#led on ,off using resistor and switch(Pull up) 
from machine import Pin
import time
led_pin = 2
switch_pin = 14
led = Pin(led_pin, Pin.OUT)
switch = Pin(switch_pin, Pin.IN)
while True:
    switch_state = switch.value()
    if (switch_state == True):
        led.on()
        time.sleep(0.1)
    else:
        led.off()