添加串口处理

package.json

@@ -16,6 +16,8 @@
     "echarts-china-cities-js": "^0.1.1",
     "echarts-gl": "^2.0.8",
     "echarts-liquidfill": "^3.1.0",
+    "electron-store": "^8.0.1",
+    "serialport": "^9.2.5",
     "vue": "^3.0.5",
     "vue-echarts": "^6.0.0"
   },
@@ -24,8 +26,9 @@
     "@vue/compiler-sfc": "^3.0.5",
     "autoprefixer": "^10.2.5",
     "cross-env": "^7.0.3",
-    "electron": "^12.0.0",
+    "electron": "^13.5.2",
     "electron-builder": "^22.10.5",
+    "electron-rebuild": "^2.3.4",
     "postcss": "^8.2.10",
     "rimraf": "^3.0.2",
     "tailwindcss": "^2.1.1",

src/main/app.ts

@@ -1,5 +1,6 @@
 import { app, BrowserWindow } from 'electron'
 import {join} from "path";
+import './load-serialport'
 
 function createWindow() {
     const win = new BrowserWindow({

src/main/config.js

@@ -0,0 +1,8 @@
+const Store = require('electron-store')
+
+const store = new Store()
+const set = (key, val) => store.set(key, val)
+
+const get = (key) => store.get(key)
+
+module.exports = { set, get }

src/main/load-serialport.js

@@ -0,0 +1,46 @@
+const { ipcMain } = require('electron')
+const SerialPort  = require('serialport')
+const Readline    = require('@serialport/parser-readline')
+const config      = require('./config')
+
+const DEFAULT_BAUDRATE = 9600
+const getSerialPortConstructorArguments = (ports) => {
+  let serialport = config.get('serialport')
+  const path     = ( serialport && serialport.path )     ? serialport.path     : ports[0].path
+  const baudRate = ( serialport && serialport.baudRate ) ? serialport.baudRate : DEFAULT_BAUDRATE
+  return { path, baudRate }
+}
+
+let sender = null
+ipcMain.on("APP_MOUNTED", (event) => {
+  sender = event.sender
+})
+
+const sendMsg = (channel, msg) => {
+  if (sender) sender.send(channel, msg)
+}
+
+SerialPort.list().then((ports, err) => {
+  if (err) {
+    console.log(err)
+    return
+  }
+
+  console.log(ports, '=====================')
+
+  // 过滤到COM1口，很多电脑自带COM1接口
+  ports.filter((port) => port.path != 'COM1')
+  if (ports.length == 0) {
+    console.error('设备为连接')
+    return
+  }
+  
+  try {
+    const { path, baudRate } = getSerialPortConstructorArguments(ports)
+    const serialPort = new SerialPort(path, { baudRate })
+    const parser     = serialPort.pipe(new Readline({ delimiter: '\r\n' }))
+    parser.on('data', (data) => { sendMsg('NMEA', data) })
+  } catch (error) {
+    console.error(error);
+  }
+})