private async Task <bool> WriteSensor(byte[] bytes, ServiceCharacteristicsEnum character)
{
Debug.WriteLine("Begin write sensor: " + SensorIndex.ToString());
bool ret = false;
if (GattService != null)
{
GattCharacteristic characteristic = null;
GattCharacteristicProperties flag = GattCharacteristicProperties.Write;
switch (character)
{
case ServiceCharacteristicsEnum.Data:
characteristic = this.Data;
break;
case ServiceCharacteristicsEnum.Notification:
flag = GattCharacteristicProperties.Notify;
characteristic = this.Notification;
break;
case ServiceCharacteristicsEnum.Configuration:
characteristic = this.Configuration;
break;
case ServiceCharacteristicsEnum.Period:
characteristic = this.Period;
break;
case ServiceCharacteristicsEnum.Address:
characteristic = this.Address;
break;
case ServiceCharacteristicsEnum.Device_Id:
characteristic = this.Device_Id;
break;
}
if (characteristic != null)
{
if (characteristic.CharacteristicProperties.HasFlag(flag))
{
var writer = new Windows.Storage.Streams.DataWriter();
writer.WriteBytes(bytes);
var status = await characteristic.WriteValueAsync(writer.DetachBuffer());
if (status == GattCommunicationStatus.Success)
{
ret = true;
}
}
}
}
Debug.WriteLine("End write sensor: " + SensorIndex.ToString());
return(ret);
}
private async Task <bool> ReadSensor(byte[] bytes, ServiceCharacteristicsEnum character)
{
Debug.WriteLine("Begin read sensor: " + SensorIndex.ToString());
bool ret = false;
if (GattService != null)
{
GattCharacteristic characteristic = null;
GattCharacteristicProperties flag = GattCharacteristicProperties.Read;
switch (character)
{
case ServiceCharacteristicsEnum.Data:
characteristic = this.Data;
break;
case ServiceCharacteristicsEnum.Notification:
characteristic = this.Notification;
break;
case ServiceCharacteristicsEnum.Configuration:
characteristic = this.Configuration;
break;
case ServiceCharacteristicsEnum.Period:
characteristic = this.Period;
break;
case ServiceCharacteristicsEnum.Address:
characteristic = this.Address;
break;
case ServiceCharacteristicsEnum.Device_Id:
characteristic = this.Device_Id;
break;
}
if (characteristic != null)
{
if (characteristic.CharacteristicProperties.HasFlag(flag))
{
var result = await characteristic.ReadValueAsync(Windows.Devices.Bluetooth.BluetoothCacheMode.Uncached);
var status = result.Status;
if (status == GattCommunicationStatus.Success)
{
ret = true;
var dat = result.Value;
}
}
}
}
Debug.WriteLine("End read sensor: " + SensorIndex.ToString());
return(ret);
}
//Constants for the Sensor device
/// <summary>
/// The relative "address" of the characteristic in the service.
/// There is an overlap.
/// </summary>
/// <param name="characteristic">A Service Characteristic</param>
/// <returns>The relative "address"</returns>
public int ReAddr(ServiceCharacteristicsEnum characteristic)
{
int ret = (int)characteristic;
switch (characteristic)
{
case ServiceCharacteristicsEnum.Address:
ret = 2;
break;
case ServiceCharacteristicsEnum.Device_Id:
ret = 3;
break;
}
return(ret);
}
/// <summary>
/// Read a readable sensor characteristic, typically the Data characteristic
/// </summary>
/// <param name="character">The characteristic to read from.</param>
/// <returns>Buffer for data. Is created in the call</returns>
public async Task <byte[]> ReadSensorBase(ServiceCharacteristicsEnum character)
{
byte[] bytes = null;
Debug.WriteLine("Begin ReadSensorBase: " + SensorIndex.ToString());
bool ret = false;
try
{
if (GattService != null)
{
bytes = new byte[DataLength[(int)SensorIndex]];
GattCharacteristic characteristic = null;
GattCharacteristicProperties flag = GattCharacteristicProperties.Read;
switch (character)
{
case ServiceCharacteristicsEnum.Data:
characteristic = this.Data;
break;
case ServiceCharacteristicsEnum.Notification:
characteristic = this.Notification;
break;
case ServiceCharacteristicsEnum.Configuration:
characteristic = this.Configuration;
break;
case ServiceCharacteristicsEnum.Period:
characteristic = this.GattCharacteristicPeriod;
break;
case ServiceCharacteristicsEnum.Address:
characteristic = this.Address;
break;
case ServiceCharacteristicsEnum.Device_Id:
characteristic = this.Device_Id;
break;
}
if (characteristic != null)
{
if (characteristic.CharacteristicProperties.HasFlag(flag))
{
GattReadResult result = null;
try
{
result = await characteristic.ReadValueAsync(Windows.Devices.Bluetooth.BluetoothCacheMode.Uncached);
}
catch (Exception ex)
{
Debug.WriteLine("Error-1: ReadSensorBase(): " + SensorIndex.ToString() + " " + ex.Message);
result = await characteristic.ReadValueAsync(Windows.Devices.Bluetooth.BluetoothCacheMode.Cached);
}
if (result != null)
{
var status = result.Status;
if (status == GattCommunicationStatus.Success)
{
ret = true;
var dat = result.Value;
var xx = dat.GetType();
var yy = dat.Capacity;
var zz = dat.Length;
bytes = new byte[result.Value.Length];
Windows.Storage.Streams.DataReader.FromBuffer(result.Value).ReadBytes(bytes);
}
}
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Error: ReadSensorBase(): " + SensorIndex.ToString() + " " + ex.Message);
}
Debug.WriteLine("End ReadSensorBase: " + SensorIndex.ToString());
if (!ret)
{
bytes = null;
}
return(bytes);
}
