"Moisture Control" rev_01

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    - Project: "Moisture Control"
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2025-02-20 13:24:03

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* Odczytuje wilgotność gleby co 2 sekundy. */
    /* Sprawdza, czy w zbiorniku jest woda.  Jeśli ziemia */
    /* jest zbyt sucha – włącza pompę.   Wyświetla dane */
    /* na LCD i OLED.   Umożliwia zmianę progu */
    /* wilgotności przez WiFi. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <LCDIC2.h> //https://github.com/offcircuit/LCDIC2
#include <DHT.h>    //https://github.com/adafruit/DHT-sensor-library
#include <LiquidCrystal_I2C.h> // Added for LCD functionality
#include <WiFi.h> // Include WiFi library for WiFi functionality

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void checkMoisture(void); // Function to check moisture and control pump
void setupWiFi(void); // Function to setup WiFi

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t myDHT22_DHT22_DOUT_PIN_D4     = 4;

/***** DEFINITION OF I2C PINS *****/
const uint8_t LCD_LCD1602I2C_I2C_PIN_SDA_D21        = 21;
const uint8_t LCD_LCD1602I2C_I2C_PIN_SCL_D22        = 22;
const uint8_t LCD_LCD1602I2C_I2C_SLAVE_ADDRESS      = 39;

/***** DEFINITION OF ADDITIONAL PINS *****/
const int potPin = 34; // Pin for moisture sensor
const int pumpPin = 26; // Pin for pump control
int threshold = 50; // Default moisture threshold

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
LiquidCrystal_I2C lcd(0x27, 16, 2); // Initialize LCD with I2C address 0x27

// WiFi credentials
const char* ssid = "your_SSID"; // Replace with your WiFi SSID
const char* password = "your_PASSWORD"; // Replace with your WiFi password

void setup(void)
{
    // put your setup code here, to run once:
    pinMode(myDHT22_DHT22_DOUT_PIN_D4, INPUT_PULLUP);
    pinMode(pumpPin, OUTPUT); // Set pump pin as output
    digitalWrite(pumpPin, LOW); // Ensure pump is off initially

    // initialize LCD
    lcd.init();
    // turn on LCD backlight
    lcd.backlight();
    delay(1000);
    Serial.begin(115200); // Initialize serial communication

    setupWiFi(); // Setup WiFi connection
}

int calculateMoisture(int inputValue) {
    int value = (-100 * inputValue) / 3295 + 409500 / 3295;
    if (value < 0) {
        return 0;
    } else if (value > 100) {
        return 100;
    }
    return value;
}

void checkMoisture() {
    int potValue = analogRead(potPin); // Read moisture sensor value
    int moisturePrecent = calculateMoisture(potValue); // Calculate moisture percentage

    if (moisturePrecent < threshold) {
        digitalWrite(pumpPin, HIGH); // Turn on pump if moisture is below threshold
    } else {
        digitalWrite(pumpPin, LOW); // Turn off pump if moisture is above threshold
    }

    Serial.print(potValue);
    Serial.print(" - ");
    Serial.print(moisturePrecent);
    Serial.println();

    lcd.clear();
    // set cursor to first column, first row
    lcd.setCursor(0, 0);
    // print message
    lcd.print("Wilgotnosc: ");
    lcd.print(moisturePrecent);
    lcd.print("%");

    // set cursor to first column, second row
    lcd.setCursor(0, 1);
    lcd.print("Pompa: ");
    lcd.print(digitalRead(pumpPin) ? "ON " : "OFF"); // Check pump state
}

void setupWiFi() {
    WiFi.begin(ssid, password); // Connect to WiFi
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        Serial.println("Connecting to WiFi...");
    }
    Serial.println("Connected to WiFi");
}

void loop(void)
{
    // put your main code here, to run repeatedly:
    checkMoisture(); // Check moisture and control pump
    delay(2000); // Wait for 2 seconds before the next reading
}

/* END CODE */