IR Remote Receiver

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This crate provides a signal decoder for the commonly found 44-button infra red remote used commonly with LED strips. When an IR sensor is connected to a GPIO pin, this crate can decode the IR signals into which button was pressed.

Usage

This will read signals on GPIO 4 and print them:

use pi_ir_remote::read_ir_remote;
use pi_ir_remote::PrintSignalHandler;

fn main() {
    let handler = PrintSignalHandler::new();
    read_ir_remote(4, Box::new(handler));
}

You can make your own signal handler by implementing the SignalHandler trait:

pub trait SignalHandler {
    fn handle_signal(&mut self, signal: &Signal);
}

How it works

The IR remote sends pulse length encoded signals. Among other special pulses, there are a short and long pulse, corresponding to 0 and 1, allowing the transmission of binary data.

Every button is associated to a 32 bit word. This library includes the mapping of binary codes to buttons in the Signal enum.