from machine import Pin, ADC, I2C
import dht
import ssd1306
import time

# Inisialisasi I2C untuk OLED
i2c = I2C(0, scl=Pin(22), sda=Pin(21))
oled = ssd1306.SSD1306_I2C(128, 64, i2c)

# Inisialisasi Sensor
dht22 = dht.DHT22(Pin(15))         # DHT22 di GPIO15
mq_analog = ADC(Pin(33))           # MQ AO dipindah ke GPIO33 ✅
mq_digital = Pin(23, Pin.IN)       # MQ DO tetap di GPIO23

# Loop utama
while True:
    try:
        dht22.measure()
        suhu = dht22.temperature()
        lembab = dht22.humidity()
        gas_ao = mq_analog.read()
        gas_do = mq_digital.value()

        # OLED Display
        oled.fill(0)
        oled.text("Suhu: {:.1f}C".format(suhu), 0, 0)
        oled.text("Lembab: {:.1f}%".format(lembab), 0, 10)
        oled.text("Gas AO: {}".format(gas_ao), 0, 20)
        oled.text("Gas: {}".format("Bahaya" if gas_do == 0 else "Aman"), 0, 30)
        oled.show()

        # Print juga ke serial (opsional)
        print("Suhu: {:.1f} C".format(suhu))
        print("Lembab: {:.1f} %".format(lembab))
        print("Gas AO:", gas_ao)
        print("Gas DO:", "Terdeteksi!" if gas_do == 0 else "Aman")
        print("---------------")
        time.sleep(2)

    except Exception as e:
        print("Error:", e)
        time.sleep(2)