#include <WiFi.h>
#include <HTTPClient.h>
const char ssid[] = "Wokwi-GUEST";
const char password[] = "";
HTTPClient http;
WiFiClient  client;

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

#include <ESP32Servo.h>
Servo servohum, servotemp;
const int servohumPin = 13;
const int servotempPin = 12;

#include "ThingSpeak.h"
unsigned long myChannelNumber = 2024376;  //Nomor channel Thingspeak
const char * myReadAPIKey = "K8Y7DJREJ64DU5T9"; //kode ReadAPIKey 
int statusCode = 0;      
unsigned int HumidityFieldNumber = 2; 
unsigned int TemperatureFieldNumber = 3; 

float hum=0;
float temp=0;

void print_lcd(){
  lcd.setCursor(0, 0);
  lcd.print("Humidity: ");
  lcd.print(hum);
  lcd.print("%");
  lcd.setCursor(0, 1);
  lcd.print("Temperature: ");
  lcd.print(temp);
  lcd.print("%");
}

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  servohum.attach(servohumPin, 500, 2400);
  servotemp.attach(servotempPin, 500, 2400);
  servohum.write(0);
  servohum.write(0);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected");
  ThingSpeak.begin(client); 
}

void loop() {
  int statusCode = 0;
  hum = ThingSpeak.readFloatField(myChannelNumber, HumidityFieldNumber, myReadAPIKey);  
  temp = ThingSpeak.readFloatField(myChannelNumber, TemperatureFieldNumber, myReadAPIKey);     
  statusCode = ThingSpeak.getLastReadStatus();
  if(statusCode == 200){
    Serial.println("Humidity: " + String(hum));
    Serial.println("Temperature: " + String(temp));
  }
  else{
    Serial.println("Problem reading channel. HTTP error code " + String(statusCode)); 
  }
  print_lcd();
  int maks = hum;
  if(maks < temp){
    maks = temp;
  }
  for(int i = 1;i<=maks ;i++){
    if(i<=hum){
      servohum.write(i);
    }
    if(i<=temp){
      servotemp.write(i);
    }
  }
  delay(15000); // No need to read the counter too often.
}