#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27,20,4);
#define DHTPIN 9     
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);

const int AirValue = 540;   
const int WaterValue = 250;  
int Value1 = 0; 
int Value2 = 0;
int Value3 = 0; 
int Value4 = 0;

int percent1=0; 
int percent2=0;
int percent3=0; 
int percent4=0;

int redpin=8;
int greenpin=7;
int bluepin=6;

int pump1 = 2;
int pump2 = 3;
int pump3 = 4;
int pump4 = 5;

byte m[8]= {4,14,14,31,4,4,4,14};
byte n[8]= {0,0,16,8,5,3,7,0};

int sensorpin1=A0; 
int sensorpin2=A1;
int sensorpin3=A2; 
int sensorpin4=A3;

void setup() {
  Serial.begin(9600); 
  pinMode(9,INPUT);
  pinMode(8,OUTPUT);
  pinMode(7,OUTPUT);
  pinMode(6,OUTPUT);

  lcd.init();
  lcd.backlight();
  lcd.createChar(1,m);
  lcd.createChar(2,n);
  dht.begin();
}
void loop() {
float h = dht.readHumidity();
float t = dht.readTemperature();
float f = dht.readTemperature(true);
float hif = dht.computeHeatIndex(f, h);
float hic = dht.computeHeatIndex(t, h, false);  

Value1 = analogRead(A0);
Value2 = analogRead(A1); 
Value3 = analogRead(A2);
Value4 = analogRead(A3);

Serial.print("value1: ");
  Serial.println(percent1);
Serial.print("value2: ");
  Serial.println(percent2);
Serial.print("value3: ");
  Serial.println(percent3);
Serial.print("value4: ");
  Serial.println(percent4);
Serial.print("Humidity: ");
  Serial.print(h);
	Serial.print("%    Temp: ");
  Serial.println(t);

percent1 = map(Value1, AirValue, WaterValue, 0, 100);
percent2 = map(Value2, AirValue, WaterValue, 0, 100);
percent3 = map(Value3, AirValue, WaterValue, 0, 100);
percent4 = map(Value4, AirValue, WaterValue, 0, 100);

if (h<20 && h>0 || h<100 && h>60 ){
      digitalWrite(8,HIGH);
      digitalWrite(6,LOW);
      digitalWrite(7,LOW);
      delay(500);}
else if (h<40 && h>20){
      digitalWrite(6,HIGH);
      digitalWrite(7,LOW);
      digitalWrite(8,LOW);
      delay(500);}
else if(h<60 && h>40){
      digitalWrite(7,HIGH);
      digitalWrite(8,LOW);
      digitalWrite(6,LOW);}

if(percent1 >= 100)
{
  lcd.setCursor(0, 0);
  lcd.print("M1=100");
  lcd.setCursor(6, 0);
  lcd.print("%");
  lcd.setCursor(7, 0);
  lcd.write( 2);
  lcd.write(1);
  delay(250);
  }
  else if(percent1 <=0)
  {
  lcd.setCursor(0, 0);
  lcd.print("M1=0");
  lcd.setCursor(6, 0);
  lcd.print("%");
  lcd.setCursor(7, 0);
  lcd.write( 2);
  lcd.write(1);
  delay(250);
  }
  else if(percent1 >0 && percent1 < 100)
  {
  lcd.setCursor(0, 0);
  lcd.print("M1=");
  lcd.print(percent1);
  lcd.setCursor(6, 0);
  lcd.print("%");
  lcd.setCursor(7, 0);
  lcd.write( 2);
  lcd.write(1);
  delay(500);
  }

