I am very new to Python. I am just practicing code using a simple plug board.
The code is working as I want it to but the last message and the original
looping makes me have questions. Because the main code works I will just
abbreviate it.
import GPIO
import time
Gpio setmode (BCM)
led_pin = 18
GPIO setup(led_pin, GPIO)
try:
While true:
Turn LED on
sleep 5 seconds
Turn LED off
sleep .5 seconds # program was initially designed to keep LED
turning on and off and that worked.
# Coming from the world of Basic I
did/do not understand what made the program loop
# back to while True: line of code.
# I wanted the LED to turn on and
then off and stay off, so from some Python.org
# page I became aware of
quit(code=None) and inserted it before the line Print("Cleaning up")
quit(code=None) # I put this line in to stop the looping back
to While true:.
Print("Cleaning up")
GPIO.cleanup() # I was told to put this line in but I do not know
where it goes to do whatever.
#The code did turn the LED on once
and then it did stay off, but it gave me a message that
# the program is still running. I
did not think that programs actually did stop until the
# power was removed.
Thanks
Tom
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