#include <Servo.h>
#include "DHT.h"

#define DHTTYPE DHT22
DHT dht(13, DHTTYPE);
float h, t;
long timePrint=0;

int ledT=12;
int ledH=33;

int btnFan=25;
int btnFanBefore=0;
long timePress1=0;

int btnH=32;
int btnHBefore=0;
long timePress2=0;

// mô phỏng Fan
int boolFan=0;
int pos = 180; 
int increment = -1; 
Servo myservo;
void setup() {
  Serial.begin(115200);
  myservo.attach(26);
  dht.begin();
  pinMode(btnFan, INPUT);
  pinMode(btnH, INPUT);
  pinMode(ledT, OUTPUT);
  pinMode(ledH, OUTPUT);

}

void loop() {
  int reading1=digitalRead(btnFan);
  int reading2=digitalRead(btnH);
  t = dht.readTemperature();
  h = dht.readHumidity();
  //Serial print
  if (millis() - timePrint >= 2000) {
    Serial.print("Nhiệt độ: ");
    Serial.println(t);
    Serial.print("Độ ẩm: ");
    Serial.println(h);
    timePrint = millis();
  }
  //chuc nang 1
  if(t>25){
      digitalWrite(ledT, HIGH);
      if(reading1&&reading1!=btnFanBefore)
      timePress1=millis();
      if(reading1&&millis()-timePress1>30&timePress1>0){
      timePress1=-1;
      boolFan=!boolFan;
      }
  }
  else {
    digitalWrite(ledT, LOW);
    boolFan=0;
  }
  if(t>25&&boolFan){
    fanRun();
  }
  //chuc nang 2
  if(reading2&&reading2!=btnHBefore){
    timePress2=millis();
  }
  if(h>70){
    if(reading2&&millis()-timePress2>30&&timePress2>0){
      timePress2=-1;
      digitalWrite(ledH,HIGH);
    }
  }
  else
    digitalWrite(ledH, LOW);
    
  btnFanBefore=reading1;
  btnHBefore=reading2;
}

void fanRun(){
  if (pos < 0 || pos > 180) 
    increment *= -1;
    pos += increment; 
    myservo.write(pos); 
    delay(2); 
}