sudo /opt/node/bin/node test.js
State: poweredOn
Peripheral {
  _noble:
   Noble {
     state: 'poweredOn',
     address: '00:1a:7d:da:71:0e',
     _bindings:
      NobleBindings {
        _state: 'poweredOn',
        _addresses: [Object],
        _addresseTypes: [Object],
        _connectable: [Object],
        _pendingConnectionUuid: null,
        _connectionQueue: [],
        _handles: {},
        _gatts: {},
        _aclStreams: {},
        _signalings: {},
        _hci: [Hci],
        _gap: [Gap],
        _events: [Object],
        _eventsCount: 21,
        onSigIntBinded: [Function: bound ],
        _scanServiceUuids: [] },
     _peripherals:
      { '546c0e78f580': [Peripheral],
        '2c3b4ed055ef': [Peripheral],
        '9657a50ba6a4': [Peripheral],
        '123b6a1aee93': [Peripheral],
        '80eaca00d419': [Circular] },
     _services:
      { '546c0e78f580': {},
        '2c3b4ed055ef': {},
        '9657a50ba6a4': {},
        '123b6a1aee93': {},
        '80eaca00d419': {} },
     _characteristics:
      { '546c0e78f580': {},
        '2c3b4ed055ef': {},
        '9657a50ba6a4': {},
        '123b6a1aee93': {},
        '80eaca00d419': {} },
     _descriptors:
      { '546c0e78f580': {},
        '2c3b4ed055ef': {},
        '9657a50ba6a4': {},
        '123b6a1aee93': {},
        '80eaca00d419': {} },
     _discoveredPeripheralUUids:
      [ '546c0e78f580',
        '2c3b4ed055ef',
        '9657a50ba6a4',
        '123b6a1aee93',
        '80eaca00d419' ],
     _events:
      { warning: [Function: bound ],
        discover: [Function],
        stateChange: [Function] },
     _eventsCount: 3,
     _allowDuplicates: undefined },
  id: '80eaca00d419',
  uuid: '80eaca00d419',
  address: '80:ea:ca:00:d4:19',
  addressType: 'public',
  connectable: true,
  advertisement:
   { localName: 'IoT-DK-SFL',
     txPowerLevel: undefined,
     manufacturerData: <Buffer d2 00 00 d4 19>,
     serviceData: [],
     serviceUuids: [ '2ea7' ],
     solicitationServiceUuids: [],
     serviceSolicitationUuids: [] },
  rssi: -51,
  services: null,
  state: 'disconnected' }
Connected: null
Above to discoverServices