async function getCharacteristic(connectedPeripheral, serviceUuid, characteristicUuid) {
  // Discovering service
  const services = await discoverServices(connectedPeripheral, [serviceUuid]);

  // Discorvering characteristic
  const characteristics = await discoverCharacteristics(services[serviceUuid], [characteristicUuid]);
  return characteristics[characteristicUuid];
}
@description Connects to peripheral, discovers all needed, to applu action.
@param {string} connectedPeripheral - Connected Noble peripheral.
@param {string} serviceUuid - Service UUID.
@param {string} characteristicUuid - Characteristic UUID.
@returns {Promise<object>} The requs=est  characteristic.
@example
await getCharacteristic({ uuid: 'peripheral' }, 'service1', 'char1')