ArduinoBLE - bleDevice.discoverService()

bleDevice.discoverService(serviceUuid)

  // begin initialization
  if (!BLE.begin()) {
    Serial.println("starting Bluetooth® Low Energy module failed!");

    while (1);
  }

  Serial.println("BLE Central scan");

  // start scanning for peripheral
  BLE.scan();

  

  BLEDevice peripheral = BLE.available();

  if (peripheral) {
    // ...

    Serial.println("Connecting ...");

    if (peripheral.connect()) {
      Serial.println("Connected");
    } else {
      Serial.println("Failed to connect!");
      return;
    }

    // discover service attributes
    Serial.println("Discovering service attributes ...");
    if (peripheral.serviceUuid("fffe")) {
      Serial.println("Service attributes discovered");
    } else {
      Serial.println("Service attribute discovery failed!");
      peripheral.disconnect();
      return;
    }

    // ...
  }