from machine import Pin,ADC
import time
Vr=ADC(Pin(26))
led1=Pin(4,Pin.OUT)  
led2=Pin(5,Pin.OUT)
led3=Pin(18,Pin.OUT)
led4=Pin(19,Pin.OUT)
led5=Pin(21,Pin.OUT)
button = Pin(32,Pin.IN)
LED=[led1,led2,led3,led4,led5]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
Vr.atten(ADC.ATTN_11DB)
while True:
    x=Vr.read()
    if button.value() == 0:
        for i in LED:
            i.on()
            time.sleep_ms(x)
            i.off()
        while button.value == 0:
            time.sleep(0.1)