Crate sen66_interface

SEN66 Driver

A driver for interacting with Sensirion’s SEN66 environment sensing platform via I2C. The driver is based on the embedded-hal traits and offers a synchronous and asynchronous interface.

Provides a full implementation of the SEN66 features:

• Measure environment parameters:
  • Mass concentrations PM1.0, PM2.5, PM4.0, PM10.0 in ug/m³
  • Number concentrations PM0.5, PM1.0, PM2.5, PM4.0, PM10.0 in p/cm³
  • Ambient relative humidity in %
  • Ambient temperature in °C
  • VOC Index around 100
  • NOx Index around 1
  • Raw VOC ticks
  • Raw NOx ticks
  • CO2 in ppm
• Configure VOC, NOx, CO2 and Temperature determination
• Perform forced CO2 recalibration, SHT heating and fan cleaning
• Read out device information
  • Serial Number
  • Product Name
  • Device Status

Example

This example showcases how to use the SEN66 with a ESP32-C6-DevKitM-1 using embassy.

use sen66_interface::asynch::Sen66;

#[esp_hal_embassy::main]
async fn main(spawner: Spawner) {
    let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
    let peripherals = esp_hal::init(config);

    let timer0 = esp_hal::timer::systimer::SystemTimer::new(peripherals.SYSTIMER);
    esp_hal_embassy::init(timer0.alarm0);

    let i2c = esp_hal::i2c::master::I2c::new(
        peripherals.I2C0,
        esp_hal::i2c::master::Config::default()
        ).unwrap()
        .into_async()
        .with_sda(peripherals.GPIO22)
        .with_scl(peripherals.GPIO23);

    let mut sensor = Sen66::new(embassy_time::Delay, i2c);

    // Provide enough time to start up after power-on
    embassy_time::Timer::after(embassy_time::Duration::from_millis(100)).await;

    sensor.get_product_name().await.unwrap()
}

Feature Flags

• async: Provides an async interface, enabled by default.
• blocking: Provides a blocking interface.
• defmt: Provides support for defmt.

Contributing

If you want to contribute, open a Pull Request with your suggested changes and ensure that the integration pipeline runs.

• Commits should adhere to the Conventional Commits specification
• The integration pipeline must pass.
• Test coverage should not degrade.
• At least one review is required

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT licenses (LICENSE-MIT or http://opensource.org/licenses/MIT)

SPDX-License-Identifier: Apache-2.0 OR MIT

Modules

asynch

Async interface for the SEN66 Implementation of the SCD30’s interface

command

SEN66 I2C Commands.

configuration

Data types for configuring the SEN66’s operations.

data

Data types for configuring the SEN66’s operations.

error

Errors emitted by this library.