new_contents: import os
  import time
  from datetime import datetime
  import RPi.GPIO as GPIO
  from blink2 import Blink
  
  
  pir_pin = 23
  log = True
  log_file = 'motion_log'
  speed = 2
  
  with open(log_file, 'w') as log:
      time_now = datetime.now().strftime('%d-%m-%Y | %H:%M:%S')
      log.write('Starting log... %s\n' % time_now)
  
  GPIO.setmode(GPIO.BCM)
  GPIO.setup(pir_pin, GPIO.IN)         # activate input
  
  i = 0
  while True:
      if GPIO.input(pir_pin):
          i += 1
          print("%i PIR ALARM!" % i)
          Blink(27, 3, 0.3)
          GPIO.setmode(GPIO.BCM)
          GPIO.setup(pir_pin, GPIO.IN)
          with open(log_file, 'a') as log:
              time_now = datetime.now().strftime('%d-%m-%Y | %H:%M:%S')
              log.write('%3i | %s\n' % (i, time_now))
          time.sleep(speed)
                                  
  
subject: Add motion sensor log script.