Revise paste "Sensor Control" rev_02

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- Project: "Sensor Control"
	- Source Code NOT compiled for: Arduino Uno
	- Source Code created on: 2024-06-30 02:41:56

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* sensor DHT11 untuk suhu dan kelembapan, dan LED */
	/* RGB. Gunakan tombol tekan untuk beralih antara */
	/* menampilkan suhu dan kelembapan pada LCD. Kontrol */
	/* LED RGB berdasarkan ambang batas suhu. jika rendah */
	/* berwarna hijau dan jika tinggi warna merah */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <LiquidCrystal_I2C.h>  // https://github.com/marcoschwartz/LiquidCrystal_I2C
#include <DHT.h>  // https://github.com/adafruit/DHT-sensor-library

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs(void);
void displayTemperature(float temperature);
void displayHumidity(float humidity);
void controlLED(float temperature);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t PushButton_PIN_D2 = 2;
const uint8_t DHT22_DOUT_PIN_D5 = 5;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t led1_LEDRGB_Red_PIN_D3 = 3;
const uint8_t led1_LEDRGB_Green_PIN_D4 = 4;

/***** DEFINITION OF I2C PINS *****/
const uint8_t lcd_LCD1602I2C_I2C_PIN_SDA_A4 = A4;
const uint8_t lcd_LCD1602I2C_I2C_PIN_SCL_A5 = A5;
const uint8_t lcd_LCD1602I2C_I2C_SLAVE_ADDRESS = 0x27;  // Corrected to 0x27 based on example

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool led1_LEDRGB_Red_PIN_D3_rawData = 0;
bool led1_LEDRGB_Green_PIN_D4_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float led1_LEDRGB_Red_PIN_D3_phyData = 0.0;
float led1_LEDRGB_Green_PIN_D4_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
LiquidCrystal_I2C lcd(lcd_LCD1602I2C_I2C_SLAVE_ADDRESS, 16, 2);  // Initialize LCD with address and size

#define DHTTYPE DHT22  // Define the type of DHT sensor
DHT dht(DHT22_DOUT_PIN_D5, DHTTYPE);  // Initialize DHT sensor with pin and type

/***** GLOBAL VARIABLES *****/
bool displayTemperatureFlag = true;  // Flag to toggle between temperature and humidity display

void setup(void)
{
    // put your setup code here, to run once:

pinMode(PushButton_PIN_D2, INPUT_PULLUP);
    pinMode(DHT22_DOUT_PIN_D5, INPUT_PULLUP);

pinMode(led1_LEDRGB_Red_PIN_D3, OUTPUT);
    pinMode(led1_LEDRGB_Green_PIN_D4, OUTPUT);

lcd.init();  // Initialize the LCD
    lcd.backlight();  // Turn on the backlight

dht.begin();  // Initialize the DHT sensor

Serial.begin(9600);  // Initialize serial communication for debugging
}

void loop(void)
{
    // put your main code here, to run repeatedly:

updateOutputs(); // Refresh output data

delay(2000);  // Delay for 2 seconds

float h = dht.readHumidity();  // Read humidity
    float t = dht.readTemperature();  // Read temperature in Celsius

if (isnan(h) || isnan(t)) {
        Serial.println(F("Failed to read from DHT sensor!"));
        return;
    }

// Check if the push button is pressed
    if (digitalRead(PushButton_PIN_D2) == LOW) {
        displayTemperatureFlag = !displayTemperatureFlag;  // Toggle the display flag
        delay(200);  // Debounce delay
    }

// Display temperature or humidity based on the flag
    if (displayTemperatureFlag) {
        displayTemperature(t);
    } else {
        displayHumidity(h);
    }

// Control the RGB LED based on temperature
    controlLED(t);
}

void updateOutputs()
{
    digitalWrite(led1_LEDRGB_Red_PIN_D3, led1_LEDRGB_Red_PIN_D3_rawData);
    digitalWrite(led1_LEDRGB_Green_PIN_D4, led1_LEDRGB_Green_PIN_D4_rawData);
}

void displayTemperature(float temperature)
{
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Temperature:");
    lcd.setCursor(0, 1);
    lcd.print(temperature);
    lcd.print(" C");
}

void displayHumidity(float humidity)
{
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Humidity:");
    lcd.setCursor(0, 1);
    lcd.print(humidity);
    lcd.print(" %");
}

void controlLED(float temperature)
{
    if (temperature < 25.0) {
        // Temperature is low, turn on green LED
        led1_LEDRGB_Green_PIN_D4_rawData = HIGH;
        led1_LEDRGB_Red_PIN_D3_rawData = LOW;
    } else {
        // Temperature is high, turn on red LED
        led1_LEDRGB_Green_PIN_D4_rawData = LOW;
        led1_LEDRGB_Red_PIN_D3_rawData = HIGH;
    }
}