SMS message from GSM shield when a float activates

Hardware Arduino GSM Shield
1

Hi

I am trying to get a SIM5320A GSM shield to send an SMS to a mobile phone when a switch float activates. I can get it to send an SMS manually but not automatically when the switch float activates. I also can see that the switch floats work but I just can't seem to get them to work together. Any ideas anyone? Does anyone know the correct coding to allow this to happen?

I have been trying to use:
#include <GSM.h>
#include "Adafruit_FONA.h"

#define FONA_TX 2
#define FONA_RX 3
#define FONA_RST 9

boolean state, lastState;

GSM gsmAccess;
GSM_SMS sms;

void setup()
{
pinMode(2, INPUT_PULLUP);
state = digitalRead(2);
lastState = state;

Serial.begin(115200);

delay(1000);
}

void loop()
{

lastState = state;
state = digitalRead(2);

if ( state != lastState ) {
sendSMS();
}

delay(500);
}

void sendSMS() {
Serial.print("Switch was turned ");
Serial.println(state ? "off" : "on");
char txtMsg[200];
Serial.println(txtMsg);

delay (500);

sendSMS("AT+CMGS="+6405701420"");

delay (500);

sendSMS ("Switch was turned ");
sendSMS ? "on" : "off");

delay(500);
}

Cheers

2

Hi

I am trying to get a SIM5320A GSM shield to send an SMS to a mobile phone when a switch float activates. I can get it to send an SMS manually but not automatically when the switch float activates. I also can see that the switch floats work but I just can't seem to get them to work together. Any ideas anyone? Does anyone know the correct coding to allow this to happen?

I have been trying to use:
#include <GSM.h>
#include "Adafruit_FONA.h"

#define FONA_TX 2
#define FONA_RX 3
#define FONA_RST 9

boolean state, lastState;

GSM gsmAccess;
GSM_SMS sms;

void setup()
{
pinMode(2, INPUT_PULLUP);
state = digitalRead(2);
lastState = state;

Serial.begin(115200);

delay(1000);
}

void loop()
{

lastState = state;
state = digitalRead(2);

if ( state != lastState ) {
sendSMS();
}

delay(500);
}

void sendSMS() {
Serial.print("Switch was turned ");
Serial.println(state ? "off" : "on");
char txtMsg[200];
Serial.println(txtMsg);

delay (500);

sendSMS("AT+CMGS="+6405701420"");

delay (500);

sendSMS ("Switch was turned ");
sendSMS ? "on" : "off");

delay(500);
}

Cheers

3

Hi

I am trying to get a SIM5320A GSM shield to send an SMS to a mobile phone when a switch float activates. I can get it to send an SMS manually but not automatically when the switch float activates. I also can see that the switch floats work but I just can't seem to get them to work together. Any ideas anyone? Does anyone know the correct coding to allow this to happen?

I have been trying to use:
#include <GSM.h>
#include "Adafruit_FONA.h"

#define FONA_TX 2
#define FONA_RX 3
#define FONA_RST 9

boolean state, lastState;

GSM gsmAccess;
GSM_SMS sms;

void setup()
{
pinMode(2, INPUT_PULLUP);
state = digitalRead(2);
lastState = state;

Serial.begin(115200);

delay(1000);
}

void loop()
{

lastState = state;
state = digitalRead(2);

if ( state != lastState ) {
sendSMS();
}

delay(500);
}

void sendSMS() {
Serial.print("Switch was turned ");
Serial.println(state ? "off" : "on");
char txtMsg[200];
Serial.println(txtMsg);

delay (500);

sendSMS("AT+CMGS="+6405701420"");

delay (500);

sendSMS ("Switch was turned ");
sendSMS ? "on" : "off");

delay(500);
}

Cheers

4

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5

Sorry. My first time using a forum and I didn't realise.

6

Threads merged.

7

Am I right to say assuming there is no reply this is impossible?

8

Please read reply #5. Invest a little of your time if you want us to invest ours.

9 
/*  NOT COMPILED or checked for detail */

#include <GSM.h>
#include "Adafruit_FONA.h"

#define FONA_TX 2
#define FONA_RX 3
#define FONA_RST 9
#define SWITCH_PIN x  // you're gonna need this

boolean switch_state, prev_state;

GSM gsmAccess;
GSM_SMS sms;

// -----------------------------
void setup()
{
  // not needed, FONA / serial looks after this
  // and it's an OUTPUT anyway !
  // pinMode(2, INPUT_PULLUP); 
  // why are you reading the TX pin state ?
  // state = digitalRead(2);
  // prev_state = state;

  Serial.begin(115200);
  delay(1000);  // ???
}

// -----------------------------
void loop()
{
  // prev_state = state;
  // state = digitalRead(2);
 
  switch_state = digitalRead(SWITCH_PIN);
  if ( switch_state != prev_state ) {
    sendSMS();
    prev_state = switch_state;  // to avoid multiple trigger events
  }
 // this may be better served by a minimum trigger interval to avoid message storms!
  delay(500);  // ???  
}
// -----------------------------
void sendSMS() {
  // makes more sense to put this message up when the state is detected...
  // it has nothing to do with sendSMS()
  Serial.print("Switch was turned ");
  Serial.println(switch_state ? "on" : "off");
 
  // what is this?
  // You're creating a  new *empty* buffer - then printing it (nothing)
  char txtMsg[200];
  Serial.println(txtMsg);
  delay (500);

 sendSMS("AT+CMGS=\"+64xxxxxxxx\"");  // thanks for the number!
 delay (500);

 // just wrong.
 // two separate messages, the second one won't even compile
 sendSMS ("Switch was turned ");
 sendSMS ? "on" : "off");
  delay(500);  // ???
}