from machine import Pin
import time
button1=Pin(4,Pin.IN,Pin.PULL_UP)
button2=Pin(5,Pin.IN,Pin.PULL_UP)
while 1:
  print("========================")
  b1=button1.value()
  b2=button2.value()
  print("button1",b1)
  print("button2",b2) 
  time.sleep(0.5)