if(percent2 >= 100)
  {
      lcd.setCursor(10, 0);
      lcd.print("M2=100");
      lcd.setCursor(17, 0);
      lcd.print("%");
      lcd.setCursor(18, 0);
      lcd.write( 2);
      lcd.write(1);
      delay(250);
    }
    else if(percent2 <=0)
    {
      lcd.setCursor(10, 0);
      lcd.print("M2=0");
      lcd.setCursor(17, 0);
      lcd.print("%");
      lcd.setCursor(18, 0);
      lcd.write( 2);
      lcd.write(1);
      delay(250);
    }
    else if(percent2 >0 && percent2 < 100)
    {
      lcd.setCursor(10, 0);
      lcd.print("M2=");
      lcd.print(percent2);
      lcd.setCursor(17, 0);
      lcd.print("%");
      lcd.setCursor(18, 0);
      lcd.write( 2);
      lcd.write(1);
      delay(500);
    }  

if(percent3 >= 100)
    {
    lcd.setCursor(0, 1);
    lcd.print("M3=100");
    lcd.setCursor(6, 1);
    lcd.print("%");
    lcd.setCursor(7, 1);
    lcd.write( 2);
    lcd.write(1);
    delay(250);
  }
  else if(percent3 <=0)
  {
    lcd.setCursor(0, 1);
    lcd.print("M3=0");
    lcd.setCursor(6, 1);
    lcd.print("%");
    lcd.setCursor(7, 1);
    lcd.write( 2);
    lcd.write(1);
    delay(250);
  }
  else if(percent3 >0 && percent3 < 100)
  {
    lcd.setCursor(0, 1);
    lcd.print("M3=");
    lcd.print(percent3);
    lcd.setCursor(6, 1);
    lcd.print("%");
    lcd.setCursor(7, 1);
    lcd.write( 2);
    lcd.write(1);
    delay(500);
  }
if(percent4 >= 100)
    {
      lcd.setCursor(10, 1);
      lcd.print("M4=100");
      lcd.setCursor(17, 1);
      lcd.print("%");
      lcd.setCursor(18, 1);
      lcd.write( 2);
      lcd.write(1);
      delay(250);
    }
    else if(percent4 <=0)
    {
      lcd.setCursor(10, 1);
      lcd.print("M4=0");
      lcd.setCursor(17, 1);
      lcd.print("%");
      lcd.setCursor(18, 1);
      lcd.write( 2);
      lcd.write(1);
      delay(250);
    }
    else if(percent4 >0 && percent4 < 100)
    {
      lcd.setCursor(10, 1);
      lcd.print("M4=");
      lcd.print(percent4);
      lcd.setCursor(17, 1);
      lcd.print("%");
      lcd.setCursor(18, 1);
      lcd.write( 2);
      lcd.write(1);
      delay(500);
    }  
    lcd.setCursor(0,3);
    lcd.print("H= ");
    lcd.write(h);
    lcd.print("% ");
    lcd.print("   ,T= ");
    lcd.write(t);
    lcd.print("C");
              
if(percent1<20){
            digitalWrite(pump1,HIGH);
            delay(100);}
        else if(percent1>20){
           digitalWrite(pump1,LOW);}
            if(percent1<20){
              digitalWrite(pump1,LOW);
              lcd.setCursor(0,2);
              lcd.print("PUMP1 off no water");
							delay(1000);
            }
if(percent2<20){
            digitalWrite(pump2,HIGH);
            delay(10000);}
        else if(percent2>20){
           digitalWrite(pump2,LOW);}
            if(percent2<20){
              digitalWrite(pump2,LOW);
              lcd.setCursor(0,2);
              lcd.print("PUMP2 off no water");
							delay(1000);
            }
if(percent3<20){
            digitalWrite(pump3,HIGH);
            delay(10000);}
        else if(percent3>20){
           digitalWrite(pump3,LOW);}
            if(percent3<20){
              digitalWrite(pump3,LOW);
              lcd.setCursor(0,2);
              lcd.print("PUMP3 off no water");
							delay(1000);
            }
if(percent4<20){
            digitalWrite(pump4,HIGH);
            delay(10000);}
        else if(percent4>20){
           digitalWrite(pump4,LOW);}
            if(percent4<20){
              digitalWrite(pump4,LOW);
              lcd.setCursor(0,2);
              lcd.print("PUMP4 off no water");
							delay(5000);
            }
lcd.clear();  
}