[Tutor] Help needed
tbrodle at hotmail.com
Thu Feb 4 18:26:26 EST 2016
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.
Gpio setmode (BCM)
led_pin = 18
GPIO setup(led_pin, GPIO)
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:.
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.
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