Форум arduino.ua

#include <LiquidCrystal_I2C.h>
#include <Keypad.h>

const int NUM_CONTAINERS = 6;
const int PULSE_PINS[NUM_CONTAINERS] = {2, 3, 4, 5, 6, 7};
const int VALVE_PINS[NUM_CONTAINERS] = {8, 9, 10, 11, 12, 13};
const float PULSES_PER_LITER = 1000.0; // Кількість пульсів на один літр

LiquidCrystal_I2C lcd(0x27, 16, 2); // Адреса та розмір LCD дисплея
Keypad keypad(A0, A1, A2, A3, A4, A5); // Піни клавіатури

volatile float litersRemaining[NUM_CONTAINERS];
volatile bool valvesOpen[NUM_CONTAINERS];
volatile unsigned long pulses[NUM_CONTAINERS];

void setup() {
  lcd.begin(16, 2);
  lcd.print("Water Dispenser");
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[0]), countPulse0, FALLING);
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[1]), countPulse1, FALLING);
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[2]), countPulse2, FALLING);
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[3]), countPulse3, FALLING);
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[4]), countPulse4, FALLING);
  attachInterrupt(digitalPinToInterrupt(PULSE_PINS[5]), countPulse5, FALLING);
  for (int i = 0; i < NUM_CONTAINERS; i++) {
    litersRemaining[i] = 0.0;
    valvesOpen[i] = false;
    pinMode(VALVE_PINS[i], OUTPUT);
    digitalWrite(VALVE_PINS[i], HIGH);  // Закриття клапану
  }
}

void loop() {
  char key = keypad.getKey();

  if (key != NO_KEY) {
    switch (key) {
      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      case '6':
        selectContainer(key - '1');
        break;
      case '#':
        dispenseWater();
        break;
      default:
        break;
    }
  }
}

void selectContainer(int containerIndex) {
  lcd.clear();
  lcd.print("Container: ");
  lcd.print(containerIndex + 1);

  lcd.setCursor(0, 1);
  lcd.print("Liters: ");

  char litersInput[4];
  int i = 0;

  while (true) {
    char key = keypad.getKey();
    if (key != NO_KEY && key != '#' && i < 3) {
      lcd.setCursor(8 + i, 1);
      lcd.print(key);
      litersInput[i] = key;
      i++;
    } else if (key == '#') {
      litersInput[i] = '';
      float liters = atof(litersInput);
      litersRemaining[containerIndex] = liters;
      lcd.clear();
      lcd.print("Ready to dispense");
      delay(1000);
      lcd.clear();
      break;
    }
  }
}

void dispenseWater() {
  lcd.clear();
  lcd.print("Dispensing...");

  for (int i = 0; i < NUM_CONTAINERS; i++) {
    if (valvesOpen[i] && litersRemaining[i] > 0.0) {
      pulses[i] = 0;
      digitalWrite(VALVE_PINS[i], LOW); // Відкриття клапану
    }
  }

  while (true) {
    bool allContainersEmpty = true;
    for (int i = 0; i < NUM_CONTAINERS; i++) {
      if (valvesOpen[i] && litersRemaining[i] > 0.0) {
        allContainersEmpty = false;
        break;
      }
    }

    if (allContainersEmpty) {
      for (int i = 0; i < NUM_CONTAINERS; i++) {
        if (valvesOpen[i]) {
          digitalWrite(VALVE_PINS[i], HIGH); // Закриття клапану
          valvesOpen[i] = false;
        }
      }
      lcd.clear();
      lcd.print("Dispensing done");
      delay(2000);
      lcd.clear();
      break;
    }
  }
}

void countPulse0() {
  pulses[0]++;
  litersRemaining[0] -= (1.0 / PULSES_PER_LITER);
}

void countPulse1() {
  pulses[1]++;
  litersRemaining[1] -= (1.0 / PULSES_PER_LITER);
}

void countPulse2() {
  pulses[2]++;
  litersRemaining[2] -= (1.0 / PULSES_PER_LITER);
}

void countPulse3() {
  pulses[3]++;
  litersRemaining[3] -= (1.0 / PULSES_PER_LITER);
}

void countPulse4() {
  pulses[4]++;
  litersRemaining[4] -= (1.0 / PULSES_PER_LITER);
}

void countPulse5() {
  pulses[5]++;
  litersRemaining[5] -= (1.0 / PULSES_PER_LITER);
}