from machine import Pin , PWM 
from time import sleep , ticks_ms


speaker_pin = 22 

speaker = PWM(Pin(22))

def playtone(freq):
    speaker.duty_u16(32767) # turn the PWM duty to 50%
    speaker.freq(freq)

pin1 = Pin(5 , Pin.IN , Pin.PULL_DOWN)
pin2 = Pin(6 , Pin.IN , Pin.PULL_DOWN)
pin3 = Pin(7 , Pin.IN , Pin.PULL_DOWN)
pin4 = Pin(8 , Pin.IN , Pin.PULL_DOWN)
pin5 = Pin(9 , Pin.IN , Pin.PULL_DOWN)
pin6 = Pin(10 , Pin.IN , Pin.PULL_DOWN)
pin7 = Pin(11 , Pin.IN , Pin.PULL_DOWN)
pin8 = Pin(12 , Pin.IN , Pin.PULL_DOWN)

while True :
    if pin1.value() == 1 :
        playtone(220)
    elif pin2.value() == 1 :
        playtone(247)
    elif pin3.value() == 1 :
        playtone(262)
    elif pin4.value() == 1 :
        playtone(294)
    elif pin5.value() == 1 :
        playtone(330)
    elif pin6.value() == 1 :
        playtone(349)
    elif pin7.value() == 1 :
        playtone(392)
    elif pin8.value() == 1 :
        playtone(440)
    else :
        speaker.duty_u16(0)