import RPi.GPIO as GPIO
import os, subprocess, time
os.environ['DISPLAY'] = ":0"

displayison = False
last_refresh = time.time()
last_detected = time.time()
GPIO.setwarnings(False)
print('Pi Model is %s' % GPIO.RPI_INFO['P1_REVISION'])
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)
while True:
  if GPIO.input(17):
    last_detected = time.time()
    if not displayison:
      print('PIR active')
      displayison = True
  elif displayison:
    print('Quiet')
    displayison = False
    time.sleep(1)