Hi.
I bout for testing one gsm shild from TinySine company.
They have offered few examples and lib for support but i can get it work.
Or to be more exact, the code is compiled and executed OK, serial Monitor shows correct data, but I can get / receive any SMS.
I was thinking that there is a problem with phone formating but after i tested few options, it looks like that this is not a problem.
The is the output of serial monitor.
GSM Shield testing.
GSM Shield testing.status=READY
SMS sent OK
NO NEW SMS,WAITTING
NO NEW SMS,WAITTING
NO NEW SMS,WAITTING
NO NEW SMS,WAITTING
NO NEW SMS,WAITTING
...
and this is the original supplier's code that I’m testing ( i didn't change anything ).
I have uncomment the part for sending, that's all.
#include "SIM900.h"
#include <SoftwareSerial.h>
//If not used, is better to exclude the HTTP library,
//for RAM saving.
//If your sketch reboots itself proprably you have finished,
//your memory available.
//#include "inetGSM.h"
//If you want to use the Arduino functions to manage SMS, uncomment the lines below.
#include "sms.h"
SMSGSM sms;
//To change pins for Software Serial, use the two lines in GSM.cpp.
//GSM Shield for Arduino
//www.open-electronics.org
//this code is based on the example of Arduino Labs.
//Simple sketch to send and receive SMS.
int numdata;
boolean started=false;
char smsbuffer[160];
char n[20];
//debug begin
char sms_position;
char phone_number[20]; // array for the phone number string
char sms_text[100];
int i;
//debug end
void setup()
{
//Serial connection.
Serial.begin(9600);
Serial.println("GSM Shield testing.");
//Start configuration of shield with baudrate.
//For http uses is raccomanded to use 4800 or slower.
if (gsm.begin(4800))
{
Serial.println("\nstatus=READY");
started=true;
}
else
Serial.println("\nstatus=IDLE");
if(started)
{
//Enable this two lines if you want to send an SMS.
if (sms.SendSMS("+439912345678", "Arduino SMS"))
Serial.println("\nSMS sent OK");
//if NO SPACE ,you need delte SMS from position 1 to position 20
//please enable this four lines
for(i=1;i<=20;i++)
{
sms.DeleteSMS(i);
}
}
};
void loop()
{
if(started)
{
//Read if there are messages on SIM card and print them.
sms_position=sms.IsSMSPresent(SMS_UNREAD);
if (sms_position)
{
// read new SMS
Serial.print("SMS postion:");
Serial.println(sms_position,DEC);
sms.GetSMS(sms_position, phone_number, sms_text, 100);
// now we have phone number string in phone_num
Serial.println(phone_number);
// and SMS text in sms_text
Serial.println(sms_text);
}
else
{
Serial.println("NO NEW SMS,WAITTING");
}
delay(1000);
}
};
Any idea, what could be wrong ?.