[라즈베리파이] 인체감지센서(HC-SR501) Display ON/OFF

1. 구성도

2. 코드

import RPi.GPIO as GPIO
import time

class display1:
	def on():
    	f = open("/sys/class/backlight/10-0045/bl_power",'r')
        file = f.read()
        f.close()
        
        list = file.splitlines()
        
        print(list)
        for line in list:
        	print(line)
            if line == '1':
            	g = open("/sys/class/backlight/10-0045/bl_power", 'r')
                new = g.write("0")
                g.close()
    def off():
    	f = open("/sys/class/backlight/10-0045/bl_power", 'r')
        file = f.read()
        f.close()
        
        list = file.splitlines()
        
        print(list)
        for line in list:
        	print(line)
            if line == '0':
            g = open("/sys/class/backlight/10-0045/bl_power", 'w+')
            new = g.write("1")
            g.close()

sensor = 17

GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(sensor, GPIO.IN)

try:
	while True:
    	if GPIO.input(sensor) == 1:
        	print("on")
            display1.on()
            #time.sleep(0.5)
        elif GPIO.input(sensor) == 0:
        	print("off")
            display1.off()
            time.sleep(0.5)
            
except KeyboardInterrupt:
	GPIO.cleanup()