CODEWITHSUNDEEP
arduinosim800sim800l
Silviu Babescu
Silviu Babescu

Reputation: 1

SIM 800L cannot connect to at

I am trying to send some data using the sim800l module.

I am using the SoftwareSerial library and connected the RX and TX pins to Digital pins 10 and 11. I have also tried pins 2 and 3.

The module is connected to a 5v power supply and the only pins connected to the Arduino board are RX and TX. The module is connected to the network. this is the code I am using:

#include <SoftwareSerial.h>
SoftwareSerial myGsm(10,11);

void setup()
{
 myGsm.begin(9600);  
 Serial.begin(9600);  
 delay(500);
 
 myGsm.println("AT+CGATT=1");
 delay(200);
 printSerialData();
 
 myGsm.println("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"");//setting the SAPBR,connection type is GPRS
 delay(1000);
 printSerialData();
 
 myGsm.println("AT+SAPBR=3,1,\"APN\",\"\"");//setting the APN,2nd parameter empty works for all networks 
 delay(5000);
 printSerialData();

The problem is that nothing gets printed in the serial monitor.

I used the module to send sms messages using the FONA library and it worked.

Please help!

Upvotes: 0

Views: 303

Answers (2)

Aadhav
Aadhav

Reputation: 1

actually, the SIM800l and the Arduinos should share GNDs.

Upvotes: 0

Vishnu Vinod
Vishnu Vinod

Reputation: 765

I think the problem is, To print something on the serial monitor, you need to use the Serial.println(); The softwareSerial println only sends data to the devices connected to that pins.

Upvotes: 0

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