private void btn_heartRate_Click(object sender, EventArgs e)
{
var hrValue = (HeartRateMode)HeartRateMode.Parse(typeof(HeartRateMode), lb_HeartRateSetter.SelectedItem.ToString());
var statusSetter = new SetHeatRate()
{
NewHeartRateMode = hrValue
};
var result = client.Send(1, statusSetter);
AddMessage(result);
}
/// <summary>
/// Gets the HeartRate Scanner readings: Use SpotMode to get one reading, ContnousMode to get the readings obtained in 20Seconds of Scan.
/// SleepMode is currently unsupported
/// </summary>
/// <returns>
/// List of int each representing an HeartRate reading.
/// </returns>
public Task <List <int> > GetHertRateScan(HeartRateMode mode)
{
band.CheckBandConnection();
var heartRateTCS = new TaskCompletionSource <List <int> >();
var heartRateReadings = new List <int>();
switch (mode)
{
case HeartRateMode.Spot:
{
//heartRateMode = HeartRateMode.Spot;
Task.Run(async() =>
{
try
{
var heartRateService = await band.device.GetServiceAsync(MiBandService.HeartRateService);
//Subscribe
var heartRateMeasurement = await heartRateService.GetCharacteristicAsync(MiBandCharacteristic.HeartRateMeasurement);
var descriptor = await heartRateMeasurement.GetDescriptorAsync(MiBandDescriptor.DescriptorUpdateNotification);
heartRateMeasurement.ValueUpdated += (o, args) =>
{
var data = args.Characteristic.Value;
if (data.Length == 2 && data[0] == 6)
{
int heartRate = data[1] & 0xFF;
heartRateReadings.Add(heartRate);
heartRateTCS.TrySetResult(heartRateReadings);
}
else
{
heartRateTCS.TrySetException(new Exception("HeartRate Data is Not Valid"));
}
};
await descriptor.WriteAsync(MiBandCommand.EnableNotifications);
await heartRateMeasurement.StartUpdatesAsync();
//Write
var controlPoint = await heartRateService.GetCharacteristicAsync(MiBandCharacteristic.HeartRateControlPoint);
await controlPoint.WriteAsync(MiBandCommand.StartHeartRateManual);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
throw;
}
});
return(heartRateTCS.Task);
}
case HeartRateMode.Countinous:
{
Task.Run(async() =>
{
var heartRateService = await band.device.GetServiceAsync(MiBandService.HeartRateService);
//Subscribe
var heartRateMeasurement = await heartRateService.GetCharacteristicAsync(MiBandCharacteristic.HeartRateMeasurement);
var descriptor = await heartRateMeasurement.GetDescriptorAsync(MiBandDescriptor.DescriptorUpdateNotification);
heartRateMeasurement.ValueUpdated += (o, args) =>
{
var data = args.Characteristic.Value;
if (data.Length == 2 && data[0] == 6)
{
int heartRate = data[1] & 0xFF;
heartRateReadings.Add(heartRate);
}
else
{
heartRateTCS.TrySetException(new Exception("HeartRate Data is Not Valid"));
}
};
await descriptor.WriteAsync(MiBandCommand.EnableNotifications);
await heartRateMeasurement.StartUpdatesAsync();
//Write
var controlPoint = await heartRateService.GetCharacteristicAsync(MiBandCharacteristic.HeartRateControlPoint);
await controlPoint.WriteAsync(MiBandCommand.StartHeartRateContinuous);
//TODO: Change to something better
await Task.Delay(20000);
heartRateTCS.SetResult(heartRateReadings);
});
return(heartRateTCS.Task);
}
}
return(null);
}
