VEML6075 UV Sensor

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VEML6075 UV Sensor

This documentation includes installation guidelines and sample code for your hardware.

Windows 10 IoT Core Library
VEML6075Sensor library is responsible for communicating with the VEML6075 UV sensor.
To use the library, add the following using statement to the top of your C# code.
using TurtaIoTHAT;
Then, create an instance of the VEML6075Sensor class.
VEML6075Sensor veml;
Now you're ready to access the library by calling the veml instance.
Initialization
VEML6075Sensor
Initiates the VEML6075 sensor to get UVA, UVB and UVIndex.
VEML6075Sensor()
Parameters
None
​
Basic Members
Calculate Average UV Index
Calculates the Average UV Index.
double Calculate_Average_UV_Index()
Parameters
None
Returns
Double: Average UV Index.
​
Calculate UV Index A
Calculates the UV Index A.
double Calculate_UV_Index_A()
Parameters
None
Returns
Double: UV Index A.
​
Calculate UV Index B
Calculates the UV Index B.
double Calculate_UV_Index_B()
Parameters
None
Returns
Double: UV Index B.
​
Advanced Members
Configure Sensor
Configures the VEML6075 sensor. Verifies if the settings are stored.
async Task<bool> Config(IntegrationTime UV_IT, DynamicSetting HD, Trigger UV_TRIG, ActiveForceMode UV_AF, PowerMode SD)
Parameters
IntegrationTime UV_IT: UV integration time.
DynamicSetting HD: Dynamic setting.
Trigger UV_TRIG: Measurement trigger.
ActiveForceMode UV_AF: Active force mode.
PowerMode SD: Power mode.
Returns
Bool: True if settings are stored. False if not.
​
Trigger One Measurement
Triggers one time measurement for Active Force Mode enabled scenarios.
void TriggerOneMeasurement()
Parameters
None
Returns
None
​
Calculate Compensated UVA
Calculates compensated UVA.
double Calculate_Compensated_UVA()
Parameters
None
Returns
Double: Compensated UVA.
​
Calculate Compensated UVB
Calculates compensated UVB.
double Calculate_Compensated_UVB()
Parameters
None
Returns
Double: Compensated UVB
​
Read RAW UVA
Reads RAW UVA.
UInt16 Read_RAW_UVA()
Parameters
None
Returns
UInt16: RAW UVA Value.
​
Read RAW UVB
Reads RAW UVB.
UInt16 Read_RAW_UVB()
Parameters
None
Returns
UInt16: RAW UVB Value.
​
Read RAW UVD
Reads RAW UVD.
UInt16 Read_RAW_UVD()
Parameters
None
Returns
UInt16: RAW UVD Value.
​
Read RAW UV COMP 1
Reads Noise Compensation Channel 1 data which allows only visible noise to pass through.
UInt16 Read_RAW_UVCOMP1()
Parameters
None
Returns
UInt16: UV Comp 1 Value.
​
Read RAW UV COMP 2
Reads Noise Compensation Channel 2 data which allows only infrared noise to pass through.
UInt16 Read_RAW_UVCOMP2()
Parameters
None
Returns
UInt16: UV Comp 2 Value.
​
Disposal
To clean up the resources used by the class, call the Dispose() method it when the application is closing.
void Dispose()
This method cleans the resources used by the class.
Samples
You can copy the example code from https://github.com/Turta-io/IoTHAT/tree/master/Samples/Windows10IoTCore address. There is one example of this library.
VEML6075 Sample App
This application demonstrates reading UV data from the sensor.
To run the example:
1.Open the sample project you downloaded.
2.Make sure "ARM" is selected from the solution platforms selection.
3.Deploy the sample to the Raspberry Pi using the "F5" key.
Sample Code
MainPage.xaml.cs
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
using Windows.UI.Xaml.Controls;
using TurtaIoTHAT;
​
namespace VEML6075SampleApp
{
    public sealed partial class MainPage : Page
    {
        // VEML6075 Sensor
        static VEML6075Sensor veml;
​
        // Sensor timer
        Timer sensorTimer;
​
        public MainPage()
        {
            this.InitializeComponent();
​
            // Initialize sensor and timer
            Initialize();
        }
​
        private async void Initialize()
        {
            // Initialize and configure sensor
            await InitializeVEML6075();
​
            // Configure timer to 2000ms delayed start and 2000ms interval
            sensorTimer = new Timer(new TimerCallback(SensorTimerTick), null, 2000, 2000);
        }
​
        private async Task InitializeVEML6075()
        {
            // Create sensor instance
            veml = new VEML6075Sensor();
​
            // Advanced sensor configuration
            await veml.Config(
                VEML6075Sensor.IntegrationTime.IT_800ms,
                VEML6075Sensor.DynamicSetting.High,
                VEML6075Sensor.Trigger.NoActiveForceTrigger,
                VEML6075Sensor.ActiveForceMode.NormalMode,
                VEML6075Sensor.PowerMode.PowerOn
                );
        }
​
        private static void SensorTimerTick(object state)
        {
            // Write sensor data to output / immediate window
            Debug.WriteLine("UVA........: " + veml.Read_RAW_UVA().ToString());
            Debug.WriteLine("UVB........: " + veml.Read_RAW_UVB().ToString());
            Debug.WriteLine("UVA Index..: " + veml.Calculate_UV_Index_A().ToString());
            Debug.WriteLine("UVB Index..: " + veml.Calculate_UV_Index_B().ToString());
            Debug.WriteLine("UV Index...: " + veml.Calculate_Average_UV_Index().ToString());
            Debug.WriteLine("-----");
        }
    }
}
Result
When you run the sample, it prints the UV data to the Visual Studio Output / Immediate Window.
UVA........: 1.2345
UVB........: 1.2345
UVA Index..: 1.2345
UVB Index..: 1.2345
UV Index...: 1.2345
-----
To stop the application, use the "Stop" button on the Visual Studio.