//FOLLOW @ardubotx ON TIKTOK FOR MORE FREE EXPLAINED CODE + PROJECT TUTORIALS
//Install ArduinoIDE to download code onto the arduino
//Download the libraries that are in libraries.txt (lines 5 and 6)
//Parts: DHT11/DHT22, Potentiometer, LCD1602(NO I2C), 220Ohm Resistor, Arduino Uno, Battery Clip, Arduino Uno USB Cable, 9V Battery

#include <DHT.h>
#include <LiquidCrystal.h>

// DHT11 sensor setup
#define DHTPIN 2     // DHT11 data pin connected to digital pin 2
#define DHTTYPE DHT11   // Define the type of DHT sensor
DHT dht(DHTPIN, DHTTYPE);

// LCD setup
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);  // RS, E, D4, D5, D6, D7

void setup() {
  // Start serial communication for debugging purposes
  Serial.begin(9600);
  
  // Initialize the DHT sensor
  dht.begin();
  
  // Initialize the LCD and specify the dimensions
  lcd.begin(16, 2);
  lcd.setCursor(0, 0);
  lcd.print("follow @ardubotx");
  lcd.setCursor(0, 1);
  lcd.print("on tiktok");
  
  delay(2000); // Wait for 2 seconds to see the initialization message
}

void loop() {
  // Wait a few seconds between measurements
  delay(2000);

  // Read humidity and temperature from DHT11 sensor
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  // Check if any reads failed and exit early (to try again)
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("dm @ardubotx on tiktok for help");
    return;
  }

  // Print temperature and humidity to the LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print(" C");
  
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print(" %");

  // Print temperature and humidity to the Serial Monitor (debugging)
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C ");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");
}