from machine import Pin, I2C, PWM
import ssd1306
import time

# Setup I2C OLED (GPIO 22=SCL, GPIO 21=SDA)
i2c = I2C(0, scl=Pin(22), sda=Pin(21))

# Inisialisasi OLED 128x64
oled = ssd1306.SSD1306_I2C(128, 64, i2c)

# Setup buzzer di GPIO 13
buzzer = PWM(Pin(13), freq=1000, duty=0)

# Setup tombol di GPIO 26 dengan pull-up internal
button = Pin(26, Pin.IN, Pin.PULL_UP)

# Nada untuk lagu Happy Birthday (frekuensi dalam Hz)
notes = {
    'C4': 262,
    'D4': 294,
    'E4': 330,
    'F4': 349,
    'G4': 392,
    'A4': 440,
    'B4': 494,
    'C5': 523
}

# Urutan nada Happy Birthday (note, durasi ms)
happy_birthday_melody = [
    ('C4', 400), ('C4', 400), ('D4', 800), ('C4', 800), ('F4', 800), ('E4', 1600),
    ('C4', 400), ('C4', 400), ('D4', 800), ('C4', 800), ('G4', 800), ('F4', 1600),
    ('C4', 400), ('C4', 400), ('C5', 800), ('E4', 800), ('F4', 800), ('E4', 800), ('D4', 1600),
    ('A4', 400), ('A4', 400), ('F4', 800), ('D4', 800), ('G4', 800), ('F4', 1600)
]

def play_tone(freq, duration_ms):
    buzzer.freq(freq)
    buzzer.duty(512)  # 50% duty cycle
    time.sleep_ms(duration_ms)
    buzzer.duty(0)

def play_happy_birthday():
    for note, duration in happy_birthday_melody:
        play_tone(notes[note], duration)
        time.sleep_ms(50)  # jeda antar nada

while True:
    oled.fill(0)
    if button.value() == 0:  # tombol ditekan (aktif LOW)
        oled.text("Happy Birthday!", 0, 0)