private void DeviceOnServicesDiscovered(object sender, EventArgs e)
{
_moCoBusService = _device.Services
.FirstOrDefault(svc => svc.ID == BleConstants.ServiceMoCoBus);
if (_moCoBusService == null)
return;
_moCoBusService.CharacteristicsDiscovered += MoCoBusServiceOnCharacteristicsDiscovered;
_moCoBusService.DiscoverCharacteristics();
}
public Sensor(ble.IAdapter adapter, ble.IDevice device, ble.IService service)
{
BleDevice = device;
Loading = true;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Loading"));
this.service = service;
switch (service.Name)
{
case "TI SensorTag Barometer":
ImageId = "Pressure";
break;
case "TI SensorTag Humidity":
ImageId = "Humidity";
break;
case "TI SensorTag Infrared Thermometer":
ImageId = "Thermometer";
break;
}
service.CharacteristicsDiscovered += async(s, e) =>
{
foreach (var characteristic in service.Characteristics)
{
if (characteristic.Name.Contains("Data"))
{
dataChar = await characteristic.ReadAsync();
await Task.Delay(1000);
}
else if (characteristic.Name.Contains("On/Off"))
{
onOffChar = await characteristic.ReadAsync();
onOffChar.Write(new byte[] { 0x01 });
await Task.Delay(1000);
}
else if (characteristic.Name.Contains("Sample Rate"))
{
sampleChar = await characteristic.ReadAsync();
await Task.Delay(1000);
}
}
if (dataChar.CanUpdate)
{
valueUpdatedHandler = (se, ea) =>
{
Data = Decode(dataChar);
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Data"));
};
dataChar.ValueUpdated += valueUpdatedHandler;
dataChar = await dataChar.ReadAsync();
await Task.Delay(2000);
dataChar.StartUpdates();
Loading = false;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Loading"));
}
};
service.DiscoverCharacteristics();
}
void OnDisconnect()
{
_moCoBusTxCharacteristic = null;
if (_moCoBusRxCharacteristic != null)
{
try
{
_moCoBusRxCharacteristic.ValueUpdated -= MoCoBusRxCharacteristicOnValueUpdated;
}
catch (Exception)
{
// ignore
}
_moCoBusRxCharacteristic = null;
}
if (_moCoBusService != null)
{
try
{
_moCoBusService.CharacteristicsDiscovered -= MoCoBusServiceOnCharacteristicsDiscovered;
}
catch (Exception)
{
// ignore
}
_moCoBusService = null;
}
try
{
_device.ServicesDiscovered -= DeviceOnServicesDiscovered;
}
catch (Exception)
{
// ignore
}
ConnectionState = ConnectionState.Disconnected;
}
