from machine import Pin
from time import sleep

print("Hello")

#rows = [28]
#columns = [19,20,21]

#set up row as output
#machine.Pin(rows[0],machine.Pin.OUT)

#set up colunns as pulldown inputs
#machine.Pin(columns[0],machine.Pin.In,machine.Pin.PULL_DOWN)
#machine.Pin(columns[1],machine.Pin.In,machine.Pin.PULL_DOWN)
#machine.Pin(columns[2],machine.Pin.In,machine.Pin.PULL_DOWN)

#while True:
#    print("Running")
#    machine.Pin(rows[0]).value(1)
 #   print(machine.Pin(rows[0].value())
 #   time.sleep(2)