//#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
LiquidCrystal_I2C lcd(0x27,20,4); //LiquidCrystal_I2C lcd(0x20,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display or 20 chars and 4 line display

//#include <LiquidCrystal.h>
//LiquidCrystal lcd(3,4,5,6,7,8);
//int chk;
#define up 12
#define down 11
#define res 10
#define Clear 5
#define FAN 9
#define batt 8
#define AC A3
#define Temp A2
#define load1 6
#define load2 7
#define DHTPIN 2
#define DHTTYPE DHT22
#define PIRPIN 3
DHT dht(DHTPIN, DHT22);
int ldrPin = A0;     // LDR pin
int ldrVal = 0;
int temparature = 0;
int humidity = 0;
float temp = 0;
float arus = 0;
int illumination = 0;
int drive = 13;
int input = 0;
int downsel = 0;
int hum;
int suhu;
float voltage = 0;
float resistance = 0;
int lux = 0;
int pirState = LOW;
int val = 0;
byte Simbol_derajat = B11011111;
const float GAMMA = 0.7;
const float RL10 = 50;

void setup() {
 Serial.begin(9600);  // Initialise the serial monitor
 lcd.init();  // initialize the lcd 
 lcd.backlight();
 pinMode(2, OUTPUT);
 dht.begin();
 //lcd.begin(20,4);
 pinMode(up,INPUT_PULLUP);
 pinMode(down,INPUT_PULLUP);
 pinMode(res,INPUT_PULLUP);
 pinMode(Clear,INPUT_PULLUP);
 pinMode(FAN,OUTPUT);
 pinMode(batt,INPUT);
 pinMode(AC,INPUT);
 pinMode(load1,OUTPUT);
 pinMode(load2,OUTPUT);
 pinMode(Temp,INPUT);
 pinMode(A0, INPUT);
 pinMode(A1, INPUT);
 pinMode(A2, INPUT);
 pinMode(A3, INPUT);
 pinMode(drive, OUTPUT);
 pinMode(PIRPIN, INPUT);
// pinMode(led,OUTPUT);

 welcome();

 //lcd.setCursor(0, 0);
// lcd.write(byte(0)); // when calling lcd.write() '0' must be cast as a byte
// lcd.setCursor(0,1);  
// lcd.write(1);
// lcd.setCursor(0,2);  
// lcd.write(2);
// lcd.setCursor(0,3);  
// lcd.write(3);
// lcd.setCursor(1,0);  
//lcd.write(4);
 // lcd.setCursor(1,1);  
// lcd.write(5);
}

void welcome(){
  lcd.setCursor(5,0);
  lcd.print("WELCOME TO ");
  lcd.setCursor(5,1);
  lcd.print("PT.ADMS-TECH ");
  lcd.setCursor(3,2);
  lcd.print("Electrical and ");
  lcd.setCursor(0,3);
  lcd.print("Electronics Services");
  digitalWrite(13, HIGH);
  delay(1000);
  lcd.clear();
}

void home(){
temperature1();
humidity1();
illumination1();
}

void temperature1(){
  lcd.clear();
  lcd.setCursor(0,0); 
  lcd.print("STATUS WEATHER TODAY"); 
  lcd.setCursor(0,1);  //formula using for perform action power
  lcd.print("TEMPERATURE :      C");
  lcd.setCursor(15,1);
  lcd.print(suhu);
  lcd.setCursor(18,1);
  lcd.write(Simbol_derajat);
}


void humidity1(){  //formula using for perform action power
  lcd.setCursor(0,2);
  lcd.print("HUMIDITY    :      %");
  lcd.setCursor(15,2);
  lcd.print(hum);
  //lcd.setCursor(18,2);
  //lcd.write(Simbol_derajat);
}

void illumination1(){
  lcd.setCursor(0,3);   //formula using for perform action power
  lcd.print("LUMANATION  :     LX");
  lcd.setCursor(15,3);
  lcd.print(lux);
}

void temps(){
  lcd.clear();
  lcd.setCursor(0,0); 
  lcd.print("TEMP Status"); 
  lcd.setCursor(0,1);//formula using for perform action power
  lcd.print("TEMP 1:          C");
  //
  lcd.setCursor(7,1);
  lcd.print(temp);
  lcd.setCursor(0,2); //formula using for perform action power
  lcd.print("TEMP 2:          C");
  lcd.setCursor(7,2);
  lcd.print(temp);
  //
  lcd.setCursor(0,3);   //formula using for perform action power
  lcd.print("TEMP 3:          C");
  lcd.setCursor(7,3);
  lcd.print(temp);
   delay(150);
}

void arusflow(){
  lcd.clear();
  lcd.setCursor(0,0); 
  lcd.print("ARUS Status"); 
  lcd.setCursor(0,1);  //formula using for perform action power
  lcd.print("ARUS 1:          A");
  lcd.setCursor(7,1);
  lcd.print(arus);
  //
  lcd.setCursor(0,2);    //formula using for perform action power
  lcd.print("ARUS 2:          A");
  lcd.setCursor(7,2);
  lcd.print(arus);
  //
  lcd.setCursor(0,3);    //formula using for perform action power
  lcd.print("ARUS 3:          A");
  lcd.setCursor(7,3);
  lcd.print(arus);
   delay(150);
}

void voltages(){
  lcd.clear();
  lcd.setCursor(2,0); 
  lcd.print("AC VOLTAGE  Status"); 
  lcd.setCursor(0,1);
  lcd.print("Voltage:");
  lcd.setCursor(11,1);
  lcd.print("V");
  //
  lcd.setCursor(0,2);
  lcd.print("Current:");
  lcd.setCursor(11,2);
  lcd.print("A");
  //
  lcd.setCursor(0,3);
  lcd.print("Wattage:"); 
  lcd.setCursor(11,3);
  lcd.print("W");    
  delay(150);
}

void loads(){
  lcd.clear();
  lcd.setCursor(5,0); 
  lcd.print("LOAD  Status"); 
  lcd.setCursor(0,1);
  lcd.print("LOAD1:");
  //
  lcd.setCursor(0,2);
  lcd.print("LOAD2:");
  //
  lcd.setCursor(0,3);
  lcd.print("LOAD3:"); 
  delay(150);
}

void bgProses(){
  hum = dht.readHumidity();
  suhu = dht.readTemperature();
  //input = analogRead(A0);           //analogRead function is used to recive analog data Power
  //dht22 = (input * 40.0) / 1024.0; 

  //input = analogRead(A1);           //analogRead function is used to recive analog data Power
  //reflected = (input * 5.0) / 1024.0; 

  ldrVal = analogRead(ldrPin); // Read the analog value of the LDR
  voltage = ldrVal / 1024. * 5;
  resistance = 2000 * voltage / (1 - voltage / 5);
  lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
    //Serial.println(lux);

  

  val = digitalRead(PIRPIN);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
    digitalWrite(drive, HIGH);  // turn LED ON
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    digitalWrite(drive, LOW); // turn LED OFF
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }

  /*input = analogRead(A2);           //analogRead function is used to recive analog data Power
  temp = (input * 5.0) / 1024.0;

  input = analogRead(A2);           //analogRead function is used to recive analog data Power
  temp = (input * 20.0) / 1024.0;  

  input = analogRead(A2);           //analogRead function is used to recive analog data Power
  temp = (input * 5.0) / 1024.0;

  input = analogRead(A3);           //analogRead function is used to recive analog data Power
  arus = (input * 50.0) / 1024.0;  

  input = analogRead(A3);           //analogRead function is used to recive analog data Power
  arus = (input * 50.0) / 1024.0;  

  input = analogRead(A3);           //analogRead function is used to recive analog data Power
  arus = (input * 50.0) / 1024.0; */
}


// TAMPILAN MENU HOME STATUS SYSTEM
void status(){
lcd.clear();
switch(downsel){
  case 0:
    home();
    bgProses();
    delay(500);
    break;
  case 1:  
    temps();
    bgProses();
    delay(500);
    break;
  case 2:
    arusflow();
    bgProses();
    delay(500);
    break;
  case 3:
    voltages();
    bgProses();
    delay(500);
    break;
  case 4:
    loads();
    bgProses();   
    delay(500);
    break;
    }
    if(digitalRead(down) == LOW){ 
      downsel++;
      if(downsel > 4){
        downsel = 0;
      }
      delay(200);
    }
    if(digitalRead(up)== LOW){
      downsel--;
      if(downsel < 0){
        downsel = 4;
      }
      delay(200);
    }
    delay(100);
}


// PEMPROSESAN PROGRAM SYSTEM
// diskripsi [ jika refledted lebih besar dari 20 maka pin 13 high dan print high reflected]
// diskripsi [ jika rf in lebih besar dari 20 maka pin 13 high dan print over drive]
// diskripsi [ jika temperatur lebih besar dari 40 maka pin 13 high dan print high temperatur]
// diskripsi [ jika arus lebih besar dari 30 maka pin 13 high dan print high arus]
// diskripsi [ jika semua status dibawah nilai maka system kemali ke normal {void loop di status saja}]

void kelembapan(){
    digitalWrite(13, LOW);
    while(hum > 50){
    digitalWrite(13,HIGH);
    lcd.clear();
    lcd.setCursor(2,1);
    lcd.print("PENYIRAMAN TAMAN");
    lcd.setCursor(7,2);
    lcd.print("AKTIF");
    delay(150);
    bgProses();
    if(hum < 50){
      digitalWrite(13, LOW);
      return 0;
    }
    }
}

void cahaya(){
    digitalWrite(13, LOW);
    while(lux < 50){
    digitalWrite(13,HIGH);
    //lcd.clear();
    lcd.setCursor(4,1);
    lcd.print("LAMPU TAMAN");
    lcd.setCursor(7,2);
    lcd.print("AKTIF");
    delay(150);
    bgProses();
    if(illumination > 60){
      digitalWrite(13, LOW);
      return 0;
    }
    }
}






void loop() {
  status();
  kelembapan();
  cahaya();
  

}