#include "WiFi.h"

const char* ssid = "Wokwi-GUEST";
const char* pass = "";
const char* host = "api.thingspeak.com";
const char* writeApiKey = "588FYHVWWF1YBU0L";

int temp;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin(ssid,pass);
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("CONNECTED!!!");

  pinMode(2, OUTPUT);
  pinMode(A0, INPUT);
}

void loop() 
{
  temp = analogRead(A0);

  WiFiClient client;
  const int http = 80;
  if (!client.connect(host,http))
  {
    return;
  }

  if (temp >= 10)
  {
    digitalWrite(2, HIGH);
  }
  else
  {
    digitalWrite(2, LOW);    
  }
  Serial.println("Temp: ");
  Serial.print(temp);
  Serial.print("\n");

  client.println(sendThing());
  delay(15000);
}

String sendThing()
{
  String command = String("GET ") +
                   "/update?key="+
                   writeApiKey+
                   "&field1="+
                   String(temp)+ "\r\n"+
                   "HTTP/1.1 200 OK\r\n"+
                   "Host: "+host+"\r\n"+
                   "Connection: close\r\n\r\n";
  Serial.print(command);
  return command;
}