[−][src]Crate veml6075

This is a platform agnostic Rust driver for the VEML6075 UVA and UVB light sensor, based on the embedded-hal traits.

This driver allows you to:

Enable/disable the sensor. See: enable().
Read calibrated UVA, UVB and UV index measurement. See: read().
Read raw measurement. See: read_uva_raw().
Set integration time. See: set_integration_time().
Set dynamic setting. See: set_dynamic_setting().
Change operating mode. See: set_mode().
Trigger measurement when on active force mode. See: trigger_measurement().
Read the device id. See: read_device_id().

The device

The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers,and analog / digital circuits into a single chip using a CMOS process. When the UV sensor is applied, it is able to detect UVA and UVB intensity to provide a measure of the signal strength as well as allowing for UVI measurement. The VEML6075 provides excellent temperature compensation capability for keeping the output stable under changing temperature. VEML6075's functionality is easilyoperated via the simple command format of I2C (SMBus compatible) interface protocol. VEML6075's operating voltage ranges from 1.7 V to 3.6 V.

Datasheet:

VEML6075

Application note:

Designing the VEML6075 into an Application

Usage examples (see also examples folder)

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

Read calibrated UVA, UVB and UV index

Import this crate and an embedded_hal implementation, then instantiate the device:

extern crate linux_embedded_hal as hal;
extern crate veml6075;
use veml6075::{Calibration, Veml6075};

let dev = hal::I2cdev::new("/dev/i2c-1").unwrap();
let mut sensor = Veml6075::new(dev, Calibration::default());
let m = sensor.read().unwrap();
println!("UVA: {:2}, UVB: {:2}, UVI: {:2}", m.uva, m.uvb, m.uv_index);

Set integration time to 400ms

extern crate linux_embedded_hal as hal;
extern crate veml6075;
use veml6075::{Calibration, IntegrationTime, Veml6075};

let dev = hal::I2cdev::new("/dev/i2c-1").unwrap();
let mut sensor = Veml6075::new(dev, Calibration::default());
sensor.set_integration_time(IntegrationTime::Ms400).unwrap();

Set high dynamic setting

extern crate linux_embedded_hal as hal;
extern crate veml6075;
use veml6075::{Calibration, DynamicSetting, Veml6075};

let dev = hal::I2cdev::new("/dev/i2c-1").unwrap();
let mut sensor = Veml6075::new(dev, Calibration::default());
sensor.set_dynamic_setting(DynamicSetting::High).unwrap();

Change mode to active force (one-shot) and trigger a measurement

extern crate linux_embedded_hal as hal;
extern crate veml6075;
use veml6075::{Calibration, Mode, Veml6075};

let dev = hal::I2cdev::new("/dev/i2c-1").unwrap();
let mut sensor = Veml6075::new(dev, Calibration::default());
sensor.set_mode(Mode::ActiveForce).unwrap();
loop {
    sensor.trigger_measurement().unwrap();
    // wait until measurement is ready (integration time)
    let m = sensor.read().unwrap();
    println!("Measurements UVA: {:2}, UVB: {:2}", m.uva, m.uvb);
}

Read raw measurements for UVA and UVB

extern crate linux_embedded_hal as hal;
extern crate veml6075;
use veml6075::{Calibration, Veml6075};

let dev = hal::I2cdev::new("/dev/i2c-1").unwrap();
let mut sensor = Veml6075::new(dev, Calibration::default());
let uva = sensor.read_uva_raw().unwrap();
let uvb = sensor.read_uvb_raw().unwrap();
println!("Measurements UVA: {}, UVB: {}", uva, uvb);

Structs

Calibration	Calibration coefficients
Measurement	Calibrated Measurement
Veml6075	Veml6075 device driver.

Enums

DynamicSetting	Dynamic setting
Error	All possible errors in this crate
IntegrationTime	Integration time
Mode	Operating mode