AminPlusPlus

fileprivate var ledMask: UInt8    = 0
fileprivate let digitalBits       = 2

func setDigitalOutput(_ index: Int, on: Bool, characteristic  :CBCharacteristic) {
  
  let shift = UInt(index) * UInt(digitalBits)
  var mask = ledMask
  
  if on {
    mask = mask | UInt8(1 << shift)

AminPlusPlus

func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
  
   if let charac = service.characteristics {
    for characteristic in charac {
      //MARK:- Light Value
      if characteristic.uuid == Digital {
      self.lighCharacteristics = characteristic
      }
    }
  }

AminPlusPlus

//MARK:- CBPeripheralDelegate
extension ViewController : CBPeripheralDelegate {
      
      func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
      
       if let services = peripheral.services {
      
       //discover characteristics of services 
       for service in services {
        peripheral.discoverCharacteristics(nil, for: service)

AminPlusPlus

func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
  //discover all service
  
  peripheral.discoverServices(nil)
  peripheral.delegate = self

}

AminPlusPlus

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
  guard peripheral.name != nil else {return}
  
  if peripheral.name! == "Thunder Sense #33549" {
  
    print("Sensor Found!")
    //stopScan
    cbCentralManager.stopScan()
    
    //connect

AminPlusPlus

override func viewDidLoad() {
super.viewDidLoad()
   //Start manager
   cbCentralManager = CBCentralManager(delegate: self, queue: nil)
}
extension ViewController :  CBCentralManagerDelegate {
func centralManagerDidUpdateState(_ central: CBCentralManager) {
 if central.state == .poweredOn {
   central.scanForPeripherals(withServices: nil, options: nil)
   print("Scanning...")