I am using version 3.10 of the serialport module of Node.js.
I have a GSM modem attached to an Ubuntu machine's serialport and I am sending SMS through the modem. Here is the simplified code:
var serialPort = require("serialport");
const Readline = serialPort.parsers.Readline;
var portSerial = new serialPort("/dev/ttyUSB1", {
baudrate: 115200,
dataBits:8, stopBits:1, parity: 'none'
}, function (err) {
if (err)
//log error here
});
parser = new Readline();
portSerial.pipe(parser);
portSerial.on("open", function(err) {
if (err)
return console.log("Error in opening serial port");
console.log("Port opened");
});
portSerial.on('error', function(err) {
//log error
})
//Send SMS
setTimeout(function() {
portSerial.write('AT+CMGF=1\nAT+CMGS="'+SMSphone + '"\n' +
SMSmessage + '\032');
}, 1000);
Yes, I am setting SMSphone and SMSmessage variables. And the code is actually a bit more complex but the core code for sending SMS is as shown above.
PROBLEM: All works fine if I am running minicom when the SMS is sent. The moment I exit minicom, the SMS do not go out. portSerial.write stops working.
It was all working fine until I upgraded the serialport version.