain, Output, PullUp};
use core::convert::Infallible;

keypad_struct!{
    pub struct ExampleKeypad <Error = Infallible> {
        rows: (
            mock_hal::gpioa::PA0<Input<PullUp>>,
            mock_hal::gpioa::PA1<Input<PullUp>>,
            mock_hal::gpioa::PA2<Input<PullUp>>,
            mock_hal::gpioa::PA3<Input<PullUp>>,
        ),
        columns: (
            mock_hal::gpioa::PA4<Output<OpenDrain>>,
            mock_hal::gpioa::PA5<Output<OpenDrain>>,
            mock_hal::gpioa::PA6<Output<OpenDrain>>,
            mock_hal::gpioa::PA7<Output<OpenDrain>>,
            mock_hal::gpioa::PA8<Output<OpenDrain>>,
        ),
    }
}

Implementations

impl ExampleKeypad

pub fn decompose<'a>(&'a self) -> [[KeypadInput<'a, Infallible>; 5]; 4]

Get a 2d array of embedded-hal input pins, each representing one key in the keypad matrix.

pub fn release( self, ) -> ((PA0<Input<PullUp>>, PA1<Input<PullUp>>, PA2<Input<PullUp>>, PA3<Input<PullUp>>), (RefCell<PA4<Output<OpenDrain>>>, RefCell<PA5<Output<OpenDrain>>>, RefCell<PA6<Output<OpenDrain>>>, RefCell<PA7<Output<OpenDrain>>>, RefCell<PA8<Output<OpenDrain>>>))

Give back ownership of the row and column pins.

This consumes the keypad struct. All references to its virtual KeypadInput pins must have gone out of scope before you try to call .release(), or it will fail to compile.

The column pins will be returned inside of RefCells (because macros are hard). You can use .into_inner() to extract each column pin from its RefCell.