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Reference > Libraries > Arduinoble > Ble.scanforuuid

ArduinoBLE - BLE.scanForUuid()

Start scanning for Bluetooth® Low Energy devices that are advertising with a particular (service) UUID.

Syntax

BLE.scanForUuid(uuid)
BLE.scanForUuid(uuid, withDuplicates)

Parameters

  • uuid: (service) UUID (as a String) to filter for
  • withDuplicates: optional, defaults to false. If true, advertisements received more than once will not be filtered.

Returns

  • 1 on success,
  • 0 on failure.

Example


  // 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.scanForUuid("aa10");

  

  BLEDevice peripheral = BLE.available();

  if (peripheral) {
     // ...
  }