from machine import Pin
from machine import PWM
import time
from random import randint

# Set our pin 2 to PWM
pwm = PWM(Pin(2))
btn1 = Pin(23, Pin.IN, Pin.PULL_UP)
btn2 = Pin(22, Pin.IN, Pin.PULL_UP)
led = Pin(15,Pin.OUT)

pwm.freq(1)

def switch_buzz(freq):
    if(freq == False):
        pwm.freq(1)
    else:
        pwm.freq(freq)

while(True):
    if(btn1.value() == 0):
        switch_buzz(440)
        led.value(0)    
    elif(btn2.value() == 0):
        switch_buzz(300)
        led.value(1)
    else:
        switch_buzz(False)