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A BareBone Arduino Library For SIM800 Modules

License: GNU General Public License v3.0

C++ 66.85% C 33.15%

arduino sim800 gsm gsm-modem sim800library iot arduino-library sim800l

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barebonesim800's Issues

[INFO] steps to active APN and data flow

First of all, thank you VERY MUCH for this wonderful lib which I've learned a lot reading the source code.

My question is how did you manage to get the flows? For example, in the following code you had to execute a series of commands to get the locations working:

this->SoftwareSerial::print (F(" AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\" \r\n" ));
    _buffer=_readSerial();  // set bearer parameter
    this->SoftwareSerial::print (F(" AT+SAPBR=3,1,\"APN\",\"internet\" \r\n" ));
    _buffer=_readSerial();  // set apn
    this->SoftwareSerial::print (F(" AT+SAPBR=1,1 \r\n"));
    delay(1200);
    _buffer=_readSerial();			// activate bearer context
    this->SoftwareSerial::print (F(" AT+SAPBR=2,1\r\n "));
    delay(3000);
    _buffer=_readSerial();

First enable the GPRS, second setting the APN and so one, how did you know that?

I've found a PDF where I could understand better all the commands, but not the flows.

Not Attached

I'm getting "Not Attached" error with the example code of Send SMS. This the circuit i'd made:

HTTPS Get Request doesn't work

Hello,

i try to do a http get request with an https url. In debug mode, i get the following result:

`Testing GSM module For GPRS Connectivity
Should be ready by now
AT

AT+CSCS="GSM"

AT+CMGF=1

AT+CMGL="ALL",0

Device is Attached
Connecting to APN
AT+CIPSHUT

SHUT OK

AT+CGATT=0

AT+SAPBR=0,1

ERROR

AT+SAPBR=3,1,"CONTYPE","GPRS"

AT+SAPBR=3,1,"APN","web.vodafone.de"

AT+SAPBR=3,1,"USER",""

AT+SAPBR=3,1,"PWD",""

AT+SAPBR=1,1

AT+CGATT=1

AT+CIPMUX=0

AT+CSTT="web.vodafone.de","",""

AT+CIICR

AT+CIFSR

100.73.30.57

Connected to Network
Making HTTP Get Request
AT+HTTPINIT

AT+HTTPPARA="CID",1

AT+HTTPPARA="URL",https://webapp.xxxxxxxxxxxxxx/t.php

AT+HTTPACTION=0

+HTTPACTION: 0,603,0

AT+HTTPREAD

Received Info:
AT+HTTPREAD

AT+HTTPTERM

AT+CIPSHUT

SHUT OK

AT+CGATT=0

+SAPBR 1: DEACT

AT+SAPBR=0,1

ERROR
`

What can i do?

http GET don't work after sleep

Im scratching my head for few days with this one. When i do GET request it works but when I put module to sleep and then do request it doesn't.

Here is my code:

#include <BareBoneSim800.h>

BareBoneSim800 sim800("internet.bob.si");  //to declare the library with an APN
const char resource[] = "m2msupport.net/m2msupport/test.php";

 const int port = 80;

void setup() {
  Serial.begin(9600);
  sim800.begin();
  while(!Serial);

  Serial.println("Testing GSM module For GPRS Connectivity");
  delay(8000); // this delay is necessary, it helps the device to be ready and connect to a network

  Serial.println("Should be ready by now");
    bool deviceAttached = sim800.isAttached();
  if (deviceAttached)
    Serial.println("Device is Attached");
  else
    Serial.println("Not Attached");

}

void loop() {
  sim800.disableSleep();
  sim800.setFullMode();

// Connecting the the GPRS APN Network
 Serial.println(" Connecting to APN");
 bool netConnect = sim800.gprsConnect();
 if(netConnect)
  Serial.println("Connected to Network");
 else
  Serial.println("An Error Occured");

  if(netConnect)
  {    
    Serial.println("Making HTTP Get Request");
    String result = sim800.sendHTTPData(resource);
    Serial.println("Received Info: ");
    Serial.println(result);
  
  }
    
    sim800.closeHTTP(); // disconnect from server
    sim800.gprsDisconnect();

    bool sleepActivated = sim800.enterSleepMode();    
      if(sleepActivated)
        {    
         Serial.println("zzzzZZZZZZzzzzz"); 
         delay(5000); 
      }
  }

this is debug for first request

AT+CSCLK=0

OK

AT+CFUN=1

OK

AT+CFUN=1

OK

 Connecting to APN
AT+CIPSHUT

SHUT OK

AT+CGATT=0

OK

AT+SAPBR=0,1

ERROR

AT+SAPBR=3,1,"CONTYPE","GPRS"

OK

AT+SAPBR=3,1,"APN","internet.bob.si"

OK

AT+SAPBR=3,1,"USER",""

OK

AT+SAPBR=3,1,"PWD",""

OK

AT+SAPBR=1,1


OK

AT+CGATT=1

OK

AT+CIPMUX=0

OK

AT+CSTT="internet.bob.si","",""

