get_request.txt

#include <SoftwareSerial.h>

SoftwareSerial gsmSerial(17, 16); 
const char* SERVER_URL = "https://api.thingspeak.com/update?api_key=NXZ8BW7FX347SMSX&field1=";

void setup() {
  Serial.begin(9600);
  gsmSerial.begin(9600); 
}

bool sendATCommand(String command) {
  Serial.println("Sending command: " + command);
  gsmSerial.println(command);
  delay(1000); 

  while (gsmSerial.available()) {
    Serial.write(gsmSerial.read());
  }
  
  String response = gsmSerial.readStringUntil('\n');
  Serial.println("Response: " + response);
  return response.startsWith("OK");
}

void loop() {
  float latitude = 15.483404; 
  float longitude = 74.939025;

  
  String url = String(SERVER_URL) + String(latitude, 6) + "&field2=" + String(longitude, 6);

  if (sendATCommand("AT+HTTPINIT") &&
      sendATCommand("AT+HTTPPARA=\"URL\",\"" + url + "\"") &&
      sendATCommand("AT+HTTPACTION=0")) {
    delay(10000); 
    sendATCommand("AT+HTTPTERM");
  } else {
    Serial.println("Failed to perform HTTP request.");
  }
  delay(5000); 
}