Forum >Can I send SMS while GPS/GPRS is on?

Can I send SMS while GPS/GPRS is on?

wahmalik85 2014-02-19 00:29:24 5107 Views5 Replies
Hi all,

I try to send SMS after reading GPS info and then send the information to server through GPRS,
But when I send the SMS i get
Code: Select all
+CMS ERROR: 302

which mean the operation not allowed.

I work based on this code:
https://github.com/DFRobot/GPS-GPRS-GSM ... RS_GPS.ino

any suggestions?

many thanks.

2014-02-25 22:22:56 [quote="Jose"]
let me know if you can keep the GPS while GPRS or SMS is enable without cold resetting.
I'll give it a go in my side.
[/quote]

Yes, I get the GPS coordinates and send them to SMS and GPRS without resetting between GPS and GSM.

^_^

best regards. wahmalik85

2014-02-25 20:50:32 Great!

I was attempting to get GPS phone calls and GPRS and did not check out that part.

I'm guessing the SMS is working by now in your sketch!
as for the buffer, nice found! not easy to track.
Thanks for sharing!

let me know if you can keep the GPS while GPRS or SMS is enable without cold resetting.
I'll give it a go in my side.

Cheers^^
Jose

2014-02-25 03:09:00 Hi,

I found 2 problems I faced.
1- I missed to type double quote (") before ** and after.
what I did is:

Code: Select all

Serial.println("777xxxxxx");

the right is:

Code: Select all

Serial.println("\"777xxxxxx\"");

2- the buffer size of serial was to small (64), so I can not send more than 64 character to the Module, so the AT command considered not complete.
the result would be like:

Code: Select all

+CMS ERROR: 302

wahmalik85

2014-02-19 21:13:17 Here is the code:

Code: Select all

  
#include <Arduino.h>
#include <Wire.h>
 
 
char aux_str[30];
char aux;
 
char latitude[15];
char longitude[15];
 
char inChar;
int index;
char inData[200];
 
 
char par1 [20];
char par2 [20];
char par3 [20];
char par4 [20];
char par5 [20];
char par6 [20];
 
int loop_no = 0;
 
/****************************************************************SMS********************/
char phone_no[20];
char inSMS[200];
 
boolean msgFound = false;
/**************************************************************************************/
 
void setup()
 {
   
   //Init the driver pins for GSM function
    pinMode(3,OUTPUT);
    pinMode(4,OUTPUT);
    pinMode(5,OUTPUT);
   //Output GSM Timing 
    digitalWrite(5,HIGH);
    delay(1500);
    digitalWrite(5,LOW); 
    
    // Use these commands instead of the hardware switch 'UART select' in order to enable each mode
    // If you want to use both GMS and GPS. enable the required one in your code and disable the other one for each access.
    digitalWrite(3,LOW);//enable GSM TX?RX
    digitalWrite(4,HIGH);//disable GPS TX?RX
    delay(2000);
    Serial.begin(9600);
    
    delay(5000);//call ready
    delay(5000);
    delay(5000);
    
    
    start_GSM();
    
    delay(5000);
    
    start_GPS();
  
    delay(500);
    
 }
 void loop()    
 {    
   
   
   read_GPS();
   delay(2000);
   /****************************************************************SMS*******************/
   SendReadSMSComm();
   
   if(msgFound)
    {
      //Serial.println("message will be send");
      sendSMS();
      delay(1000);
      DeleteAllMSGs();
    }
   /**************************************************************************************/
   if(loop_no > 0 )
   {
     send_GPRS();
   }else{
     loop_no ++;
   }
   delay(15000);
   msgFound = false;
 