OK

AT+CIICR

OK

AT+CIFSR

100.65.40.9

Connected to Network
Making HTTP Get Request
AT+HTTPINIT

OK

AT+HTTPPARA="CID",1

OK

AT+HTTPPARA="URL",m2msupport.net/m2msupport/test.php

OK

AT+HTTPACTION=0

OK


+HTTPACTION: 0,200,4

AT+HTTPREAD

+HTTPREAD: 4
test
OK

Received Info: 
AT+HTTPREAD

+HTTPREAD: 4
test
OK

AT+HTTPTERM

OK

AT+CIPSHUT

SHUT OK

AT+CGATT=0

+SAPBR 1: DEACT

OK

AT+SAPBR=0,1

ERROR

AT+CFUN=0

+CPIN: NOT READY

OK

AT+CSCLK=2

OK

zzzzZZZZZZzzzzz

here is the second one

AT+CSCLK=0


OK

AT+CFUN=1


+CPIN: READY

OK


SMS Ready


Call Ready

AT+CFUN=1


OK

 Connecting to APN
AT+CIPSHUT


SHUT OK

AT+CGATT=0


OK

AT+SAPBR=0,1


ERROR

AT+SAPBR=3,1,"CONTYPE","GPRS"


OK

AT+SAPBR=3,1,"APN","internet.bob.si"


OK

AT+SAPBR=3,1,"USER",""


OK

AT+SAPBR=3,1,"PWD",""


OK

AT+SAPBR=1,1



OK

AT+CGATT=1


OK

AT+CIPMUX=0


OK

AT+CSTT="internet.bob.si","",""


OK

AT+CIICR


OK

AT+CIFSR


100.67.23.115

Connected to Network
Making HTTP Get Request
AT+HTTPINIT


OK

AT+HTTPPARA="CID",
Received Info: 

AT+HTTPTERM


OK

AT+CIPSHUT


SHUT 
AT+CFUN=0


+SAPBR

OK

FF


AT+CSCLK=0


OK

AT+CFUN=1


+CPIN:

SMS Ready


Call Ready

Any idea how to fix it ?

Can't put to sleep after HTTP GET

Hi there. First of all I love the simplicity of this library!

Here is the code that I use

#include <BareBoneSim800.h>
BareBoneSim800 sim800("internet.bob.si", "bob", "internet");  //to declare the library with an APN, UserName and Password
 const char resource[] = "test.com/send.php";
 const int port = 80;

void setup() {
  Serial.begin(9600);
  sim800.begin();
  while(!Serial);
  delay(8000); 
}

void loop() {
 bool fullMode = sim800.setFullMode();
  if(fullMode)
  {  

// Connecting the the GPRS APN Network
 Serial.println(" Connecting to APN");
 bool netConnect = sim800.gprsConnect();

  if(netConnect)
  {    
    Serial.println("Making HTTP Get Request");
    String result = sim800.sendHTTPData(resource);
    Serial.println("Received Info: ");
    Serial.println(result);
 
    sim800.closeHTTP(); // disconnect from server
    bool netDisconnect=sim800.gprsDisconnect();
    sim800.flushSerial(5000);

      bool sleepActivated = sim800.enterSleepMode();
    Serial.println("sleeeeeeeeeep");
    Serial.println(sleepActivated); 
    
      if(sleepActivated)
        {    
         Serial.println("zzzzZZZZZZzzzzz"); 
         delay(30000);   
           bool disableSleep = sim800.disableSleep();

      } 
  }   
  }
}

It works fine up to when is time to put module in sleep mode. Serial print for sleepActivated returns 0 and I cant understand why? If I just connect module to network I can than put it into sleep but not after HTTP request. Any idea why?

AT Command

Hi, how can i use the AT commands in this library?

Is it support HTTP Post method ?

HI,

Is it support HTTP Post method ?

dtmf

Detection of DTMF tones - SIM800L module.

I get "OK" when I send 'AT+DDET=1,1000,1,1* ' over uart .
But it doesnt seem to detect anything afterwards.
Perhaps I am doing something wrong.
Would appreciate some feedback.

regards
Atul
ref : *SIM800 Series_AT Command Manual_V1.09

OBSERVATION ON HTTP SEND DATA

Ayo,
Good job.
It took me sleepless nights to understand the SIM800.

However, I have observation in this your BareBone library.
Check line 540 in .cpp file.

Under method sendHttpdata.
AT COMMAND for HTTP POST should ta value 1 not 0 as you indicated.

I maybe wrong anyway.

Secondly, can you give me idea, I wish to develop nonblock library to be used in rtos. But attempt s seem have not yield anything good.

To use the Hardware Serial

Hello,

it would be nice to have the possibility to use your great library with Hardware Serial in board which have them plenty. Unfortunately it seems to be too "hardwired" to (alt)softserial.

I am facing issue with char *mydataIn = strdup(tempData.c_str());

Hello,

I tried the BareBoneSim800 1.25 version library. It seems the line "char *mydataIn = strdup(tempData.c_str());" has the problem which results in NULL value for the *mydataIn pointer and the end result is "Status" value will remain 99.

For example, call to function sim800.isAttached() will always display "Not Attached" even if there was OK response from SIM800 for the "AT\r\n" command.

How to Modify the TX and RX pin for SoftwareSerial

In my project, I was using a TFT LCD screen shield along with sim800 module, hence not able to use digital pin 8 and 9.
Is there any method to modify this by using barebonesim800.h or AltSoftSerial.h?

including call functions

Hey, can someone please include the call functions. That would help me a lot for my project. Because other lib´s are not that well with sending sms.

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