import time
# Set the GPIO mode to BCM and disable warnings
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
# Define pins
led = 16
GPIO.setup(led,GPIO.OUT)
# Make sure LED is off
GPIO.output(led,False)
# Begin Loop
while True:
 # Turn LED on
 GPIO.output(led,True)
 # Wait 1 second
 time.sleep(1)
 # Turn LED off
 GPIO.output(led,False)
 # Wait 1 second
 time.sleep(1)