Question

我需要通过连接到PC的串行COM1端口的GSM设备发送短信。

我虽然能够接收短信，但是当我尝试发送短信时 - 另一方根本没有收到短信。当我尝试通过超级终端连接GSM设备并发出发送短信的命令时，它工作正常。以下是我的代码：

    var SerialPort = require("serialport").SerialPort
    var serialPort = new SerialPort("COM1", {
         baudrate: 9600,  dataBits: 8,  parity: 'none',  stopBits: 1, flowControl: false, xon : false, rtscts:false, xoff:false, xany:false, buffersize:0
    });

    serialPort.on("open", function () {
    console.log('Serial communication open');
            serialPort.write("AT+CMGF=1");
            serialPort.write('\r');
            delay(10);
            serialPort.write("AT+CNMI=2,2,0,0,0");
            serialPort.write('\r');
            delay(10);
      serialPort.on('data', function(data) {
            gsm_message_sending(serialPort, "S", "1111111111"); //valid number only
     });
});

function gsm_message_sending(serial,message,phone_no)
{
     serial.write("AT+CMGF=1");
     delay(100); // a simple for loop
     serial.write("AT+CNMI=2,2,0,0,0"); 
     serial.write('\r');
     delay(200);
     serial.write("AT+CMGS=\"+91");
     serial.write(phone_no);
     serial.write('"')
     serial.write('\r');
     serial.write(message); 
     //Now I have to send two time consecutively Ctrl+Z or char - 26
     //I am assuming that maybe cause of below code SMS are not being send
     // Method 1 :
     // serial.write(String.fromCharCode(26)) 
     //serial.write(String.fromCharCode(26)) 
    //Method 2
    //serial.write(Buffer([0x1A]));
    //serial.write(Buffer([0x1A]));
    //serial.write('^z');
    //serial.write('^z');
}

我不确定我在做什么，或者为什么短信没有出去？

Answer 1

您的脚本

var SerialPort = require("serialport").SerialPort
var serialPort = new SerialPort("/dev/ttyUSB0", {
     baudrate: 9600,  dataBits: 8,  parity: 'none',  stopBits: 1, flowControl: false, xon : false, rtscts:false, xoff:false, xany:false, buffersize:0
});

serialPort.on("open", function () {
    console.log('Serial communication open');
    serialPort.write("AT^SYSCFG=13,1,3FFFFFFF,2,4");
    serialPort.write('\r');
    serialPort.on('data', function(data) {
        console.log("Received data: " + data);
    });
    gsm_message_sending(serialPort, "test2", "<you phone number>");
});

function gsm_message_sending(serial, message, phone_no) {
    serial.write("AT+CMGF=1");
    serial.write('\r');
    serial.write("AT+CMGS=\"");
    serial.write(phone_no);
    serial.write('"')
    serial.write('\r');
    serial.write(message); 
    serial.write(Buffer([0x1A]));
    serial.write('^z');
}

使用E3131调制解调器完美适合我。正如您所看到的，我更改了一些脚本，以便它只发出一个短信并打印消息：

Received data: AT^SYSCFG=13,1,3FFFFFFF,2,4
Received data:
OK

Received data: AT+CMGF=1
Received data:
OK

Received data: AT+CMGS="
Received data: 0671358943
Received data: "
Received data:
>
Received data: test2
Received data:
Received data: ^z
Received data:
+CMGS: 28

OK

Answer 2

尝试：

sudo nodejs yourfilejs.js

在ubuntu上如果没有sudo会引发错误＆＃39;权限被拒绝＆＃39;

Answer 3

+1为Mermoz的答案。但是它给了我一个不推荐使用Buffer的警告，并且无法发送消息。这是为我工作的解决方案。希望对别人有帮助。

var SerialPort = require("serialport");
function sendSMS(){
var serialPort = new SerialPort("/dev/ttyUSB0", {
    baudRate: 9600,  dataBits: 8,  parity: 'none',  stopBits: 1, flowControl: false, xon : false, rtscts:false, xoff:false, xany:false, buffersize:0
});

serialPort.on("open", async function () {
    console.log('Serial communication open');
    serialPort.write("AT+CMGF=1\r",11);
    await sleep(100);
    serialPort.write("AT+CSCS=\"gsm\"\r",15);
    await sleep(100);
    serialPort.write("AT+CSCA=\"<Service center number>\"\r",19);
    await sleep(100);
    serialPort.write("AT+CMGS=\"<Receiver's number>\"\r\n\0",23);
    await sleep(1000);
    serialPort.write("test\r",6);
    await sleep(1000);
    serialPort.write("\r",0);
    await sleep(100);
    serialPort.write("\x1A",2);
    serialPort.on('data', function(data) {
        console.log("Received data: " + data);
    });
});
}
function sleep(ms){
return new Promise(resolve=>{
    setTimeout(resolve,ms)
})
}

NodeJS：通过串口连接的GSM设备发送短信

3 个答案: