So, I am trying to use the raspberry pi model 2b with Debian to control a LED light using a button. But, when I run the python script (made with python2 btw), it brings up no errors, but instead when the button is pressed, the light does not change. An image of how I wired my pi is below.
And the script that I used to control the LED is here.
#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
LedPin = 11
BtnPin = 12
Led_status = 1
def setup():
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LedPin, GPIO.OUT)
GPIO.setup(BtnPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.output(LedPin, GPIO.HIGH)
def swLed(ev=None):
global Led_status
Led_status = not Led_status
GPIO.output(LedPin, Led_status)
if Led_status == 1:
print 'led off...'
else:
print '...led on'
def loop():
GPIO.add_event_detect(BtnPin, GPIO.FALLING, callback=swLed, bouncetime=200)
while True:
time.sleep(1)
def destroy():
GPIO.output(LedPin, GPIO.HIGH)
GPIO.cleanup()
if __name__ == '__main__':
setup()
try:
loop()
except KeyboardInterrupt:
destroy()
The script did output all of the things that it was supposed to output, but the light did not change at all. Could it be because I have too much resistence (220 R). Any comments help. Thanks
