first

.gitignore

@@ -0,0 +1 @@
+node_modules/

deviceObject.js

@@ -0,0 +1,37 @@
+const SerialPort = require('serialport')
+const EventEmitter = require('events')
+
+class DeviceObject extends EventEmitter {
+  constructor (port, opts = {}) {
+    super()
+    this._port = port
+    this._spOpts = opts
+    this._sp = null
+    this.isOpen = false
+  }
+
+  connect () {
+    this._sp = new SerialPort(this._port, this._spOpts)
+    this._sp.open(() => {
+      this.isOpen = true
+      this.emit('open')
+    })
+    this._sp.on('close', () => {
+      this.isOpen = false
+      this.emit('close')
+    }).on('data', data => {
+      this.emit('data', data)
+    })
+  }
+
+  static async getPorts () {
+    try {
+      let list = SerialPort.list()
+      return list
+    } catch (err) {
+      return null
+    }
+  }
+}
+
+module.exports = DeviceObject

package.json

@@ -0,0 +1,15 @@
+{
+  "name": "serialport_class",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "serialport": "^7.0.2"
+  }
+}