#include "DHTesp.h"
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define LED_merah 2
#define LED_kuning 5
#define LED_biru 4
#define DHT_PIN 15
#define buzzer 18
DHTesp dhtSensor;
Adafruit_SSD1306 display(128, 64, &Wire, -1);
void setup() {
pinMode(LED_merah, OUTPUT);
pinMode(LED_kuning, OUTPUT);
pinMode(LED_biru, OUTPUT);
pinMode(buzzer, OUTPUT);
Serial.begin(9600);
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.clearDisplay();
display.setTextColor(1);
display.setTextSize(1);
display.display();
}
void loop() {
delay(2000);
display.clearDisplay();
TempAndHumidity data = dhtSensor.getTempAndHumidity();
float t = data.temperature;
float h = data.humidity;
Serial.println("Temp: " + String(t, 2) + "°C");
Serial.println("Humidity: " + String(h, 1) + "%");
Serial.println("---");
display.setCursor(20,0);
display.print("Suhu: ");
display.print(data.temperature);
display.print(" C");
if(t>35){
digitalWrite(LED_merah, HIGH);
digitalWrite(LED_kuning, LOW);
digitalWrite(LED_biru, LOW);
display.setCursor(0, 20);
display.print("Suhu Terlalu Panas");
tone(buzzer, 2000, 500);
noTone(buzzer);
delay(1000);
tone(buzzer, 2000, 500);
}
else if(t>29){
digitalWrite(LED_kuning, HIGH);
digitalWrite(LED_merah, LOW);
digitalWrite(LED_biru, LOW);
display.setCursor(0, 20);
display.print("Suhu Normal");
}
else{
digitalWrite(LED_kuning, LOW);
digitalWrite(LED_merah, LOW);
digitalWrite(LED_biru, HIGH);
display.setCursor(0, 20);
display.print("Suhu Terlalu Dingin");
}
display.display();
}