private void OnNotification(BleGattCharacteristic characteristic, BleValue value)
{
string val = value.ToString();
val += "";
}
/// <summary>
/// Get the Open Vario device identification information
/// </summary>
/// <returns>Identification information if the operation succeeded, null otherwise</returns>
public async Task <IdentificationInfo> GetIdentificationInfo()
{
// Check if identification information has already been retrieved
if (_identification_info == null)
{
// List characteristics
await ListCharacteristics();
// Look for the command and identification information characteristics
bool found = true;
BleGattCharacteristic command_char = null;
BleGattCharacteristic info_char = null;
try
{
command_char = BleCharacteristics[CommandGuid];
info_char = BleCharacteristics[IdentificationInfoGuid];
}
catch (KeyNotFoundException)
{
found = false;
}
if (found)
{
// Read identification information
bool success = true;
BleValue read_val = new BleValue();
_identification_info = new IdentificationInfo();
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)0u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.GattVersion = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)1u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.SoftwareVersion = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)2u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.SoftwareManufacturerName = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)3u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.HardwareVersion = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)4u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.HardwareManufacturerName = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)5u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.HardwareSerialNumber = read_val.ToString();
}
success = success && await BleDevice.WriteValueAsync(command_char, new BleValue((byte)6u));
success = success && await BleDevice.ReadValueAsync(info_char, read_val);
if (success)
{
_identification_info.HardwareManufacturingDate = read_val.ToString();
}
if (!success)
{
_identification_info = null;
}
}
}
// Return a copy of the identification information
IdentificationInfo identification_info = null;
if (_identification_info != null)
{
identification_info = (_identification_info.Clone() as IdentificationInfo);
}
return(identification_info);
}