This is a prerelease version of Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter.
There is a newer version of this package available.
See the version list below for details.
dotnet add package Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter --version
NuGet\Install-Package Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter -Version
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter --version
#r "nuget: Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter,"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter as a Cake Addin
#addin nuget:?package=Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter&version=

// Install Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter as a Cake Tool
#tool nuget:?package=Meadow.Foundation.Sensors.Environmental.AtlasScientificGravityDOMeter&version=


Atlas Scientific analog gravity dissolved oxygen sensor

The AtlasScientificGravityDOMeter library is designed for the Wilderness Labs Meadow .NET IoT platform and is part of Meadow.Foundation.

The Meadow.Foundation peripherals library is an open-source repository of drivers and libraries that streamline and simplify adding hardware to your C# .NET Meadow IoT application.

For more information on developing for Meadow, visit

To view all Wilderness Labs open-source projects, including samples, visit


AtlasScientificGravityDOMeter sensor;

public override Task Initialize()

    sensor = new AtlasScientificGravityDOMeter(Device.Pins.A01);
    sensor.CalibrationInAir = new Voltage(0.04, Voltage.UnitType.Volts);

    // Example that uses an IObservable subscription to only be notified when the saturation changes
    var consumer = AtlasScientificGravityDOMeter.CreateObserver(
        handler: result =>
            string oldValue = (result.Old is { } old) ? $"{old * 100:n1}" : "n/a";
            string newValue = $"{result.New * 100:n1}";
            Resolver.Log.Info($"New: {newValue}%, Old: {oldValue}%");
        filter: null

    // optional classical .NET events can also be used:
    sensor.Updated += (sender, result) =>
        string oldValue = (result.Old is { } old) ? $"{old * 100:n0}%" : "n/a";
        Resolver.Log.Info($"Updated - New: {result.New * 100:n0}%, Old: {oldValue}");

    return Task.CompletedTask;

public override async Task Run()

    await ReadSensor();

    //example calibration setting, ensure the sensor is set up for calibration 
    var calibrationVoltage = await sensor.GetCurrentVoltage();
    sensor.CalibrationInAir = calibrationVoltage;

    Resolver.Log.Info($"Calibration voltage: {calibrationVoltage.Volts}V");


protected async Task ReadSensor()
    var saturation = await sensor.Read();
    Resolver.Log.Info($"Initial saturation: {saturation * 100:N1}%");

How to Contribute

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If you have questions or need assistance, please join the Wilderness Labs community on Slack.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
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Version Downloads Last updated 65 4/23/2024
1.10.2 72 4/17/2024 60 4/15/2024 56 4/11/2024 54 4/5/2024
1.10.0 92 3/26/2024 67 3/25/2024 61 3/19/2024 46 3/13/2024 98 3/6/2024 73 3/6/2024 73 3/1/2024
1.9.0 100 2/27/2024 67 2/23/2024 60 2/22/2024 63 2/20/2024 64 2/13/2024 67 2/6/2024 56 2/1/2024 63 1/24/2024 112 1/20/2024
1.8.0 149 1/16/2024
1.7.0 108 1/9/2024 89 1/3/2024 80 12/27/2023 84 12/20/2023 75 12/19/2023 93 12/12/2023
1.6.0 217 12/6/2023 87 12/4/2023