from picozero import RGBLED, Button, DistanceSensor
from time import sleep
from machine import Pin, PWM

button = Button(7)
ds = DistanceSensor(echo=2, trigger=3, max_distance = 400)
buzzer = PWM(Pin(15))
buzzer.freq(500)

print("Ready")
while True:
    if(button.is_pressed):
        while True:
            print(ds.distance) 
            dist = ds.distance
            print("Distance is: " + str(dist) + " meters")
            if(dist >= 0 and dist < 5):
                print("between 0 and 5")
                buzzer.duty_u16(1000)
            elif(dist >= 5 and dist < 10):
                print("between 5 and 10")
                buzzer.duty_u16(600)
            elif(dist >= 10 and dist < 20):
                buzzer.duty_u16(300)
            else:
                print("Distance is more than 20")
                buzzer.duty_u16(10)