When I try to toggle the Raspi pin no 40 using the code it gives me message
RuntimeWarning : The channel is already in use, continuing anways and asks to disable warnings. Even after doing GPIO.setwarnings(False), the warning doesn't pop but the port does not toggle at all. I had tested the RPI.GPIO library quite a while ago their was no problem, in toggling the ports.
#! /usr/bin/python import array import os import time import RPi.GPIO as GPIO def main(): GPIO.setmode(GPIO.BCM) GPIO.setup(40,GPIO.OUT) time.sleep(1) while True: GPIO.output(40,GPIO.HIGH) time.sleep(5) GPIO.output(40,GPIO.LOW) time.sleep(5) if __name__=='__main__': try: main() except KeyboardInterrupt: spi.close() GPIO.cleanup() finally: GPIO.cleanup() 
