TKK_E32211537/Kode Program Arduino/fixxxxx.ino

#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <DHT.h>

#define DHTPIN D3         // Pin data DHT22 ESP1 (D4) ESP2 (D3)
#define DHTTYPE DHT22    // Tipe sensor DHT22
#define RELAY_LAMP D7    // Pin relay untuk lampu
#define RELAY_FAN  D6    // Pin relay untuk kipas
#define RELAY_ON 0
#define RELAY_OFF 1

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); // Inisialisasi LCD I2C dengan alamat 0x28 dan ukuran 16x2

// Konfigurasi WiFi
const char* ssid = "GalaxyA52";
const char* password = "12341234";
const char* server = "192.168.253.79";

unsigned long previousMillisRelay = 0;
unsigned long previousSendMillis = 0;
const long relayInterval = 2000;    // Interval 2 detik untuk relay
const long sendInterval = 1000;     // Interval 1 detik untuk pengiriman data

void setup() {
  Serial.begin(9600);
  Serial.println("DHT22 test!");

  dht.begin();
  lcd.init();
  lcd.backlight();

  pinMode(RELAY_LAMP, OUTPUT); // Atur pin relay lampu sebagai output
  pinMode(RELAY_FAN, OUTPUT);  // Atur pin relay kipas sebagai output
  digitalWrite(RELAY_LAMP, RELAY_OFF); // Matikan relay lampu
  digitalWrite(RELAY_FAN, RELAY_OFF);  // Matikan relay kipas

  WiFi.hostname("NodeMCU");
  WiFi.begin(ssid, password);

  // Cek koneksi WiFi
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  lcd.println("haloo");
  delay(2000);
  lcd.clear();

  // Tampilkan pesan "sayang" di LCD selama 1 detik
  lcd.setCursor(0, 0);
  lcd.print("haloo");
  delay(3000); // Tambahkan delay 1 detik untuk menampilkan "sayang"

  // Tampilkan pesan "" di LCD selama 1 detik
  lcd.print(" haloo");
  delay(3000); // 
  lcd.clear();
}

void loop() {
  unsigned long currentMillis = millis();
  
  float temp = dht.readTemperature();
  int hum = dht.readHumidity();

  if (isnan(temp) || isnan(hum)) {
    Serial.println("Gagal membaca sensor!");
    lcd.setCursor(0, 0);
    lcd.print("Error");
    return;
  }

  // Tampilkan di LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("KELEMBABAN: ");
  lcd.print(hum);
  lcd.println(" %");
  lcd.setCursor(0, 1);
  lcd.print("SUHU: ");
  lcd.print(temp);
  lcd.print((char)223); // Simbol derajat Celsius
  lcd.print("C");

  // Tampilkan di Serial Monitor
  Serial.print("Suhu: ");
  Serial.print(temp);
  Serial.print(" C, Kelembaban: ");
  Serial.print(hum);
  Serial.println(" %");

  // Kontrol relay berdasarkan suhu dan kelembaban
  if (currentMillis - previousMillisRelay >= relayInterval) {
    previousMillisRelay = currentMillis;
    
    if (temp > 32) {
      if (hum > 75) {
        digitalWrite(RELAY_FAN, RELAY_ON); // Hidupkan kipas
        digitalWrite(RELAY_LAMP, RELAY_ON); // Hidupkan lampu
        Serial.println("Kipas ON, Lampu ON (Suhu > 32, Kelembaban > 70)");
      } else {
        digitalWrite(RELAY_FAN, RELAY_ON); // Hidupkan kipas
        digitalWrite(RELAY_LAMP, RELAY_OFF); // Matikan lampu
        Serial.println("Kipas ON, Lampu OFF (Suhu > 32, Kelembaban <= 70)");
      }
    } else if (temp < 28) {
      if (hum < 70) {
        digitalWrite(RELAY_FAN, RELAY_ON); // Hidupkan kipas
        digitalWrite(RELAY_LAMP, RELAY_ON); // Hidupkan lampu
        Serial.println("Kipas ON, Lampu ON (Suhu < 28, Kelembaban < 70)");
      } else {
        digitalWrite(RELAY_FAN, RELAY_OFF); // Matikan kipas
        digitalWrite(RELAY_LAMP, RELAY_ON); // Hidupkan lampu
        Serial.println("Kipas OFF, Lampu ON (Suhu < 28, Kelembaban >= 70)");
      }
    } else {
      if (hum > 75) {
        digitalWrite(RELAY_FAN, RELAY_OFF); // Matikan kipas
        digitalWrite(RELAY_LAMP, RELAY_ON); // Hidupkan lampu
        Serial.println("Kipas OFF, Lampu ON (28 <= Suhu <= 32, Kelembaban > 70)");
      } else if (hum < 70) {
        digitalWrite(RELAY_FAN, RELAY_ON); // Hidupkan kipas
        digitalWrite(RELAY_LAMP, RELAY_OFF); // Matikan lampu
        Serial.println("Kipas ON, Lampu OFF (28 <= Suhu <= 32, Kelembaban < 70)");
      } else {
        digitalWrite(RELAY_FAN, RELAY_OFF); // Matikan kipas
        digitalWrite(RELAY_LAMP, RELAY_OFF); // Matikan lampu
        Serial.println("Kipas OFF, Lampu OFF (28 <= Suhu <= 32, 70 <= Kelembaban <= 70)");
      }
    }
  }

  // Kirim data setiap detik
  if (currentMillis - previousSendMillis >= sendInterval) {
    previousSendMillis = currentMillis;

    WiFiClient wClient;
    String url;
    HTTPClient http;
    url = "http://" + String(server) + "/web-ta/public/simpansatu/" + String(temp) + "/" + String(hum); 
    http.begin(wClient, url);
    int httpCode = http.GET();
    if (httpCode > 0) {
      Serial.println("Data terkirim ke server.");
    } else {
      Serial.println("Gagal mengirim data!");
    }
    http.end();
  }

  delay(1000); // Tambahkan delay 1 detik pada loop
}