ringd

   1 #!/usr/bin/python3
   2 import time, socket, atexit
   3 import RPi.GPIO as GPIO
   4
   5 tuerSock = "/run/tuer.sock"
   6
   7 ringPin = 18
   8
   9 GPIO.setmode(GPIO.BOARD)
  10 GPIO.setup(ringPin, GPIO.IN)
  11 atexit.register(GPIO.cleanup);
  12
  13 lastEvent = 0
  14
  15
  16 while True:
  17         GPIO.wait_for_edge(ringPin, GPIO.BOTH)
  18         # measure time since event
  19         now = time.time()
  20         timePassed = now-lastEvent
  21         print("Time between events %f" % timePassed)
  22         # remember, remember
  23         lastEvent = now
  24         # action to be taken?
  25         if timePassed >= 1.5 and timePassed <= 3:
  26                 print("Opening door")
  27                 # talk with tuerd
  28                 s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
  29                 s.connect(tuerSock)
  30                 s.send(b'buzz')
  31                 data = s.recv(4)
  32                 s.close()
  33                 print("...done")
  34                 if data != b'1':
  35                         print("Received unexpected answer %s" % str(data))
  36
  37