from machine import Pin, PWM
from utime import sleep

# Set up PIR sensor pin
pir_pin = Pin(26, Pin.IN)

# Set up LED pin
led_pin = Pin(27, Pin.OUT)

# Set up buzzer pin as PWM
buzzer = PWM(Pin(5))

tones = {
    "B0": 31, "C1": 33, "CS1": 35, "D1": 37, "DS1": 39, "E1": 41, "F1": 44, "FS1": 46, "G1": 49, "GS1": 52,
    "A1": 55, "AS1": 58, "B1": 62, "C2": 65, "CS2": 69, "D2": 73, "DS2": 78, "E2": 82, "F2": 87, "FS2": 93,
    "G2": 98, "GS2": 104, "A2": 110, "AS2": 117, "B2": 123, "C3": 131, "CS3": 139, "D3": 147, "DS3": 156,
    "E3": 165, "F3": 175, "FS3": 185, "G3": 196, "GS3": 208, "A3": 220, "AS3": 233, "B3": 247, "C4": 262,
    "CS4": 277, "D4": 294, "DS4": 311, "E4": 330, "F4": 349, "FS4": 370, "G4": 392, "GS4": 415, "A4": 440,
    "AS4": 466, "B4": 494, "C5": 523, "CS5": 554, "D5": 587, "DS5": 622, "E5": 659, "F5": 698, "FS5": 740,
    "G5": 784, "GS5": 831, "A5": 880, "AS5": 932, "B5": 988, "C6": 1047, "CS6": 1109, "D6": 1175, "DS6": 1245,
    "E6": 1319, "F6": 1397, "FS6": 1480, "G6": 1568, "GS6": 1661, "A6": 1760, "AS6": 1865, "B6": 1976, "C7": 2093,
    "CS7": 2217, "D7": 2349, "DS7": 2489, "E7": 2637, "F7": 2794, "FS7": 2960, "G7": 3136, "GS7": 3322, "A7": 3520,
    "AS7": 3729, "B7": 3951, "C8": 4186, "CS8": 4435, "D8": 4699, "DS8": 4978
}

alarm_song = ["E5", "G5", "A5", "P", "E5", "G5", "B5", "A5", "P", "E5", "G5", "A5", "P", "G5", "E5"]

def play_tone(frequency):
    buzzer.freq(frequency)
    buzzer.duty_u16(500)

def be_quiet():
    buzzer.duty_u16(0)

def play_alarm():
    for note in alarm_song:
        if note == "P":
            be_quiet()
        else:
            play_tone(tones[note])
        sleep(0.3)
    be_quiet()

# Continuously monitor PIR sensor and control LED
while True:
    if pir_pin.value() == 1:
        print("PIR value: 1    Status: Motion detected!")
        led_pin.on()
        play_alarm()
    else:
        print("PIR value: 0    Status: Waiting for movement...")
        led_pin.off()
    sleep(1)