SMART HYDROPONIC -V0

//By M. Afdal Zikri || BPVP Belitung

#include <Keypad.h>

#include <LiquidCrystal_I2C.h>

#include <EEPROM.h>

byte pinBaris[4] = {13,12,11,10};

byte pinKolom[4] = {9,8,7,6};

char kar[4][4] = {

  {'1', '2', '3', 'A'},

  {'4', '5', '6', 'B'},

  {'7', '8', '9', 'C'},

  {'*', '0', '#', 'D'}

};

LiquidCrystal_I2C lcd(0x27,16,2);

Keypad keypad(makeKeymap(kar), pinBaris, pinKolom, 4,4);

bool ledLcd = true;

String dataTDS = "";

int setTDS = 0;

int bintang = 0;

bool pompaIrigasi = false;

bool pompaNutrisi = false;

int barisLcd = 11;

bool kedip = false;

bool suruhKedip = false;

unsigned long lastKedip = 0L;

void setup() {

  pinMode(4, OUTPUT);

  pinMode(5, OUTPUT);

  digitalWrite(4, LOW);

  digitalWrite(5, LOW);

  lcd.init();

  lcd.backlight();

  lcd.setCursor(0,0);

  lcd.print("   HIDROPONIK   ");

  lcd.setCursor(0,1);

  lcd.print("     PINTAR     ");

  EEPROM.get(0, setTDS);

  delay(2000);

  lcd.clear();

}

void loop() {

 char key = keypad.getKey();

 if(key != NO_KEY){

  switch(key){

    case 'A' :

      pompaIrigasi = !pompaIrigasi;

      digitalWrite(4, pompaIrigasi);

      break;

    case 'B' :

      pompaNutrisi = !pompaNutrisi;

      digitalWrite(5, pompaNutrisi);

      break;

    case 'C' :

      ledLcd = !ledLcd;

      if (ledLcd) lcd.backlight();

      else lcd.noBacklight();

      break;

    case 'D' :

      setTDS = 0;

      EEPROM.put(0, setTDS);

      break;

    case '*' :

      lcd.clear();

      suruhKedip = true;

      bintang++;

      if (bintang > 1) {

        bintang = 0;

        suruhKedip = false;

      }

      break;

  }

 }

 if(bintang == 0) utama();

 if (suruhKedip) berkedip();

  else lcd.display();

 if(bintang == 1) satu(key);

}

void utama(){

  int sensor = analogRead(A0);

  int nilaiTDS = map(sensor, 0, 1023, 0, 2000);

  lcd.setCursor(0,0);

  lcd.print("Nilai TDS: " + String(nilaiTDS) + "  ");

  lcd.setCursor(0,1);

  lcd.print("Batas TDS: " + String(setTDS) + "  ");

}

void satu(char tomb){

  lcd.setCursor(0,0);

  lcd.print("Set Batas: ");

  lcd.setCursor(0,1);

  lcd.print("Simpan -> #");

  if (tomb >= '0' && tomb <= '9' ){

    lcd.setCursor(barisLcd, 0);

    lcd.print(tomb);

    dataTDS += tomb;

    barisLcd++;

  }

  if (tomb == '#'){

    suruhKedip = false;

    barisLcd = 11;

    if(dataTDS.length() <= 4) {

      setTDS = dataTDS.toInt();

      EEPROM.put(0, setTDS);

      lcd.clear();

      lcd.setCursor(0,0);

      lcd.print(" Data Tersimpan ");

      delay(500);

      lcd.clear();

      dataTDS = "";

      bintang = 0;

    }

    else {

      lcd.clear();

      lcd.setCursor(0,0);

      lcd.print(" Format Salah!! ");

      lcd.setCursor(0,1);

      lcd.print("    Set Ulang   ");

      delay(500);

      lcd.clear();

      dataTDS = "";

      bintang = 0;

    }

  }

}

void berkedip(){

  if(millis() - lastKedip >= 500) {

    lastKedip = millis();

    kedip = !kedip;

  }

  if (kedip) lcd.noDisplay();

  else lcd.display();

}