// Pengatur pompa air otomatis berdasarkan ketinggian air pada bak
// dilengkapi timer sebagai pengaman jika suatu saat sensor mengalami kerusakan
// Ketinggian air pada bak dapat diketahui pada status LED kuning, hijau dan merah 
// status pompa air dapat dilihat pada LED warna ungu
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

Adafruit_SSD1306 display = Adafruit_SSD1306(128, 64, &Wire);

#define LED_Air_Kosong 0   // No pin pada Uno
#define LED_Air_Tengah 1
#define LED_Air_Penuh 2
#define Relay_CutOff 3
#define LED_CutOff 4
#define Relay_Pompa 13
#define Sensor_Air_Kosong 8  // No Pin Uno
#define Sensor_Air_Tengah 9
#define Sensor_Air_Penuh 10
#define CutOff_Button 12
#define Pot_Pin A0

//uint8_t Level_Air;
String Level_Air;
String Status_Pompa;
//int Ketinggian_Air;
long int Timer_Pompa;
bool CutOff_State;
int PotAnalog_in;

void setup() {
  // put your setup code here, to run once:

CutOff_State=false;
Timer_Pompa=0;


 display.begin(SSD1306_SWITCHCAPVCC, 0x3C);

  // Display the logo Adafruit
 // display.display();

unsigned long start = millis();

  display.clearDisplay();
  //  drawCourt();

    while(millis() - start < 1500);
    display.display();

//--------------------------------
pinMode(Sensor_Air_Kosong, INPUT);
pinMode(Sensor_Air_Tengah, INPUT);
pinMode(Sensor_Air_Penuh, INPUT);

pinMode(LED_Air_Kosong, OUTPUT);
pinMode(LED_Air_Tengah, OUTPUT);
pinMode(LED_Air_Penuh, OUTPUT);
pinMode(Relay_Pompa, OUTPUT);
pinMode(Relay_CutOff, OUTPUT);
pinMode(LED_CutOff, OUTPUT);
pinMode(CutOff_Button, INPUT_PULLUP);
pinMode(4, OUTPUT);

Status_Pompa="POMPA MATI";

}

void loop() {
  // put your main code here, to run repeatedly:
//-------------------------------------------------------
 static bool Reset_CutOff;
 int val;
 Reset_CutOff |= (digitalRead(CutOff_Button) == LOW); 

    display.setCursor(100, 30);
    display.print(Reset_CutOff);
    display.display(); delay(10);

 if (Reset_CutOff) {
  CutOff_State = false;
  digitalWrite(Relay_CutOff, LOW);
  WaterFull_Tone;
  Reset_CutOff=false;
  } 

  if (CutOff_State == true) {
    CutOff_Tone();
  }

//-----------------------------------------------------

if (CutOff_State == false) {

PotAnalog_in = analogRead(Pot_Pin);  // A0

if (digitalRead(Sensor_Air_Kosong) == HIGH) {
    digitalWrite(LED_Air_Kosong, HIGH);
  } else {
    digitalWrite(LED_Air_Kosong, LOW);
  }

if (digitalRead(Sensor_Air_Tengah) == HIGH) {
    digitalWrite(LED_Air_Tengah, HIGH);
  } else {
    digitalWrite(LED_Air_Tengah, LOW);
   }

if (digitalRead(Sensor_Air_Penuh) == HIGH) { 
     digitalWrite(LED_Air_Penuh, HIGH);
  } else {
    digitalWrite(LED_Air_Penuh, LOW);
  }

//------------Pompa---------------
if (digitalRead(Sensor_Air_Tengah) == LOW) {
    digitalWrite(Relay_Pompa, HIGH);
    Status_Pompa="POMPA HIDUP";
   // PumpRun_Tone();
  }

else if ((digitalRead(Sensor_Air_Penuh) == HIGH) && (digitalRead(Sensor_Air_Kosong == LOW))) {
    digitalWrite(Relay_Pompa, LOW);
    Status_Pompa="POMPA MATI";
    Timer_Pompa=0;
  }


//-----------Status Ketinggian Air--------
if (digitalRead(Sensor_Air_Penuh) == HIGH) {
   Level_Air = "AIR PENUH!";
   WaterFull_Tone();
}
   else if (digitalRead(Sensor_Air_Tengah) == HIGH) {
     Level_Air = "AIR SETENGAH";
   }  
   else {
     Level_Air = "AIR KOSONG";
     //CutOff_State=false;
   }
           
            if ((Timer_Pompa == PotAnalog_in) || (CutOff_State == true)) {
             Status_Pompa="POMPA MATI";
             digitalWrite(Relay_CutOff, HIGH);
             digitalWrite(Relay_Pompa, LOW);
             CutOff_State=true;
             Timer_Pompa=0;
            }

        
            if (Status_Pompa=="POMPA HIDUP") {
              Timer_Pompa=++Timer_Pompa;
              PumpRun_Tone();
              }
           
//--------------Display OLED-----------
            display.clearDisplay();
            display.setTextColor(WHITE, BLACK);
            display.setCursor(15, 10);
            display.print("Timer:");
            display.setCursor(55, 10);
            display.print(Timer_Pompa);
            display.setCursor(80, 10);
            display.print("of");
            //-----------
            display.setCursor(98, 10);
            display.print(PotAnalog_in);
            display.setCursor(15, 30);
            display.print(Status_Pompa);
            display.setCursor(15, 50);
            display.print(Level_Air);
            
          
            display.display();
            
             delay(100);

       //     display.clearDisplay();
        //    drawCourt();


}
}

void drawCourt() 
{
    display.drawRect(0, 0, 128, 54, WHITE);
}

void PumpRun_Tone()
{
    tone(11, 2000, 30);
    delay(100);
    noTone(11);
    tone(11, 2000, 30);
    delay(750);
    noTone(11);
   
   
}

void WaterFull_Tone()
{
    tone(11, 200, 25);
    delay(50);
    noTone(11);
    delay(25);
    tone(11, 250, 25);
    delay(25);
    noTone(11);
}

void CutOff_Tone()
{
    tone(11, 2200, 50);  // Pin, Frequency, duration
    digitalWrite(LED_CutOff, HIGH);  // LED CutOff
    delay(50);
    noTone(11);
    digitalWrite(LED_CutOff, LOW);  // LED CutOff
    delay(400);

}

void WaterOverload_Tone()
{
    tone(11, 220, 25);
    delay(50);
    noTone(11);
    delay(40);
    tone(11, 280, 25);
    delay(20);
    noTone(11);
}