Raspberry Pi Forums

Posted: **Wed Jul 06, 2016 9:47 pm**

import RPi.GPIO as GPIO            # import RPi.GPIO module  
from time import sleep             # lets us have a delay  
GPIO.setmode(GPIO.BCM)             # choose BCM or BOARD  
GPIO.setup(14, GPIO.OUT)           # set GPIO24 as an output     
try:  
    while True:
        GPIO.input(14)          # set GPIO24 to 1/GPIO.HIGH/True  
        sleep(0.5)                  # wait half a second
        GPIO.output(14, 1)
    if GPIO.input(14):
        GPIO.output(14, 0)
except KeyboardInterrupt:          # trap a CTRL+C keyboard interrupt  
    GPIO.cleanup()

Hello I try to make smart room and turn on/off lights etc. via www using shh to execute python script on raspberry

but after i run program above, command cleanup turn switch off. How too end it without cleanup command ?
i'm begginer in raspberry and in pythone and try figure it out alone exit() quit() don't work maybe my whole idea is wrong ?

I have hope someone of You can help me and tell me if the idea of buttons on www are good ? maybe some article anything that can help me are welcome.

Posted: **Fri Jul 08, 2016 5:42 am**

Apart from switching off when the user presses Ctrl+C, does that code run as you expect it to?

To me it looks as though that code would make the light flash for 1/2 second repeatedly until the user triggers the KeyboardInterrupt. I'm not sure if your first implementation of the GPIO.input() command is actually doing anything, see my comment below -

Code: Select all

import RPi.GPIO as GPIO            # import RPi.GPIO module  
from time import sleep             # lets us have a delay  
GPIO.setmode(GPIO.BCM)             # choose BCM or BOARD  
GPIO.setup(14, GPIO.OUT)           # set GPIO14 as an output     
try:  
    while True:
        GPIO.input(14)          # This line looks unnecessary, what does it do? 
        sleep(0.5)                  # wait half a second
        GPIO.output(14, 1)  #  set GPIO14 to 1/GPIO.HIGH/True  
    if GPIO.input(14):         # If GPIO14 is TRUE/HIGH
        GPIO.output(14, 0)  # Set GPIO to FALSE/LOW
except KeyboardInterrupt:          # trap a CTRL+C keyboard interrupt  
    GPIO.cleanup()

This instructable might help get you on the right track....

Raspberry Pi Forums

triger script for relay in python (without cleanup)

triger script for relay in python (without cleanup)

Re: triger script for relay in python (without cleanup)