// Program yang dapat membaca suhu, menyalakan kipas, menyalakan lampu, 
// dan siram tanaman otomatis) menggunakan mikrokontroller arduino uno.

// Nama : Azizah Qolbu Antika
// NPM : 20552011079
// Kelas : TIF RM - 20 CID A ONLINE
// Mata Kuliah : Pengujian Perangkat Lunak
// Sekolah Tinggi Teknologi Bandung

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
#include <Servo.h>
Servo Azizahservo;
Servo Azizahservo1;

int led = 11;
int lux = 0;
int p;
int Trig = 4;
int Echo = 8;
long duration;
int distance;
const float BETA = 3950;
int buzzer = 12;

void setup() { //mensetup kondisi awal yang ada diperangkat
  //meletakkan kode penyiapan di sini, untuk dijalankan sekali:
  Serial.begin(9600);
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);
  lcd.init();
  lcd.backlight();
  tone(buzzer, 700);
  delay(1000);
  noTone(buzzer);
  lcd.setCursor(0,0);
  lcd.print("Ukur Suhu Tubuh");
  lcd.setCursor(0,1);
  lcd.print("By Azizah Qolbu");
  delay(4000);
  pinMode(led, OUTPUT);
  pinMode(buzzer, OUTPUT);
  Azizahservo.attach(9);
  Azizahservo1.attach(10);
}

void loop() { 
  //digunakan untuk mensetup program supaya program dapat bekerja secara aktif
  int analogValue = analogRead(A1);
  float Celcius = 1 / (log(1 / (1023. / analogValue -1)) / BETA + 1.0 / 298.15) - 273.15;
  lcd.clear();
  digitalWrite(Trig, LOW);
  delayMicroseconds(2);
  digitalWrite(Trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trig, LOW);

  duration = pulseIn(Echo, HIGH);
  distance = duration * 0.0343/2; // 0.343 adalah kecepatan gelombang ultrasonik

  if(distance <= 50) {
    if((Celcius >= 36.1)&&(Celcius <= 37.2)) {
      lcd.setCursor(0,0);
      lcd.print("Suhu : ");
      lcd.print(Celcius);
      lcd.print(" oC");
      lcd.setCursor(0,1);
      lcd.print("NORMAL, KIPAS ON");
      delay(1000);
      Azizahservo1.write(180);
    }
    if((Celcius < 36.1)) {
      Azizahservo1.write(90);
      lcd.setCursor(0,0);
      lcd.print("Suhu : ");
      lcd.print(Celcius);
      lcd.print(" oC");
      lcd.setCursor(0,1);
      lcd.print("SUHU RENDAH!");
      delay(1000);
    }
    if((Celcius > 37.2)) {
      Azizahservo1.write(90);
      lcd.setCursor(0,0);
      lcd.print("Suhu : ");
      lcd.print(Celcius);
      lcd.print(" oC");
      lcd.setCursor(0,1);
      lcd.print("SUHU TINGGI!");
      delay(1000);
    }
  }
  if(distance > 50) {
    lcd.setCursor(0,0);
    lcd.print("Mohon Mendekat!");
    lcd.setCursor(0,1);
    lcd.print("Agar Terdeteksi");
    delay(1000);
  }
  intensitasChy();

}

void intensitasChy() {
  lux = analogRead(A0);
  p = map(lux, 0, 1023, 0, 255);
  analogWrite(led, p);
  if((p <= 4)&&(p > 3)) {
    Azizahservo.write(0);
    delay(500);
    Azizahservo.write(90);
    delay(500);
    Azizahservo.write(180);
    delay(500);
    Azizahservo.write(90);
  }
  else {
    Azizahservo.write(90);
  }
}