Eu quero conectar com periféricos ble. Mas meu código não chama a função didConect

este é o meu código:

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
 let device = (advertisementData as NSDictionary)
            .object(forKey: CBAdvertisementDataLocalNameKey)
            as? NSString

        if device?.contains(BEAN_NAME) == true {

            print("Did discover peripheral", peripheral)

            self.bluetoothManager.stopScan()
            self._peripheral = peripheral
            self._peripheral.delegate = self
            central.connect(peripheral, options: nil)
        }
}


func centralManager( central: CBCentralManager, didConnect peripheral: CBPeripheral) { //cant call this
        print("connected to \(BEAN_NAME)")
        peripheral.discoverServices(nil)
    }

Registros:

BLE service is powered on
Did discover peripheral <CBPeripheral: 0x1740eef00, identifier = 4872623B-F872-443A-8A96-F4E1F84D6841, name = GoDoor in  :), state = disconnected>