 }
 
 
/****************************************************************SMS********************/
 
 void SendReadSMSComm()
 {
     Serial.println("AT");
     delay(1000);
     Serial.println("AT+CMGR=1");
     delay(3000);
     readSMS();
     strtok(inSMS, ",");
     strcpy(phone_no,strtok(NULL, ",")); // Gets **
     printBuff();
 }
 void readSMS()
 {
   index=0;
   while(Serial.available() > 0) // Don't read unless
                                                  // there you know there is data
   {
     if(index < 199) // One less than the size of the array
     {
       inChar = Serial.read(); // Read a character
       
       inSMS[index] = inChar; // Store it
       index++; // Increment where to write next
       inSMS[index] = '\0'; // Null terminate the string
     }
   }
   
   if(index > 20)
   {
      msgFound = true;
   }else{
     msgFound = false;
   }
 }
 
 
 void DeleteAllMSGs()
 {
      Serial.println("AT");
      delay(1000);
      Serial.println("AT+CMGD=1,4");
      delay(5000);
      printBuff();
 }
 
 void sendSMS()
 {
    Serial.println("AT");
    delay(1000);
    //Send message
    Serial.println("AT+CMGF=1");
    delay(1000);
    Serial.print("AT+CMGS=");//Change the receiver **
    Serial.println("777xxxxxx");
    delay(1000);
    Serial.print("lat=");//the message you want to send
    Serial.print(latitude);
    Serial.print(",lon=");
    Serial.print(longitude);
    delay(1000);
    Serial.write(26);
    delay(1000);
    Serial.println();
    printBuff();
 }
 
 /**********************************************************************************/
 
 void start_GSM(){
     //Configuracion GPRS Claro Argentina
    Serial.println("AT");
    delay(2000);
    //printBuff();
    Serial.println("AT+CREG?");
    delay(2000);
    //printBuff();
    Serial.println("AT+SAPBR=3,1,\"APN\",\"Fast-Internet\"");
    delay(2000);
    //printBuff();
    Serial.println("AT+SAPBR=3,1,\"USER\",\"net\"");
    delay(2000);
    //printBuff();
    Serial.println("AT+SAPBR=3,1,\"PWD\",\"net\"");
    delay(2000);
    //printBuff();
    Serial.println("AT+SAPBR=3,1,\"Contype\",\"GPRS\"");
    delay(2000);
    //printBuff();
    Serial.println("AT+SAPBR=1,1");
    delay(10000);
    //printBuff();
    Serial.println("AT+HTTPINIT");
    delay(2000);
    //printBuff();
    Serial.println("AT+HTTPPARA=\"CID\",1");
    delay(2000);
    //printBuff();
    clearBuff();
   
 }
 
 void send_GPRS(){
          
   
          
          
          Serial.print("AT+HTTPPARA=\"URL\",\"xxxxx.com/gps/geo2_1.php?lat=");
          Serial.print(latitude);
          
          Serial.print("&lon=");
          Serial.print(longitude);
          
          Serial.print("&par1=");
          Serial.print(par1);
          
          Serial.print("&par2=");
          Serial.print(par2);
          
          Serial.print("&par3=");
          //Serial.print("ok");
          Serial.print(par3);
          
          Serial.print("&par4=");
          //Serial.print("3555");
          Serial.print(par4);
          
          Serial.print("&par5=");
          //Serial.print("50251");
          Serial.print(par5);
          
          Serial.print("&par6=");
          //Serial.print("0.001");
          Serial.print(par6);
          
          
 
          Serial.println("\"");
          delay(2000);
          //waitTillResp();
          Serial.println("AT+HTTPACTION=0"); //now GET action
          delay(2000);
          
          //waitTillResp();
          clearBuff();
 }
 
 
 void start_GPS(){
     //Configuracion en Inicializacion GPS
    Serial.println("AT");
    delay(1000);
    Serial.println("AT+CGPSIPR=9600");// (set the baud rate)
    delay(1000);
    Serial.println("AT+CGPSPWR=1"); // ?turn on GPS power supply?
    delay(1000);
    Serial.println("AT+CGPSRST=1"); //?reset GPS in autonomy mode?
    delay(10000); //delay para esperar señal del GPS
 }
 
 void read_GPS(){
    
    
    Serial.println("AT+CGPSINF=0");
    //printBuff();
    
    read_String();
    
    
    strtok(inData, ",");
    
    strcpy(longitude,strtok(NULL, ",")); // Gets longitude
    strcpy(latitude,strtok(NULL, ",")); // Gets latitude
    strcpy(par1,strtok(NULL, ",")); 
    strcpy(par2,strtok(NULL, ",")); 
    strcpy(par3,strtok(NULL, ",")); 
    strcpy(par4,strtok(NULL, ",")); 
    strcpy(par5,strtok(NULL, ",")); 
    strcpy(par6,strtok(NULL, ",")); 
    
    convert2Degrees(latitude);
    convert2Degrees(longitude);
 }
 
  
 
 void read_String() {
      index=0;
      
      while(Serial.available() > 0) // Don't read unless
                                                  // there you know there is data
   {
       if(index < 199) // One less than the size of the array
       {
           inChar = Serial.read(); // Read a character
           inData[index] = inChar; // Store it
           index++; // Increment where to write next
           inData[index] = '\0'; // Null terminate the string
       }
   }
 }
 
 int8_t convert2Degrees(char* input){
 
    float deg;
    float minutes;
    boolean neg = false;    
 
    //auxiliar variable
    char aux[10];
 
    if (input[0] == '-')
    {
        neg = true;
        strcpy(aux, strtok(input**, "."));
 
    }
    else
    {
        strcpy(aux, strtok(input, "."));
    }
 
    // convert string to integer and add it to final float variable
    deg = atof(aux);
 
    strcpy(aux, strtok(NULL, '\0'));
    minutes=atof(aux);
    minutes/=1000000;
    if (deg < 100)
    {
        minutes += deg;
        deg = 0;
    }
    else
    {
        minutes += int(deg) % 100;
        deg = int(deg) / 100;    
    }
 
    // add minutes to degrees 
    deg=deg+minutes/60;
 
 
    if (neg == true)
    {
        deg*=-1.0;
    }
 
    neg = false;
 
    if( deg < 0 ){
        neg = true;
        deg*=-1;
    }
    
    float numeroFloat=deg; 
    int parteEntera[10];
    int cifra; 
    long numero=(long)numeroFloat;  
    int size=0;
    
    while(1){
        size=size**;
        cifra=numero%10;
        numero=numero/10;
        parteEntera[size-1]=cifra; 
        if (numero==0){
            break;
        }
    }
   
    int indice=0;
    if( neg ){
        indice++;
        input[0]='-';
    }
    for (int i=size-1; i >= 0; i--)
    {
        input[indice]=parteEntera[i]+'0'; 
        indice++;
    }
 
    input[indice]='.';
    indice++;
 
    numeroFloat=(numeroFloat-(int)numeroFloat);
    for (int i=1; i<=6 ; i++)
    {
        numeroFloat=numeroFloat*10;
        cifra= (long)numeroFloat;          
        numeroFloat=numeroFloat-cifra;
        input[indice]=char(cifra)+48;
        indice++;
    }
    input[indice]='\0';
 
 
}
 
 /*****************************/
 void clearBuff(){
   while( Serial.available() > 0) 
      {
        Serial.read();    // Clean the input buffer
      }
 }
 
 
void printBuff()
{
    delay(1000);
    while( Serial.available() > 0) 
    {
      Serial.print((char)Serial.read());
      
    }
     Serial.println("");
    delay(1000);
    clearBuff();
}
 
 
void waitTillResp(){
   int d = 0;
   while(Serial.available() < 1 && d != 10){
     delay(1000);
     d++;
   }
   printBuff();
}

wahmalik85

2014-02-19 00:53:44 I suggest you to check if you still have your services enabled, and try to send a sms manually before testing automatically from Arduino.

Could be that the SMS is not enabled, or the command is malformed.

Best if you send the code / sketch to see where it could be the problem or to try it Jose

Rich Text Editor


	#include <Arduino.h>
	#include <Wire.h>


	char aux_str[30];
	char aux;

	char latitude[15];
	char longitude[15];

	char inChar;
	int index;
	char inData[200];


	char par1 [20];
	char par2 [20];
	char par3 [20];
	char par4 [20];
	char par5 [20];
	char par6 [20];

	int loop_no = 0;

	/**************************************************************SMS******************/
	char phone_no[20];
	char inSMS[200];

	boolean msgFound = false;
	/**************************************************************************************/

	void setup()
	{

	//Init the driver pins for GSM function
	pinMode(3,OUTPUT);
	pinMode(4,OUTPUT);
	pinMode(5,OUTPUT);
	//Output GSM Timing
	digitalWrite(5,HIGH);
	delay(1500);
	digitalWrite(5,LOW);

