When adding TinyGPS Lib with Sim900 It does not work

Projects Programming
1

When I add #include <TinyGPS++.h> and TinyGPSPlus gps; to the code it stops inet.httpGET from working as soon as i remove it from the code it starts working again. The same thing happened with TinyGPS so I tried the TinyGPSPluse and the same thing is happening ive been trying to get this to work for 5 days now and I aint had any luck.

It uploads to the board fine but when it starts it prints nothing to the Serial.

when I remove the inet.httpGET the function incomingSMS(); works fine.

Any help would be great

#include <TinyGPS++.h>
#include "SIM900.h"
#include <SoftwareSerial.h>
TinyGPSPlus gps;

#include "inetGSM.h"
#include "sms.h"

InetGSM inet;
SMSGSM sms;

char msg[50];
int numdata;
char inSerial[50];
char smsCHARbuffer[160];
int i=0;
char n[20];
String GetMsg;
boolean started=false;
char APN_Server[50] = "******";
char APN_User[50] = "*******";
char APN_Pass[50] = "******";




void setup() 
{
  Serial.begin(9600);
  Serial.println("GSM Shield testing.");
  
  if (gsm.begin(2400)){
    Serial.println("\nstatus=READY");
    started=true;  
  }else{
    Serial.println("\nstatus=IDLE");
  }
  
  if(started){
     if (inet.attachGPRS(APN_Server, APN_User, APN_Pass)){
       Serial.println("status=ATTACHED");
     }else{ 
       Serial.println("status=ERROR");
     }
  }


};
void incomingSMS(){
  Serial.println("Waiting for SMS..."); 
  if(started){
     gsm.listen();
     sms.GetSMS(1, n, smsCHARbuffer, 160);
     GetMsg=smsCHARbuffer;
     //Debug - Display SMS
     Serial.println(smsCHARbuffer); 
     sms.DeleteSMS(1);  
     
     memset(smsCHARbuffer, 0, sizeof smsCHARbuffer);
  }
  delay(2500);
}


int GetGPS=0;

void loop() 
{
 if(GetGPS==1){
    //GetGPSCor();

 }else{

//incomingSMS();
Serial.println("Sending Data...");
numdata=inet.httpGET("www.google.com", 80, "/", msg, 50);
Serial.println("Data Sent!");

 }
 
    

 
 
};
2

Which Arduino are you using?

Just adding the library reserves memory (in SRAM) for the buffer that the library uses to hold the GPS data. You may, with all those other arrays, be running out of memory.

3

I am using an UNO

4

gully:
I am using an UNO

How much memory do you have? Arduino Playground - HomePage

5

PaulS:

gully:
I am using an UNO

How much memory do you have? Arduino Playground - HomePage

When i remove the inet.httpGET its say freeMemory()=354 i cant test it with inet.httpGET i because it does not work.

6

When i remove the inet.httpGET its say freeMemory()=354 i cant test it with inet.httpGET i because it does not work.

The idea was to comment out the include statement and initialization of the TinyGPSPlus instance, and measure how much free memory you have. Then, uncomment the include statement, and see how much free memory you have. With only 354 bytes available without using the httpGET() method, it's nearly certain that you don't have enough memory to use it AND the TinyGPSPlus class.

7

PaulS:

When i remove the inet.httpGET its say freeMemory()=354 i cant test it with inet.httpGET i because it does not work.

The idea was to comment out the include statement and initialization of the TinyGPSPlus instance, and measure how much free memory you have. Then, uncomment the include statement, and see how much free memory you have. With only 354 bytes available without using the httpGET() method, it's nearly certain that you don't have enough memory to use it AND the TinyGPSPlus class.

when i add the tinyGPSPluse Lib the code sill works as soon as I do SoftwareSerial ss(7, 6); the code stops working

8

When I add #include <TinyGPS++.h> and TinyGPSPlus gps; to the code it stops inet.httpGET from working as soon as i remove it from the code it starts working again.

when i add the tinyGPSPluse Lib the code sill works as soon as I do SoftwareSerial ss(7, 6); the code stops working

Two different "causes" for your problem. Make up your mind which is the real cause.

Tell us how much memory is available before adding TinyGPS(Plus). Tell us how much is available after adding TinyGPS(Plus).

Tell us how much memory is available before adding SoftwareSerial. Tell us how much is available after adding SoftwareSerial.