vittorioexp / sim800l-arduino-library-revised Goto Github PK

I noticed that sim800l provides keypad interface. Is this supported? is there any tutorial how to connect 5x5 key matrix?

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

In a function
void Sim800L::callNumber(char* number)
{
this->SoftwareSerial::print (F("ATD"));
this->SoftwareSerial::print (number);
this->SoftwareSerial::print (F("\r\n"));
}
in a line this->SoftwareSerial::print (F("\r\n")); should be a semicolon before \r\n.
it should be:
this->SoftwareSerial::print (F(";\r\n"));

Now it's really making a call :)

I've connected my arduino nano to sim800l in a correct order but the LED on sim800l didn't turn on, and also the sim800l was heated a little.
(I used a 12V-15A power source with a Module LM2596 to lower the voltage)
Please help me, thank you

Hi,
The library does not support all the functions I'd like to implement.
How can I interact with the SIM800 by sending AT commands and geting the answsers back ?

I don't know how i can declare rx and tx pins in the sketch without editing the library every time. Any ideas?

Hi, Im a student and im new to ardiuno. I have a module SIM800L with me and i'm using your library to Send SMS and Get GSM coordinates. I used sendSms Example in your library, Its working Great.. but when i try GSM_Coordinates Example, i get these outputs in my serial monitor.. Can you explain it and tell me that where am i wrong?

Location Calculated
Location Code: AT+CIPGSML
Longgitude: AT+CIPGSML
Latitude: AT+CIPGSML

i fixed the board as the instruction 5v to 5v, GND to GND, VDO to none, SIM TXD to RX10, SIMRXD to TX11, GND to GND, RST to none. and i have to admit Sim800L-Arduino-Library-revised is a great library.. thank you very much for it

Hello I've the following Code:

#include <SoftwareSerial.hpp>
#include <Sim800L.h>
#define RX 15
#define TX 14
Sim800L GSM(RX, TX);

void setup(){
Serial.begin(9600);
GSM.begin(9600);
Serial.println("GET PRODUCT INFO: ");
Serial.println(GSM.getProductInfo());
}
void loop(){
}

but I get everytime this error:

In file included from /tmp/sketch_jan10a/sketch_jan10a.ino:1:0:
/home/slush/Arduino/libraries/Sim800L_Library_Revised/Sim800L.h:62:10: fatal error: SoftwareSerial.h: No such file or directory
 #include <SoftwareSerial.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
Multiple libraries were found for "Sim800L.h"
 Used: /home/slush/Arduino/libraries/Sim800L_Library_Revised
 Not used: /home/slush/Arduino/libraries/Sim800L-Arduino-Library-revised-1.1.9
exit status 1
Error compiling for board Raspberry Pi Pico.

Someone know how I can fix that

Hello.

Function getNumberSms not working for me.
When i uncomment 497 line:
//Serial.println(_buffer.length());
always get : 0

hello

Hello :)

Is there a plan to add a function that will show which number is ringing?
That would be very helpful.

Thank you!

I used the included example today:

GSM.begin(9600);     
text="Testing Sms";     //text for the message. 
number="+49171326*******";    //change to a valid number.
error=GSM.sendSms(number,text);

Instead of just:

Tesing Sms

I intermittendly get something like this in the SMS I receive:

Testing Sms
AT+CMGF=1
AT#CMGs="+49171326*******"
Testing Sms

Sometimes the Sms gets sent twice. I removed country code +49 from the number, thought the + character would do some concatenation, but it didnt do any good.
What could cause this?

Hello, if I define "GSM.setFunctionalityMode(0)", the SIM800L will be in Power down mode?
Is this the power down mode defined in page 60 of the datasheet in which the module consum 50uA?

I'm searching for a library that can be used with ESP32 and a gsm module (not a real sim900l, but seems to work like it).
Your library seems to make esp talk with my module, but not in the correct way.
Example. getInformation.ino. It pulls some response from the module , but in a fragmented way. get product info prints ATI (the AT command sent to device), operator list prints one word from the response and operator the other word.
I've tried to change readSerial from char by char reading to readStringUntil, but with no succes.
I'm using one of the hardware ports of esp.