	// Use these commands instead of the hardware switch 'UART select' in order to enable each mode
	// If you want to use both GMS and GPS. enable the required one in your code and disable the other one for each access.
	digitalWrite(3,LOW);//enable GSM TX?RX
	digitalWrite(4,HIGH);//disable GPS TX?RX
	delay(2000);
	Serial.begin(9600);

	delay(5000);//call ready
	delay(5000);
	delay(5000);


	start_GSM();

	delay(5000);

	start_GPS();

	delay(500);

	}
	void loop()
	{


	read_GPS();
	delay(2000);
	/**************************************************************SMS*****************/
	SendReadSMSComm();

	if(msgFound)
	{
	//Serial.println("message will be send");
	sendSMS();
	delay(1000);
	DeleteAllMSGs();
	}
	/**************************************************************************************/
	if(loop_no > 0 )
	{
	send_GPRS();
	}else{
	loop_no ++;
	}
	delay(15000);
	msgFound = false;

	}


	/**************************************************************SMS******************/

	void SendReadSMSComm()
	{
	Serial.println("AT");
	delay(1000);
	Serial.println("AT+CMGR=1");
	delay(3000);
	readSMS();
	strtok(inSMS, ",");
	strcpy(phone_no,strtok(NULL, ",")); // Gets **
	printBuff();
	}
	void readSMS()
	{
	index=0;
	while(Serial.available() > 0) // Don't read unless
	// there you know there is data
	{
	if(index < 199) // One less than the size of the array
	{
	inChar = Serial.read(); // Read a character

	inSMS[index] = inChar; // Store it
	index++; // Increment where to write next
	inSMS[index] = '\0'; // Null terminate the string
	}
	}

	if(index > 20)
	{
	msgFound = true;
	}else{
	msgFound = false;
	}
	}


	void DeleteAllMSGs()
	{
	Serial.println("AT");
	delay(1000);
	Serial.println("AT+CMGD=1,4");
	delay(5000);
	printBuff();
	}

	void sendSMS()
	{
	Serial.println("AT");
	delay(1000);
	//Send message
	Serial.println("AT+CMGF=1");
	delay(1000);
	Serial.print("AT+CMGS=");//Change the receiver **
	Serial.println("777xxxxxx");
	delay(1000);
	Serial.print("lat=");//the message you want to send
	Serial.print(latitude);
	Serial.print(",lon=");
	Serial.print(longitude);
	delay(1000);
	Serial.write(26);
	delay(1000);
	Serial.println();
	printBuff();
	}

	/**********************************************************************************/

	void start_GSM(){
	//Configuracion GPRS Claro Argentina
	Serial.println("AT");
	delay(2000);
	//printBuff();
	Serial.println("AT+CREG?");
	delay(2000);
	//printBuff();
	Serial.println("AT+SAPBR=3,1,\"APN\",\"Fast-Internet\"");
	delay(2000);
	//printBuff();
	Serial.println("AT+SAPBR=3,1,\"USER\",\"net\"");
	delay(2000);
	//printBuff();
	Serial.println("AT+SAPBR=3,1,\"PWD\",\"net\"");
	delay(2000);
	//printBuff();
	Serial.println("AT+SAPBR=3,1,\"Contype\",\"GPRS\"");
	delay(2000);
	//printBuff();
	Serial.println("AT+SAPBR=1,1");
	delay(10000);
	//printBuff();
	Serial.println("AT+HTTPINIT");
	delay(2000);
	//printBuff();
	Serial.println("AT+HTTPPARA=\"CID\",1");
	delay(2000);
	//printBuff();
	clearBuff();

	}

	void send_GPRS(){




	Serial.print("AT+HTTPPARA=\"URL\",\"xxxxx.com/gps/geo2_1.php?lat=");
	Serial.print(latitude);

	Serial.print("&lon=");
	Serial.print(longitude);

	Serial.print("&par1=");
	Serial.print(par1);

	Serial.print("&par2=");
	Serial.print(par2);

	Serial.print("&par3=");
	//Serial.print("ok");
	Serial.print(par3);

	Serial.print("&par4=");
	//Serial.print("3555");
	Serial.print(par4);

	Serial.print("&par5=");
	//Serial.print("50251");
	Serial.print(par5);

