var SerialPort = require("serialport"); //
var portName = "COM5"; //
var serialPort = new SerialPort(
"COM5", {
baudRate: 9600, //
dataBits: 8, //
parity: "none", //
stopBits: 1, //
flowControl: false
}, false);
serialPort.open(function (error) {
if (error) {
console.log("" + portName + ":" + error);
} else {
console.log("");
}
}) error:
serialport.close() ;
problem solved, my CSDN address: node.js uses the serialport module to report an error
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