Thanks!

Hi,
how i can change the software for working with hardware serial?
THx

Perhaps just a personal issue, but I get wrong responses from setPin.
When I enter the correct pin it returns false and everything works fine. But when I enter the wrong pin it also returns false (and not true as you state in the description).
if ( (_readSerial(5000).indexOf("ER")) == -1)
{
return false;
}
else return true;

When I type the AT-Commands in by hand everything works fine. I hope that there is a solution. Thank you :-)

Here my code:

#include <Sim800L.h>
#include <SoftwareSerial.h>
#define RX 5
#define TX 4

Sim800L GSM(RX, TX);

void setup(){
pinMode(11, OUTPUT);
digitalWrite(11,HIGH); //turns on the Sim800L module

Serial.begin(9600);
GSM.begin(4800);
String pin = "4311";
delay(5000);

if (GSM.setPIN(pin)) Serial.println("Pin set");
else Serial.println("Pin NOT set");

}

void loop(){

}

Hi,
I am trying to get the SMS number of Sim800l but the function is not working.
All the other function are OK
the code is simple ::::

String SMSBody, SMSNum
.
.
void loop()
.
byte index = GSM.checkForSMS();
SMSBody=GSM.readSms(index);
SMSNum=GSM.getNumberSms(index);

Serial.println((String)"SMSBody :"+SMSBody);
Serial.println((String)"SMSNum :"+SMSNum);

and the results are
SMSBody :Turnon
SMSNum :

Can you help me?
Can you please edit the README.md comments?

The readSms() function(example code) does not display any response on the serial monitor. Anything inside other Serial.print() functions are appearing correctly. Any thing i might be missing?

Perhaps a personal issue, but I can't get the library to work.

I have a MEGA that talks via SoftwareSerial (10,11) to my SIM800L on 9600 using AT commands. So HW and SW Serial is OK.

I uploaded your library in IDE and tried several examples. It does not work. In the example below it does not even print normal text to monitor.

I really like the functionality you created. So it was a little disappointment that it did not work. Not sure what it is. I have used libraries many times, normally it works (almost) out of the box.

Any suggestion?

KR, Jan

#include <Sim800L.h>
#include <SoftwareSerial.h>
#define RX 10
#define TX 11
Sim800L GSM(RX, TX);

void setup(){
Serial.begin(9600);
GSM.begin(9600);
Serial.println("GET PRODUCT INFO: ");
Serial.println(GSM.getProductInfo());
}
void loop(){
}

Hi, great library! I was wondering if you've considered adding USSD support for things like checking balances and such?

Regards,
Brandon

Arduino nano rp2040 foes not have software serial library implementation. How can use this library witj Serial1?

The main problem is that sim800 is a class derived from softwareserial...

hi,
when I get the number it's ok but when I send to that number it didn't work

numberSms = gsm.getNumberSms(nSms);
gsm.sendSms(numberSms,sms);

error : no known conversion for argument 1 from 'String' to 'char*'

Hoping that this can be added, there is a way that you can make a HTTP Request: https://how2electronics.com/send-gsm-sim800-900-gprs-data-thingspeak-arduino/

Hello,
Thanks for the library for the SIM900.
But I have a question and I hope you can help me.
I want to join a meeting at Zoom (https://zoom.us/) via the SIM900.
To do this I have to enter (paste) the following (in Android phone) to automatically call:

Phone Number+Pause(2 seconds)+MeetingID+#+Pause(4 seconds)+HostID+#+Pause(4 seconds)+Password+#
(MeetingID and Password as an example)
+31207946519,,83411719839#,,,,#,,,,*999999#

callNumber(number) does not connect.
Only accepts a phone number.

Any idea how I get that to work?
Thank you very much for the effort.
Sincerely,
Arie van den Berg

error=GSM.sendSms(numberSms, text);

This line of code gives me this error:
no matching function for call to 'Sim800L::sendSms(String&, char*&)'

The number is set up as a string, and the text as a char* array.

Any idea what the problem might be?

(The whole code is pretty similar to the library's example one)