from machine import Pin
from utime import sleep
led = Pin(2, Pin.OUT)
try:
f=int(input("enter an integer between 1 and 24 \t"))
if(1<=f<=24):
while True:
led.on()
sleep(1/(2*f))
led.off()
sleep(1/(2*f))
else:
print("The number you entered is out of range")
except ValueError:
print("Invalid input. Please enter an integer")