#include "DHT.h"
#include <WiFi.h>
#include "ThingSpeak.h"


const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber =2474831;
const char* myApiKey = "PJZLW3O2OAUMIU93";
const char* server = "api.thingspeak.com";
WiFiClient client;

int led = 17;
int buzzer = 5;
#define DHTPIN 2     // Digital pin connected to the DHT sensor
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE);
int kondisi;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(led, OUTPUT);
  pinMode(buzzer, OUTPUT);
  dht.begin();

 WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  Serial.println("Hello, ESP32!");
}

void loop() {
//  alarm(1000,100);
  dht22 ();
}


void alarm(int f, int d){
  digitalWrite(led, HIGH);
  tone(buzzer, f);
  delay(d); // this speeds up the simulation
  digitalWrite(led, LOW);
  noTone(buzzer);
  delay(d); // this speeds up the simulation
}

void dht22 (){
   delay(500);
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.println(F("°C "));

   if(t > 40){
      alarm(10000,50);
      kondisi = 40;
   }
   else if (t >= 30 && t <=40){
      alarm(5000,500);
      kondisi = 30;
    }
   else {
      alarm(1000,1000);
      kondisi = 0;
   }

  ThingSpeak.setField(1,t);
  ThingSpeak.setField(2,h);
  ThingSpeak.setField(3,kondisi);
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);

  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
}