Struct Ir 

pub struct Ir<'a> { /* private fields */ }

Available on target_os=none only.

A device abstraction for an infrared receiver for NEC protocol decoding.

This implementation uses the RP2040’s PIO state machine to decode NEC IR signals in hardware, making decoding reliable even when the CPU is busy with other tasks. Works with any PIO peripheral (PIO0, PIO1, or PIO2 on Pico 2).

Examples

use device_envoy::ir::{Ir, IrEvent, IrStatic};

async fn example(
    p: embassy_rp::Peripherals,
    spawner: embassy_executor::Spawner,
) -> device_envoy::Result<()> {
    static IR_STATIC: IrStatic = Ir::new_static();
    let ir = Ir::new(&IR_STATIC, p.PIN_15, p.PIO0, spawner)?;

    loop {
        let IrEvent::Press { addr, cmd } = ir.wait_for_press().await;
        defmt::info!("IR: addr=0x{:04X}, cmd=0x{:02X}", addr, cmd);
    }
}

Implementations

impl Ir<'_>

pub const fn new_static() -> IrStatic

Create static channel resources for IR events.

See Ir for usage examples.

pub fn new<P, PIO>( ir_static: &'static IrStatic, pin: Peri<'static, P>, pio: Peri<'static, PIO>, spawner: Spawner, ) -> Result<Self>

where P: Pin + PioPin, PIO: IrPioPeripheral,

Create a new PIO-based IR receiver on the specified pin.

See Ir for usage examples.

Errors

Returns an error if the background task cannot be spawned.

pub async fn wait_for_press(&self) -> IrEvent

Wait for the next IR event.

See Ir for usage examples.