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

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

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

# Inisialisasi buzzer pada GPIO 14
buzzer = PWM(Pin(14))
buzzer.duty_u16(0)

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

# 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 memainkan nada buzzer
def play_buzzer_note(freq, duration_ms):
    buzzer.freq(freq)
    buzzer.duty_u16(32768)  # Volume sedang
    time.sleep_ms(duration_ms)
    buzzer.duty_u16(0)
    time.sleep_ms(50)

# Melodi jika suhu < 35°C
def melody_low_temp():
    play_buzzer_note(523, 200)   # C5
    play_buzzer_note(587, 200)   # D5
    play_buzzer_note(659, 200)   # E5

# Melodi jika kelembapan > 50%
def melody_high_humidity():
    play_buzzer_note(784, 200)   # G5
    play_buzzer_note(880, 200)   # A5
    play_buzzer_note(988, 200)   # B5

# Melodi kombinasi (suhu < 35 dan kelembapan > 50)
def melody_combined():
    play_buzzer_note(1047, 200)  # C6
    play_buzzer_note(1175, 200)  # D6
    play_buzzer_note(1319, 200)  # E6

# Loop utama
while True:
    # Baca nilai potensiometer dan gerakkan servo
    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}% | sudut {servo_angle}")

        # Cek kondisi dan mainkan melodi yang sesuai
        if temperature < 35 and humidity > 50:
            print("🌡️ Suhu rendah & 💧 Kelembapan tinggi — Combined melody")
            melody_combined()
        elif temperature < 35:
            print("🌡️ Suhu rendah — Low temp melody")
            melody_low_temp()
        elif humidity > 50:
            print("💧 Kelembapan tinggi — High humidity melody")
            melody_high_humidity()
        else:
            buzzer.duty_u16(0)  # Matikan buzzer

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

    time.sleep(0.5)