#include "DHT.h"
#include <Wire.h>

#define DHTPIN 13 // D4
#define DHTTYPE DHT22
#define ledBlue 27 // D6
#define ledGreen 14 // D7
#define ledRed 12 // D8
float minimalSuhu = 20;
float maksimalSuhu = 30;
String keterangan;
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(ledBlue, OUTPUT);
  pinMode(ledGreen, OUTPUT);
  pinMode(ledRed, OUTPUT);
  Serial.println("Sensor Suhu Aktif");
  delay(2000);
}

void loop() {
  float kelembapan = dht.readHumidity();
  float suhu = dht.readTemperature();
  if (isnan(suhu) || isnan(kelembapan)) {
    digitalWrite(ledBlue, HIGH);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledRed, LOW);
    delay(600);
    digitalWrite(ledBlue, LOW);
    digitalWrite(ledGreen, HIGH);
    digitalWrite(ledRed, LOW);
    delay(600);
    digitalWrite(ledBlue, LOW);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledRed, HIGH);
    delay(600);
  } else {
    if (suhu < minimalSuhu) {
      keterangan = "Terlalu Dingin";
      digitalWrite(ledBlue, HIGH);
      digitalWrite(ledGreen, LOW);
      digitalWrite(ledRed, LOW);
    } 
    else if (suhu >= minimalSuhu && suhu <= maksimalSuhu) {
      keterangan = "Suhu ideal";
      digitalWrite(ledBlue, LOW);
      digitalWrite(ledGreen, HIGH);
      digitalWrite(ledRed, LOW);
    } 
    else if (suhu > maksimalSuhu) {
      keterangan = "Terlalu Panas";
      digitalWrite(ledBlue, LOW);
      digitalWrite(ledGreen, LOW);
      digitalWrite(ledRed, HIGH);
    }
    delay(200);
  }
}