Module embedded_hal::digital::v1_compat
source · Expand description
v1 compatibility wrappers
This module provides wrappers to support use of v2 implementations with
v1 consumers. v2 traits must be explicitly cast to the v1 version using
.into()
, and will panic on internal errors
extern crate embedded_hal;
use embedded_hal::digital::{v1, v2, v1_compat::OldOutputPin};
struct NewOutputPinImpl {}
impl v2::OutputPin for NewOutputPinImpl {
type Error = ();
fn set_low(&mut self) -> Result<(), Self::Error> { Ok(()) }
fn set_high(&mut self) -> Result<(), Self::Error>{ Ok(()) }
}
struct OldOutputPinConsumer<T: v1::OutputPin> {
_pin: T,
}
impl <T>OldOutputPinConsumer<T>
where T: v1::OutputPin {
pub fn new(pin: T) -> OldOutputPinConsumer<T> {
OldOutputPinConsumer{ _pin: pin }
}
}
fn main() {
let pin = NewOutputPinImpl{};
let _consumer: OldOutputPinConsumer<OldOutputPin<_>> = OldOutputPinConsumer::new(pin.into());
}
Structs
- Wrapper to allow fallible
v2::InputPin
traits to be converted tov1::InputPin
traits where errors will panic. - Wrapper to allow fallible
v2::OutputPin
traits to be converted tov1::OutputPin
traits