#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

const int pumpPin = 6;
const int temperatureSensorPin = A1;
const int moistureSensorPin = A0;
const int ultrasonicTrigPin = 7;
const int ultrasonicEchoPin = 8;

const int temperatureThreshold = 25;     // Temperature threshold in Celsius
const int moistureThreshold = 20;        // Moisture threshold
const int tanktotalheight = 100;     // Water level threshold (adjust as needed)
const int waterDistanceThreshold = 80;   // Water distance threshold in centimeters
void setup() {
  lcd.begin(16, 2);
  pinMode(pumpPin, OUTPUT);
  pinMode(ultrasonicTrigPin, OUTPUT);
  pinMode(ultrasonicEchoPin, INPUT);
  lcd.setCursor(0, 0);
  lcd.print("peppe8o.com");
  lcd.setCursor(0, 1);
  lcd.print("Pump System");
  delay(2000);
  lcd.clear();
}

void loop() {
  float temperature = -40 + 0.488155 * (analogRead(temperatureSensorPin) - 20);
  int moistureLevel = analogRead(moistureSensorPin);
  moistureLevel = map(moistureLevel, 0, 1023, 0, 100);
  
  // Read water distance from ultrasonic sensor
  long duration, distance;
  digitalWrite(ultrasonicTrigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(ultrasonicTrigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(ultrasonicTrigPin, LOW);
  duration = pulseIn(ultrasonicEchoPin, HIGH);
  distance = duration * 0.034 / 2;
  
  lcd.setCursor(0, 0);
  lcd.print("T:");
  lcd.print(temperature);
  lcd.print("C ");
  lcd.print("LVL:");
  lcd.print(tanktotalheight-distance);
  lcd.setCursor(0, 1);
  lcd.print("Moist:");
  lcd.print(moistureLevel);
  lcd.print("%");
 
  delay(1000); // Adjust delay according to your needs
  lcd.clear();

  // Control pump based on conditions
  if (temperature > temperatureThreshold || moistureLevel < moistureThreshold || distance > waterDistanceThreshold) {
    // Conditions met, turn on pump
    digitalWrite(pumpPin, HIGH);
    lcd.setCursor(5, 0);
    lcd.print("Pump ON ");
  } else {
    // Conditions not met, turn off pump
    digitalWrite(pumpPin, LOW);
    lcd.setCursor(5, 0);
    lcd.print("Pump OFF");
  }
  delay(1000); // Adjust delay according to your needs
  lcd.clear();
}