ArduinoBLE - hasDescriptor

Check if a characteristic has a particular descriptor.

Syntax

bleCharacteristic.hasDescriptor(uuid)
bleCharacteristic.hasDescriptor(uuid, index)

Parameters

index: index of descriptor uuid: uuid (as a String)

Returns

true, if the characteristic has a matching descriptor, otherwise false.

Example


  if (characteristic.hasDescriptor("2901")) {
    Serial.println("characteristic has description descriptor");
  }