Script that can power a led with the raspberry pi, using GPIO_11 (physical 23) and GRND (physical 14) when CPU usage > 50%

led_cpu

#!/usr/bin/python

import psutil
import sys
import os

try:
	import RPi.GPIO as GPIO
except RuntimeError:
	print("ERROR : This program needs to be executed as root")
	sys.exit()

if os.geteuid() != 0:
	print("ERROR : This program needs to be executed as root")
	sys.exit()

GPIO.setmode(GPIO.BOARD)

cpu_usage = 0
print "Will now turn on GPIO_11 (23) when CPU usage > 50%"

while 1:
	cpu_usage = psutil.cpu_percent(1)
	if cpu_usage > 50:
		GPIO.setup(23, GPIO.OUT)
		GPIO.output(23, GPIO.HIGH)
	else:
		GPIO.setup(23, GPIO.OUT)
		GPIO.output(23, GPIO.LOW)