	Serial.print("&par6=");
	//Serial.print("0.001");
	Serial.print(par6);



	Serial.println("\"");
	delay(2000);
	//waitTillResp();
	Serial.println("AT+HTTPACTION=0"); //now GET action
	delay(2000);

	//waitTillResp();
	clearBuff();
	}


	void start_GPS(){
	//Configuracion en Inicializacion GPS
	Serial.println("AT");
	delay(1000);
	Serial.println("AT+CGPSIPR=9600");// (set the baud rate)
	delay(1000);
	Serial.println("AT+CGPSPWR=1"); // ?turn on GPS power supply?
	delay(1000);
	Serial.println("AT+CGPSRST=1"); //?reset GPS in autonomy mode?
	delay(10000); //delay para esperar señal del GPS
	}

	void read_GPS(){


	Serial.println("AT+CGPSINF=0");
	//printBuff();

	read_String();


	strtok(inData, ",");

	strcpy(longitude,strtok(NULL, ",")); // Gets longitude
	strcpy(latitude,strtok(NULL, ",")); // Gets latitude
	strcpy(par1,strtok(NULL, ","));
	strcpy(par2,strtok(NULL, ","));
	strcpy(par3,strtok(NULL, ","));
	strcpy(par4,strtok(NULL, ","));
	strcpy(par5,strtok(NULL, ","));
	strcpy(par6,strtok(NULL, ","));

	convert2Degrees(latitude);
	convert2Degrees(longitude);
	}



	void read_String() {
	index=0;

	while(Serial.available() > 0) // Don't read unless
	// there you know there is data
	{
	if(index < 199) // One less than the size of the array
	{
	inChar = Serial.read(); // Read a character
	inData[index] = inChar; // Store it
	index++; // Increment where to write next
	inData[index] = '\0'; // Null terminate the string
	}
	}
	}

	int8_t convert2Degrees(char* input){

	float deg;
	float minutes;
	boolean neg = false;

	//auxiliar variable
	char aux[10];

	if (input[0] == '-')
	{
	neg = true;
	strcpy(aux, strtok(input**, "."));

	}
	else
	{
	strcpy(aux, strtok(input, "."));
	}

	// convert string to integer and add it to final float variable
	deg = atof(aux);

	strcpy(aux, strtok(NULL, '\0'));
	minutes=atof(aux);
	minutes/=1000000;
	if (deg < 100)
	{
	minutes += deg;
	deg = 0;
	}
	else
	{
	minutes += int(deg) % 100;
	deg = int(deg) / 100;
	}

	// add minutes to degrees
	deg=deg+minutes/60;


	if (neg == true)
	{
	deg*=-1.0;
	}

	neg = false;

	if( deg < 0 ){
	neg = true;
	deg*=-1;
	}

	float numeroFloat=deg;
	int parteEntera[10];
	int cifra;
	long numero=(long)numeroFloat;
	int size=0;

	while(1){
	size=size**;
	cifra=numero%10;
	numero=numero/10;
	parteEntera[size-1]=cifra;
	if (numero==0){
	break;
	}
	}

	int indice=0;
	if( neg ){
	indice++;
	input[0]='-';
	}
	for (int i=size-1; i >= 0; i--)
	{
	input[indice]=parteEntera[i]+'0';
	indice++;
	}

	input[indice]='.';
	indice++;

	numeroFloat=(numeroFloat-(int)numeroFloat);
	for (int i=1; i<=6 ; i++)
	{
	numeroFloat=numeroFloat*10;
	cifra= (long)numeroFloat;
	numeroFloat=numeroFloat-cifra;
	input[indice]=char(cifra)+48;
	indice++;
	}
	input[indice]='\0';


	}

	/*****************************/
	void clearBuff(){
	while( Serial.available() > 0)
	{
	Serial.read(); // Clean the input buffer
	}
	}


	void printBuff()
	{
	delay(1000);
	while( Serial.available() > 0)
	{
	Serial.print((char)Serial.read());

	}
	Serial.println("");
	delay(1000);
	clearBuff();
	}


	void waitTillResp(){
	int d = 0;
	while(Serial.available() < 1 && d != 10){
	delay(1000);
	d++;
	}
	printBuff();
	}