from machine import I2C, Pin, PWM
from time import sleep
import i2c_lcd

#Inisialisasi LCD I2C
i2c = I2C(0, sda=Pin(21), scl=Pin(22), freq=400000)
addr = i2c.scan()[0] if i2c.scan() else 0x27
lcd = i2c_lcd.I2cLcd(i2c, addr, 2, 16)

#Inisialisasi Buzzer
buzzer = PWM(Pin(18))
buzzer.duty(512)

# Nada (Hz)
notes = {
    'C': 261,
    'D': 294,
    'E': 329,
    'F': 349,
    'G': 392,
    'A': 440,
    'B': 494,
    'c': 523,   # C tinggi
    ' ': 0
}

# Lirik per baris
lines = [
    "Twinkle twinkle little star",
    "How I wonder what you are",
    "Up above the world so high",
    "Like a diamond in the sky",
    "Twinkle twinkle little star",
    "How I wonder what you are"
]

# Nada per baris
melody_lines = [
    ['C','C','G','G','A','A','G'],
    ['F','F','E','E','D','D','C'],
    ['G','G','F','F','E','E','D'],
    ['G','G','F','F','E','E','D'],
    ['C','C','G','G','A','A','G'],
    ['F','F','E','E','D','D','C']
]

# Beats per baris
beats_lines = [
    [4,4,4,4,4,4,2],
    [4,4,4,4,4,4,2],
    [4,4,4,4,4,4,2],
    [4,4,4,4,4,4,2],
    [4,4,4,4,4,4,2],
    [4,4,4,4,4,4,2]
]

def play_bar(line, melody, beats):
    lcd.clear()
    lcd.putstr(line)   # tampilkan baris penuh lirik
    for i, note in enumerate(melody):
        freq = notes.get(note, 0)
        dur = beats[i]
        if freq > 0:
            buzzer.freq(freq)
            buzzer.duty(512)
        else:
            buzzer.duty(0)
        sleep(0.4 * (4/dur))
        buzzer.duty(0)
        sleep(0.05)  # jeda antar nada
    sleep(1)  # jeda antar baris lirik

# Main program
while True:
    for i in range(len(lines)):
        play_bar(lines[i], melody_lines[i], beats_lines[i])
    lcd.clear()
    lcd.putstr("Selesai :)")
    sleep(3)