Program for Asmodeus

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    - Project: Asmodeus
    - Source Code created on: 2023-05-02 22:34:33
    - Source Code generated by: Alessandro

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/****** DEFINITION OF LIBRARIES *****/
#include "Arduino.h"
#include "DHT.h"
#include "LiquidCrystal_I2C.h"

/***** DEFINITION OF ANALOG INPUT PINS *****/
#define soilMoistureSensor_PIN_A0   A0
#define LDRSensor_PIN_A5    A5

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
#define BuzzerPin_PIN_D8    8
#define fanPin_PIN_D9   9

/***** DEFINITION OF INPUT RAW VARIABLES *****/
/***** used to store raw data *****/
unsigned int soilMoistureSensor_PIN_A0_rawData = 0; // Analog Input
unsigned int LDRSensor_PIN_A5_rawData = 0; // Analog Input

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool BuzzerPin_PIN_D8_rawData = 0;
bool fanPin_PIN_D9_rawData = 0;

/***** DEFINITION OF INPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float soilMoistureSensor_PIN_A0_phyData = 0.0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float BuzzerPin_PIN_D8_phyData = 0.0;
float fanPin_PIN_D9_phyData = 0.0;

/***** DEFINITION OF DHT SENSOR *****/
#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);

/***** DEFINITION OF LCD *****/
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup()
{
    // put your setup code here, to run once:
    pinMode(soilMoistureSensor_PIN_A0, INPUT);
    pinMode(LDRSensor_PIN_A5, INPUT);
    pinMode(BuzzerPin_PIN_D8, OUTPUT);
    pinMode(fanPin_PIN_D9, OUTPUT);
    lcd.init();
    lcd.backlight();
    dht.begin();
}

void loop()
{
    // put your main code here, to run repeatedly:
    readDHTandPrintLCD();
    readSoilMoisturePrintLCD();
    readLDRsensorPrintOnLCD();
    turnOnFan();
}

void updateInputs()
{
    soilMoistureSensor_PIN_A0_rawData = analogRead(soilMoistureSensor_PIN_A0);
    LDRSensor_PIN_A5_rawData = analogRead(LDRSensor_PIN_A5);
}

void updateOutputs()
{
    digitalWrite(BuzzerPin_PIN_D8, BuzzerPin_PIN_D8_rawData);
    digitalWrite(fanPin_PIN_D9, fanPin_PIN_D9_rawData);
}

void readDHTandPrintLCD()
{
    /***** REQUIREMENT 1 *****/
    /* use library "DHT.h" and "LiquidCrystal_I2C.h" */

    /***** REQUIREMENT 2 *****/
    /* DHT Type is DHT11 and is connected to pin 2 */

    /***** REQUIREMENT 3 *****/
    /* wait 4 seconds before to exit from function */

    /***** REQUIREMENT 4 *****/
    /* read average of humidity and temperature and print */
    /* on LCD. Print temperature on first row in degree */
    /* Celsius and humidity on second row with */
    /* percentage. */

    float h = dht.readHumidity();
    float t = dht.readTemperature();

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Temp: ");
    lcd.print(t);
    lcd.print("C");
    lcd.setCursor(0, 1);
    lcd.print("Humidity: ");
    lcd.print(h);
    lcd.print("%");

    delay(4000);
}

void readSoilMoisturePrintLCD()
{
    /***** REQUIREMENT 1 *****/
    /* read soil Moisture from analog sensor and convert */
    /* it into percentage from 0 to 100%. */

    /***** REQUIREMENT 2 *****/
    /* print on LCD in first row the percentage. */

    /***** REQUIREMENT 3 *****/
    /* if percentage is lower than 80%, so print on LCD */
    /* in second row the sentence "Need water" otherwise */
    /* "No Water Needed". */

    /***** REQUIREMENT 4 *****/
    /* if percentage is lower than 80%, so turn on the */
    /* buzzer with value to HIGH otherwise turn off the */
    /* buzzer with value to LOW. */

    /***** REQUIREMENT 5 *****/
    /* wait 4 seconds before to exit from function */

    soilMoistureSensor_PIN_A0_rawData = analogRead(soilMoistureSensor_PIN_A0);
    soilMoistureSensor_PIN_A0_phyData = map(soilMoistureSensor_PIN_A0_rawData, 0, 1023, 0, 100);

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Soil Moisture: ");
    lcd.print(soilMoistureSensor_PIN_A0_phyData);
    lcd.print("%");

    if (soilMoistureSensor_PIN_A0_phyData < 80)
    {
        lcd.setCursor(0, 1);
        lcd.print("Need water");
        BuzzerPin_PIN_D8_rawData = HIGH;
    }
    else
    {
        lcd.setCursor(0, 1);
        lcd.print("No Water Needed");
        BuzzerPin_PIN_D8_rawData = LOW;
    }

    delay(4000);
}

void readLDRsensorPrintOnLCD()
{
    /***** REQUIREMENT 1 *****/
    /* read lux value from LDR sensor and convert from */
    /* analog value to lux multiplying by 500. Then print */
    /* on LCD in first row the lux value. */

    /***** REQUIREMENT 2 *****/
    /* wait 4 seconds before to exit from function */

    LDRSensor_PIN_A5_rawData = analogRead(LDRSensor_PIN_A5);
    float lux = LDRSensor_PIN_A5_rawData * 500.0 / 1023.0;

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("LDR Sensor: ");
    lcd.print(lux);
    lcd.print(" lux");

    delay(4000);
}

void turnOnFan()
{
    /***** REQUIREMENT 1 *****/
    /* turn On Fan with fanPin to HIGH if temperature */
    /* value is above 30 degree celsius. Turn OFF Fan */
    /* with fanpin to LOW if temperature value is lower */
    /* than 30 degree celsius. */

    /***** REQUIREMENT 2 *****/
    /* Use histeresis to manage the control of activation */
    /* of fan depending by temperature value. */

    float t = dht.readTemperature();

    if (t > 32)
    {
        fanPin_PIN_D9_rawData = HIGH;
    }
    else if (t < 28)
    {
        fanPin_PIN_D9_rawData = LOW;
    }

    delay(1000);
}