Scanned multiple device (same UUID) on Android

[fahami]

I write some code to scan BLE peripheral on background (using android alarm manager) but I had multiple scanned device with same UUID. I want to just get one result per UUID, any solution?

Code:
When code below changed, it will fire a code fireAlarm()

SwitchListTile(
 value: broadcastBLE.isBroadcasting,
 onChanged: (value) async {
   broadcastBLE.isBroadcasting = value;
   value
       ? await AndroidAlarmManager.oneShot(Duration(seconds: 2), 0, fireAlarm)
       : await AndroidAlarmManager.cancel(0);
 },
 title: Text("Aktifkan tracing"),
),

fireAlarm()

void fireAlarm() async {
BleManager bleManager = BleManager();
  await bleManager.createClient();
  try {
    print("Fired at ${DateTime.now()}");
    bleManager.startPeripheralScan(scanMode: ScanMode.lowLatency).listen((scanResult) {
      List parsed = scanResult.advertisementData.manufacturerData;
      if (parsed.length == 26) {
        final parsedSlave = Uuid.unparse(parsed.sublist(10, 26));
        print(parsedSlave);
      }
      Future.delayed(Duration(seconds: 4)).then((value) => bleManager.stopPeripheralScan());
    });
  } catch (e) {
    print(e);
  }
}

and i got duplicated 6 times same uuid "08957263-1010-0000-0000-00010064c570" here

I/flutter ( 4764): Fired at 2021-06-28 18:21:27.321030
D/com.polidea.flutter_ble_lib.FlutterBleLibPlugin( 4764): on native side observed method: startDeviceScan
D/BluetoothAdapter( 4764): isLeEnabled(): ON
D/BluetoothLeScanner( 4764): onClientRegistered() - status=0 clientIf=9 mClientIf=0
(6) I/flutter ( 4764): 08957263-1010-0000-0000-00010064c570
(2) D/com.polidea.flutter_ble_lib.FlutterBleLibPlugin( 4764): on native side observed method: stopDeviceScan