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