LED(pin, *, active_high=True, initial_value=False, pin_factory=None)
Blink.py is a while loop to blink the LED every one second.
Five methods of blinking an LED. I placed a Red LED on GPIO 24 and Blue LED on GPIO 18. I could have done the same connection through the single supply logic level converter. It could have been 5V for the LED instead of 3.3V.