Rust HDC2080, HDC2021 and HDC2010 Low-Power Humidity and Temperature Digital Sensor Driver

This is a platform agnostic Rust driver for the HDC2080, HDC2021 and HDC2010 low-power humidity and temperature digital sensor using the embedded-hal traits.

This driver allows you to:

• Set the measurement mode. Temperature only or temperature and humidity. See: set_measurement_mode().
• Make one shot measurement. See: read().
• Read the data and interrupt status. See: status().
• Trigger a software reset. See: software_reset().
• Read the manufacturer ID. See: manufacturer_id().
• Read the device ID. See: device_id().

The devices

The HDC2080 device is an integrated humidity and temperature sensor that provides high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture.

The HDC2080 digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to be continuously monitoring the system. Combined with programmable sampling intervals, a low power consumption, and a support for a 1.8-V supply voltage, the HDC2080 is designed for battery-operated systems.

This driver is compatible with HDC2080, HDC2021 and HDC2010.

Datasheets: HDC2080, HDC2021, HDC2010

Usage

To use this driver, import this crate and an embedded_hal implementation, then instantiate the device.

Please find additional examples using hardware in this repository: driver-examples

use embedded_hal::blocking::delay::DelayMs;
use hdc20xx::{Hdc20xx, SlaveAddr};
use linux_embedded_hal::{Delay, I2cdev};

fn main() {
    let mut delay = Delay {};
    let dev = I2cdev::new("/dev/i2c-1").unwrap();
    let address = SlaveAddr::default();
    let mut sensor = Hdc20xx::new(dev, address);
    loop {
        loop {
            let result = sensor.read();
            match result {
                Err(nb::Error::WouldBlock) => delay.delay_ms(100_u8),
                Err(e) => {
                    println!("Error! {:?}", e);
                }
                Ok(data) => {
                    println!(
                        "Temperature: {:2}°C, Humidity: {:2}%",
                        data.temperature,
                        data.humidity.unwrap()
                    );
                }
            }
        }
    }
}

Support

For questions, issues, feature requests, and other changes, please file an issue in the github project.

License

Licensed under either of

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

at your option.

Contributing

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.