sensorfusion calibration

Comments

• Eric

  December 2018

  Hrm...not sure what could be wrong. The gyro should be the first one to reach high accuracy calibration and fairly quickly too.

  Does the accuracy ever change?
• pvandoorn

  December 2018 edited December 2018

  The gyroscope value does not change. The Accerometer and Magnometer do change depending on my calibration. Here is my full code taken from the C# tutorial:

  namespace StarterApp {

  public sealed partial class DeviceSetup : Page {
      private IMetaWearBoard metawear;
      private ISensorFusionBosch sensorFusion;
  
      public DeviceSetup() {
          InitializeComponent();
      }
  
      protected async override void OnNavigatedTo(NavigationEventArgs e) {
          base.OnNavigatedTo(e);
  
          metawear = MbientLab.MetaWear.Win10.Application.GetMetaWearBoard(e.Parameter as BluetoothLEDevice);
          sensorFusion = metawear.GetModule<ISensorFusionBosch>();
          sensorFusion.Configure();
  
          var cali = await sensorFusion.ReadCalibrationStateAsync();
          System.Diagnostics.Debug.WriteLine("Cali :" + cali); //outputs Calibration in Debug
  
          await sensorFusion.EulerAngles.AddRouteAsync(source =>
          source.Stream(async data => await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.High, () =>
          {
              textBox1.Text = data.Value<EulerAngles>().ToString(); //outputs Eulerangles in a Textbox
           })));
                  }
      private void Start_Click(object sender, RoutedEventArgs e) 
      {
          sensorFusion.Start();
          sensorFusion.EulerAngles.Start();
      }
  
      private void Stop_Click(object sender, RoutedEventArgs e)
      {
          sensorFusion.Stop();
          sensorFusion.EulerAngles.Stop();
  
      }
  
      private void Back_Click(object sender, RoutedEventArgs e) {
          if (!metawear.InMetaBootMode) {
              metawear.TearDown();
              metawear.GetModule<IDebug>().DisconnectAsync();
          }
          Frame.GoBack();
      }
  }
  
• Eric

  December 2018

  The calibrate state should be polled until it the sensors report high accuracy. We are adding a function to stramline this process, but you will have to do this manually for now.

  Modify your code so it does the state polling and post the result history.