sim 800l arduino long url call not working

Projects Programming
1

i am trying to use long url but it is not working if for loop 250 it is working but if for loop greater than 250 it isnot working .

how can i use long url

gprsSerial.print("AT+HTTPPARA="URL",""+ serveradress + "?action=" + action + "&time=" + times + "&kartid1=" + kartid + "&id=" + id + "&u=xxxxx&p=xxxxx&project_id=4&kartid=");

for (int letter = 0; letter < 1000; letter++) {
// char tempLetter = EEPROM.read(57 + letter);
gprsSerial.print(tempLetter );
delay(100);
}

gprsSerial.print(""" );
gprsSerial.println("" );

2

bug is line 42 and your red wire is not plugged in firmly... not 100% sure though - just from what I can see :slight_smile:

joke aside - do you think you shared enough info?

3

bool SubmitHttpRequest(String id, String kartid, String action, String times)
{
bool flag = false;
// Serial.println();
gprsSerial.println("AT+CSQ");
delay(100);

ShowSerialData();// this code is to show the data from gprs shield, in order to easily see the process of how the gprs shield submit a http request, and the following is for this purpose too.

gprsSerial.println("AT+CGATT?");
delay(100);

ShowSerialData();

gprsSerial.println("AT+SAPBR=3,1,"CONTYPE","GPRS"");//setting the SAPBR, the connection type is using gprs
delay(1000);

ShowSerialData();

gprsSerial.println("AT+SAPBR=3,1,"APN","0V0E.TMGS"");//setting the APN, the second need you fill in your local apn server
delay(4000);

ShowSerialData();

gprsSerial.println("AT+SAPBR=1,1");//setting the SAPBR, for detail you can refer to the AT command mamual
delay(5000);

ShowSerialData();

gprsSerial.println("AT+HTTPINIT"); //init the HTTP request

delay(3000);
ShowSerialData();

gprsSerial.print("AT+HTTPPARA="URL",""+ serveradress + "?action=" + action + "&time=" + times + "&kartid1=" + kartid + "&id=" + id + "&u=xxx&p=xxxx&project_id=4&kartid=");

for (int letter = 0; letter < 1000; letter++) {
// char tempLetter = EEPROM.read(57 + letter);
gprsSerial.print(1 );
delay(100);
}

gprsSerial.print(""" );
gprsSerial.println("" );

delay(4000);

ShowSerialData();

gprsSerial.println("AT+HTTPACTION=0");//submit the request
delay(10000);//the delay is very important, the delay time is base on the return from the website, if the return datas are very large, the time required longer.
//while(!mySerial.available());

ShowSerialData();

gprsSerial.listen();
delay(1000);

gprsSerial.println("AT+HTTPREAD");// read the data from the website you access
delay(300);

ShowSerialDataR(kartid, action, times);

gprsSerial.println("");
return false;
delay(100);

}

4

I'm pretty sure the print() function is not doing what you think. You can't concatenate multiple strings and variables together like that. You either need to use C functions to paste it all together or multiple calls to print()

gprsSerial.print("AT+HTTPPARA=\"URL\",\"");
gprsSerial.print(serveradress);
gprsSerial.print("?action=");
gprsSerial.print(action);
gprsSerial.print("&time=");
gprsSerial.print(times);
gprsSerial.print("&kartid1=");
// etc.
5

and please use CODE tags for your code

6

i tried this code but no luck.

blh64:
I'm pretty sure the print() function is not doing what you think. You can't concatenate multiple strings and variables together like that. You either need to use C functions to paste it all together or multiple calls to print()

gprsSerial.print("AT+HTTPPARA=\"URL\",\"");

gprsSerial.print(serveradress);
gprsSerial.print("?action=");
gprsSerial.print(action);
gprsSerial.print("&time=");
gprsSerial.print(times);
gprsSerial.print("&kartid1=");
// etc.

7

I'd stop using the String class and start listening to the gprsSerial incoming bytes and print them out to get a sense for what your modem is telling you...

please Post full code with code tags (and fix your initial posts please)

8

looks like the tx buffer's size is exceeded when you go over 250, you can increase it in softserial.h file or send your strings in parts, i mean you split your string to be sent, in 3 parts and send them