Hello there below is the code I wrote to transmit sensor stays and location and transmits through sim800 sometimes the sim800 transmits and sometimes it does not
Sim800.println(“AT+CGATT=1\r\n”);
delay(100);
toSerial();
// bearer settings
Sim800.println(“AT+SAPBR=3,1,“CONTYPE”,“GPRS””);
delay(2000);
toSerial();
// bearer settings
Sim800.println(“AT+SAPBR=3,1,“APN”,“web.gprs.mtnnigeria.net””);
delay(2000);
toSerial();
// bearer settings
Sim800.println(“AT+SAPBR=1,1”);
delay(2000);
toSerial();
Sim800.println(“AT+SAPBR=2,1”);
delay(2000);
toSerial();
// initialize http service
Sim800.println(“AT+HTTPINIT”);
delay(2000);
toSerial();
Sim800.println(“AT+HTTPPARA=CID,1”);
delay(2000);
toSerial();
// set http param value
Sim800.println("AT+HTTPPARA=“URL”,“https://weatherdetector.ng/dht11/v1/activate.php?sensor_code=ng&status=0"”); // Send PARA command
delay(2000);
toSerial();
// set http action type 0 = GET, 1 = POST, 2 = HEAD
Sim800.println(“AT+HTTPACTION=0”);
delay(6000);
toSerial();
// read server response
Sim800.println(“AT+HTTPREAD”);
delay(5000);
toSerial();
Sim800.println("");
Sim800.println(“AT+HTTPTERM”);
toSerial();
delay(1000);
Sim800.println("");