KY-038 sensor using MicroPython - https://techatronic.com/sound-sensor-pi-pico/

ky038-main.py

from machine import Pin
from time import sleep  

vu=Pin(15,Pin.OUT)  
di=Pin(16,Pin.IN)  

while True:  
  try:  
    if di.value()== True:  
      vu.value(True)
      sleep(0.5)
    else:  
      vu.value(False)  
  except KeyboardInterrupt:  
    break  

if you buy one of these, you don't need the LED unless you're testing outputs like I am here. You could literally just provide PWR and GND to the chip, and LED2 on the board indicates whether sound is currently being detected on the potentiometer setting (LED1 is just PWR indicator).