Struct Dht11Sensor 

pub struct Dht11Sensor { /* private fields */ }

DHT11 temperature and humidity sensor implementation

Implementations

impl Dht11Sensor

pub fn new(pin: u8) -> Self

Create a new DHT11 sensor instance

Arguments

• pin - GPIO pin number connected to the DHT11 sensor

Example

use env_monitor::sensors::dht11::Dht11Sensor;

let sensor = Dht11Sensor::new(17);

Examples found in repository

src/examples/env_monitor_example.rs (line 13)

async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
    println!("环境监控系统启动");
    println!("- DHT11温湿度传感器: GPIO17");
    println!("- 火焰传感器: GPIO27, 蜂鸣器: GPIO22");

    let dht_sensor = Dht11Sensor::new(17);
    let fire_sensor = FireSensor::new(27, 22, true);

    fire_sensor.start_monitoring(100).await?;

    loop {
        match dht_sensor.read_async().await {
            Ok(data) => {
                println!(
                    "温度: {:.1}°C, 湿度: {:.1}%",
                    data.temperature, data.humidity
                );

                if data.temperature > 40.0 {
                    println!("警告: 温度过高! ({:.1}°C)", data.temperature);
                }
            }
            Err(e) => {
                println!("DHT11读取失败: {}", e);
            }
        }

        time::sleep(Duration::from_secs(5)).await;
    }
}

Trait Implementations

impl TemperatureSensor for Dht11Sensor

fn read(&self) -> Result<Dht11Data, SensorError>

Synchronously read temperature and humidity data

Returns

Temperature and humidity data or error

Example

use env_monitor::sensors::TemperatureSensor;
use env_monitor::sensors::dht11::Dht11Sensor;

let sensor = Dht11Sensor::new(17);
match sensor.read() {
    Ok(data) => println!("Temperature: {}°C, Humidity: {}%", data.temperature, data.humidity),
    Err(e) => println!("Read failed: {}", e),
}

fn read_async<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Dht11Data, SensorError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Asynchronously read temperature and humidity data

Returns

Temperature and humidity data or error

Example

use env_monitor::sensors::TemperatureSensor;
use env_monitor::sensors::dht11::Dht11Sensor;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let sensor = Dht11Sensor::new(17);
    match sensor.read_async().await {
        Ok(data) => println!("Temperature: {}°C, Humidity: {}%", data.temperature, data.humidity),
        Err(e) => println!("Read failed: {}", e),
    }
    Ok(())
}