print('Start ESP32')
from hcsr04 import HCSR04
from machine import Pin, I2C, PWM
import time
import ssd1306

buz = PWM(Pin(4))

i2c = I2C(0, scl=Pin(21), sda=Pin(22))

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

ss = HCSR04(trigger_pin=12, echo_pin=14, echo_timeout_us=1000000)

def sound_buz(frequency, duration_ms):
    buz.freq(frequency)
    buz.duty(512)
    time.sleep(duration_ms / 1000)  # Convert ms to seconds
    buz.duty(0)

while True: