nfpaz-mac01:noble nfpaz$ DEBUG=ble-serial node ble-firmata-test
  ble-serial found peripheral: +0ms { localName: 'FIRMATA',
  txPowerLevel: undefined,
  manufacturerData: undefined,
  serviceData: [],
  serviceUuids: [ '6e400001b5a3f393e0a9e50e24dcca9e' ] }
  ble-serial connected +241ms undefined
  ble-serial discoverServices +2ms null [ Service {
    _noble: 
     Noble {
       state: 'poweredOn',
       address: '60:f8:1d:af:69:c5',
       _bindings: [Object],
       _peripherals: [Object],
       _services: [Object],
       _characteristics: [Object],
       _descriptors: [Object],
       _discoveredPeripheralUUids: [Object],
       _events: [Object],
       _eventsCount: 3,
       _allowDuplicates: false },
    _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
    uuid: '6e400001b5a3f393e0a9e50e24dcca9e',
    name: null,
    type: null,
    includedServiceUuids: null,
    characteristics: null } ]
  ble-serial found service +2ms Service {
  _noble: 
   Noble {
     state: 'poweredOn',
     address: '60:f8:1d:af:69:c5',
     _bindings: 
      NobleBindings {
        _peripherals: [Object],
        _xpcConnection: [Object],
        _events: [Object],
        _eventsCount: 38,
        sendCBMsg: [Function],
        init: [Function],
        startScanning: [Function],
        stopScanning: [Function],
        connect: [Function],
        disconnect: [Function],
        updateRssi: [Function],
        discoverServices: [Function],
        discoverIncludedServices: [Function],
        discoverCharacteristics: [Function],
        read: [Function],
        write: [Function],
        broadcast: [Function],
        notify: [Function],
        discoverDescriptors: [Function],
        readValue: [Function],
        writeValue: [Function],
        readHandle: [Function],
        writeHandle: [Function] },
     _peripherals: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _services: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _characteristics: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _descriptors: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _discoveredPeripheralUUids: [ 'dc7104dfcff6465b8e74903f4008afef' ],
     _events: 
      { warning: [Function: bound ],
        stateChange: [Function],
        discover: [Function] },
     _eventsCount: 3,
     _allowDuplicates: false },
  _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
  uuid: '6e400001b5a3f393e0a9e50e24dcca9e',
  name: null,
  type: null,
  includedServiceUuids: null,
  characteristics: null }
  ble-serial found characteristics +104ms null [ Characteristic {
    _noble: 
     Noble {
       state: 'poweredOn',
       address: '60:f8:1d:af:69:c5',
       _bindings: [Object],
       _peripherals: [Object],
       _services: [Object],
       _characteristics: [Object],
       _descriptors: [Object],
       _discoveredPeripheralUUids: [Object],
       _events: [Object],
       _eventsCount: 3,
       _allowDuplicates: false },
    _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
    _serviceUuid: '6e400001b5a3f393e0a9e50e24dcca9e',
    uuid: '6e400002b5a3f393e0a9e50e24dcca9e',
    name: null,
    type: null,
    properties: [ 'writeWithoutResponse' ],
    descriptors: null },
  Characteristic {
    _noble: 
     Noble {
       state: 'poweredOn',
       address: '60:f8:1d:af:69:c5',
       _bindings: [Object],
       _peripherals: [Object],
       _services: [Object],
       _characteristics: [Object],
       _descriptors: [Object],
       _discoveredPeripheralUUids: [Object],
       _events: [Object],
       _eventsCount: 3,
       _allowDuplicates: false },
    _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
    _serviceUuid: '6e400001b5a3f393e0a9e50e24dcca9e',
    uuid: '6e400003b5a3f393e0a9e50e24dcca9e',
    name: null,
    type: null,
    properties: [ 'notify' ],
    descriptors: null } ]
  ble-serial found characteristic: +2ms 6e400002b5a3f393e0a9e50e24dcca9e
  ble-serial found characteristic: +1ms 6e400003b5a3f393e0a9e50e24dcca9e
  ble-serial have both characteristics +0ms Characteristic {
  _noble: 
   Noble {
     state: 'poweredOn',
     address: '60:f8:1d:af:69:c5',
     _bindings: 
      NobleBindings {
        _peripherals: [Object],
        _xpcConnection: [Object],
        _events: [Object],
        _eventsCount: 38,
        sendCBMsg: [Function],
        init: [Function],
        startScanning: [Function],
        stopScanning: [Function],
        connect: [Function],
        disconnect: [Function],
        updateRssi: [Function],
        discoverServices: [Function],
        discoverIncludedServices: [Function],
        discoverCharacteristics: [Function],
        read: [Function],
        write: [Function],
        broadcast: [Function],
        notify: [Function],
        discoverDescriptors: [Function],
        readValue: [Function],
        writeValue: [Function],
        readHandle: [Function],
        writeHandle: [Function] },
     _peripherals: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _services: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _characteristics: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _descriptors: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _discoveredPeripheralUUids: [ 'dc7104dfcff6465b8e74903f4008afef' ],
     _events: 
      { warning: [Function: bound ],
        stateChange: [Function],
        discover: [Function] },
     _eventsCount: 3,
     _allowDuplicates: false },
  _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
  _serviceUuid: '6e400001b5a3f393e0a9e50e24dcca9e',
  uuid: '6e400002b5a3f393e0a9e50e24dcca9e',
  name: null,
  type: null,
  properties: [ 'writeWithoutResponse' ],
  descriptors: null } Characteristic {
  _noble: 
   Noble {
     state: 'poweredOn',
     address: '60:f8:1d:af:69:c5',
     _bindings: 
      NobleBindings {
        _peripherals: [Object],
        _xpcConnection: [Object],
        _events: [Object],
        _eventsCount: 38,
        sendCBMsg: [Function],
        init: [Function],
        startScanning: [Function],
        stopScanning: [Function],
        connect: [Function],
        disconnect: [Function],
        updateRssi: [Function],
        discoverServices: [Function],
        discoverIncludedServices: [Function],
        discoverCharacteristics: [Function],
        read: [Function],
        write: [Function],
        broadcast: [Function],
        notify: [Function],
        discoverDescriptors: [Function],
        readValue: [Function],
        writeValue: [Function],
        readHandle: [Function],
        writeHandle: [Function] },
     _peripherals: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _services: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _characteristics: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _descriptors: { dc7104dfcff6465b8e74903f4008afef: [Object] },
     _discoveredPeripheralUUids: [ 'dc7104dfcff6465b8e74903f4008afef' ],
     _events: 
      { warning: [Function: bound ],
        stateChange: [Function],
        discover: [Function] },
     _eventsCount: 3,
     _allowDuplicates: false },
  _peripheralId: 'dc7104dfcff6465b8e74903f4008afef',
  _serviceUuid: '6e400001b5a3f393e0a9e50e24dcca9e',
  uuid: '6e400003b5a3f393e0a9e50e24dcca9e',
  name: null,
  type: null,
  properties: [ 'notify' ],
  descriptors: null }
  ble-serial notify +86ms null
  ble-serial writing +4s <Buffer f9>
  ble-serial writing +1ms <Buffer f0 79 f7>