 
 void setup() {
   Serial.begin(9600);
+  delay(1000);
   pinMode(ledPin, OUTPUT); // use the LED on pin 13 as an output
-
+  ledSignal(5,200);
   // begin initialization
   BLE.begin();
 
   // set the local name peripheral advertises
-  BLE.setLocalName("Blynk");
+  BLE.setLocalName("ANGU");
   // set the UUID for the service this peripheral advertises:
   BLE.setAdvertisedService(ledService);
 


  // add the service
  BLE.addService(ledService);

  ledCharacteristic.setValue(0);

  // start advertising
  BLE.advertise();

  Serial.println("Bluetooth device active, waiting for connections...");
}

void loop() {


  if (ledCharacteristic.written()) {
    // update LED, either central has written to characteristic or button state has changed
    Serial.println(ledCharacteristic.valueLength());
    Serial.println(ledCharacteristic.value());
    Serial.println(ledCharacteristic.value());
    if (ledCharacteristic.value()) {
      Serial.println("LED on");
