from machine import Pin, ADC
import time
adc= ADC(34)
led= Pin(2,Pin.OUT)
last_val= None
while True:
    val=adc.read()
    if val!=last_val:
        print(val)
        last_val= val
        time.sleep(1)
        if val < 3000:
            print("low Sound Detected")
        else:
            led.on()
            print("More Sound Detected")