public void Start(TracingInformation tracingInformation) { if (tracingInformation == null || _enabled) { return; } _tracingInformation = tracingInformation; _peripheralManager.RemoveAllServices(); CBUUID uuidService = CBUUID.FromString(tracingInformation.ServiceId); CBUUID uuidCharacteristic = CBUUID.FromString(tracingInformation.CharacteristicId); var data = NSData.FromArray(PayloadFormatter.GetBytesToSend(new PackageData(tracingInformation.DeviceId))); var characteristic = new CBMutableCharacteristic(uuidCharacteristic, CBCharacteristicProperties.Read, data, CBAttributePermissions.Readable); var service = new CBMutableService(uuidService, true); service.Characteristics = new CBCharacteristic[] { characteristic }; _peripheralManager.AddService(service); StartAdvertisingOptions advData = new StartAdvertisingOptions { ServicesUUID = new CBUUID[] { uuidService } }; _peripheralManager.StartAdvertising(advData); TracingState.Instance.SetAdvertisingState(true); _enabled = true; _logger.LogDebug("Advertising starting. DeviceId: " + _tracingInformation.DeviceId); }