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

# Inisialisasi potensiometer pada GPIO 26 (ADC0)
pot = ADC(26)

# Inisialisasi motor servo pada GPIO 15 (PWM)
servo = PWM(Pin(15))
servo.freq(50)  # Frekuensi PWM untuk servo

# Inisialisasi sensor DHT22 pada GPIO 16
dht_sensor = dht.DHT22(Pin(16))

# Inisialisasi buzzer sebagai PWM pada GPIO 14
buzzer = PWM(Pin(14))
buzzer.duty_u16(0)  # Tidak ada suara saat awal

# Fungsi mapping nilai
def map_value(value, in_min, in_max, out_min, out_max):
    return int((value - in_min) * (out_max - out_min) / (in_max - in_min) + out_min)

# Fungsi untuk membunyikan buzzer dengan nada tertentu
def play_buzzer_note(frequency, duration_ms):
    buzzer.freq(frequency)
    buzzer.duty_u16(32768)  # Volume setengah
    time.sleep_ms(duration_ms)
    buzzer.duty_u16(0)
    time.sleep_ms(50)  # Jeda antar nada

# Fungsi melodi untuk suhu tinggi
def play_high_temp_melody():
    play_buzzer_note(880, 200)   # A5
    play_buzzer_note(988, 200)   # B5
    play_buzzer_note(1047, 200)  # C6

# Fungsi melodi untuk kelembapan tinggi
def play_high_humidity_melody():
    play_buzzer_note(659, 200)   # E5
    play_buzzer_note(698, 200)   # F5
    play_buzzer_note(784, 200)   # G5

# Fungsi melodi kombinasi suhu dan kelembapan tinggi
def play_combined_alert_melody():
    play_buzzer_note(1047, 200)  # C6
    play_buzzer_note(1175, 200)  # D6
    play_buzzer_note(1319, 200)  # E6

# Loop utama
while True:
    # Baca potensiometer
    pot_value = pot.read_u16()
    servo_angle = map_value(pot_value, 0, 65535, 0, 180)
    servo_duty = map_value(servo_angle, 0, 180, 1638, 8192)
    servo.duty_u16(servo_duty)

    # Baca suhu dan kelembapan dari DHT22
    try:
        dht_sensor.measure()
        temperature = dht_sensor.temperature()
        humidity = dht_sensor.humidity()

        print(f"Suhu: {temperature}°C | Kelembapan: {humidity:.1f}%")

        # Cek kondisi dan mainkan melodi sesuai kondisi
        if temperature < 35 and humidity > 50:
            print("🔥💧 Buzzer ON: Suhu & Kelembapan tinggi!")
            play_combined_alert_melody()
        elif temperature < 35:
            print("🔥 Buzzer ON: Suhu tinggi!")
            play_high_temp_melody()
        elif humidity > 50:
            print("💧 Buzzer ON: Kelembapan tinggi!")
            play_high_humidity_melody()
        else:
            buzzer.duty_u16(0)  # Matikan suara jika normal

    except OSError:
        print("⚠️ Gagal membaca sensor DHT22.")

    time.sleep(0.5)