import machine                                             import time
import dht
from machine import Pin, ADC, PWM

# Inisialisasi pin
dht_sensor = dht.DHT22(Pin(15))      # DHT22 di pin 15
mq_sensor = ADC(Pin(34))             # MQ sensor di pin 34
(ADC)                                                      mq_sensor.atten(ADC.ATTN_11DB)       # Rentang penuh 0-3.3V                                                           relay = Pin(26, Pin.OUT)             # Relay di pin 26
servo = PWM(Pin(13), freq=50)        # Servo di pin 13
                                                           # Fungsi mengatur posisi servo (0-180 derajat)             def set_servo_angle(angle):
    duty = int((angle / 180 * 2 + 0.5) / 20 * 1023)
    servo.duty(duty)
                                                           # Loop utama                                               while True:                                                    try:
        # Baca suhu dan kelembapan
        dht_sensor.measure()                                       temp = dht_sensor.temperature()
        hum = dht_sensor.humidity()

        # Baca nilai gas dari sensor MQ
        gas_level = mq_sensor.read()                       
        print("Suhu:", temp, "°C | Kelembapan:", hum, "% |
Gas:", gas_level)

        # Logika kontrol
        if gas_level > 2000 or temp > 30:
            print("Kualitas udara buruk atau suhu tinggi, m
embuka jendela...")
            set_servo_angle(90)      # Buka jendela
            relay.value(1)          # Aktifkan relay
        else:
            print("Kondisi normal, menutup jendela...")
            set_servo_angle(0)       # Tutup jendela
            relay.value(0)           # Matikan relay

        time.sleep(2)

    except OSError as e:                                           print("Gagal membaca sensor:", e)
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