sms.js

//nano /boot/cmdline.txt  -> verander console
//const NR = "0600000000";
const SerialPort = require('serialport');
const Readline = SerialPort.parsers.Readline;
const port = new SerialPort('/dev/serial0', {
  baudRate: 115200
});
const parser = port.pipe(new Readline({ delimiter: '\n' }));


const cmd = {
  SMS_ON : "AT+CMGF=1\r\n",
  SMS_HEAD : "AT+CMGS=",
  CTR_Z : String.fromCharCode(0x1A),
  BR : "\r\n"
}

const stat = {
  INIT : 0,
  SMS_SET : 1,
  SMS_CMD : 2,
  SMS_TEXT: 3,
  SMS_SEND : 4
}

let status = stat.INIT;

console.log("STARTING");

wl = (cmd) => {
  port.write(`${cmd}\r\n`)
}

sms = (nr, msg) => {
  port.write(`${cmd.SMS_HEAD}\"${nr}\"${cmd.BR}`);
  // port.write(msg);
  // port.write(cmd.CTR_Z);
  // port.write(cmd.BR);
}


port.open(function (err) {
  console.log("OPEN");
  port.write(cmd.SMS_ON);
  // wl(`ATD${NR}`);
});

// New lines
parser.on('data', (data) => {
  if(data.indexOf("OK") == 0) {
    console.log("ok");
    if(status == stat.INIT) {
      console.log("init");
      status = stat.SMS_SET;
      status = stat.SMS_CMD;
      sms(NR, "goede smooooorgenst");
    }
  }
  console.log(data);
});

port.on('data', (data) => {
  dat = data.toString();
  console.log(dat);
  if(status == stat.SMS_CMD && dat.indexOf(">") > 0) {
    status = stat.SMS_TEXT;
    port.write("hallo");
    port.write(cmd.CTR_Z);
    port.write(cmd.BR);
  }
});