TypeError: \"path\" is not defined: undefined NodeJS Serialport return function答案

【问题标题】：TypeError: "path" is not defined: undefined NodeJS Serialport return functionTypeError: \"path\" is not defined: undefined NodeJS Serialport return function
【发布时间】：2022-11-10 09:28:59
【问题描述】：

您好，我正在尝试检查 USB 端口以检测 arduino USB 端口。所以这是我的

    function detectArdu() {
  detector.list().then(ports => {
    ports.forEach(function(port) {
    
      var searchString = port.manufacturer;
      var lookfor = "arduino";
      searchString = searchString.toLowerCase();
    
      if (searchString.indexOf(lookfor)>=0) {
        console.log(port.path);
        startSystem(port.path);
      }
    });
  });
}

detectArdu();

function startSystem(arduPortName) {
  try {
    test = new SerialInstance.SerialPort(arduPortName, {
      baudrate: 9600,
      dataBits: 8,
      parity: 'none',
      stopBits: 1,
      flowControl: false
    });
  } catch(error) {
    console.log(error);
  }
}

这是我的 console.log 数据：

TypeError: "path" is not defined: undefined
    at new SerialPortStream (C:\Users\gny\Desktop\jammer_socket_server\node_modules\@serialport\stream\dist\index.js:50:19)
    at new SerialPort (C:\Users\gny\Desktop\jammer_socket_server\node_modules\serialport\dist\serialport.js:13:9)
    at startSystem (C:\Users\gny\Desktop\jammer_socket_server\jammer_server.js:31:12)
    at C:\Users\gny\Desktop\jammer_socket_server\jammer_server.js:21:9
    at Array.forEach (<anonymous>)
    at C:\Users\gny\Desktop\jammer_socket_server\jammer_server.js:13:11

所以我尝试了不同的方法，但我不擅长 NodeJS 有没有人知道如何解决这个错误？

注意：我来自土耳其，我的英语可能不太好，抱歉。

【问题讨论】：

标签： javascript node.js sockets undefined node-serialport

【解决方案1】：

尝试将path 键插入 SerialPort init，即

const port = new SerialPort({
  path: '/dev/tty-usbserial1',
  baudRate: 9600,
})

【讨论】：