Halloween 2019 – Erfolge und Rückschläge beim Elektronik-Basteln (Seite 3)

#!/usr/bin/env python
# coding=utf-8
from __future__ import print_function
# Import Pixtend class
from pixtendlib import Pixtend
import time
import sys
import threading
import os, platform
p = Pixtend()
# Open SPI bus for communication
try:
  p.open()
except IOError as io_err:
  # Print error text and delete PiXtend instance
  print("Error opening the SPI bus! Error is: ", io_err)
  p.close()
  p = None
def thread_sound():
  os.system("play gost.wav")
def thread_animation():
  os.system("sudo python ws.py")
# -----------------------------------------------------
# Main Program
# -----------------------------------------------------
if p is not None:
  print("Running Main Program - Hit Ctrl + C to exit")
  # Set some variables needed in the main loop
  is_config = False
  switch = True
  pressed = False
  while True:
    try:
      # Using Auto Mode for optimal SPI bus usage
      if p.auto_mode() == 0:
        if not is_config:
          is_config = True
          # Space for setup
        print (p.digital_input0,":",p.digital_input1)
        if p.digital_input2 == p.ON and pressed==False:
          pressed=True;
          x = threading.Thread(target=thread_sound)
          x.start()
          y = threading.Thread(target=thread_animation)
          y.start()
          if switch: p.digital_output0 = p.ON
          else : p.digital_output1 = p.ON
          switch=not(switch)
        if p.digital_output0 == p.ON and di0_old == 0 and  p.digital_input0 == p.ON:
          p.digital_output0 = p.OFF
          pressed=False
        if p.digital_output1 == p.ON and di1_old == 0 and  p.digital_input1 == p.ON:
          p.digital_output1 = p.OFF
          pressed=False
        di0_old = p.digital_input0
        di1_old = p.digital_input1
      else:
        print("Auto Mode - Communication is not yet up...Please wait...")
      # Wait at minimum 0.1sec or 100ms before getting new values
      time.sleep(0.1)
    except KeyboardInterrupt:
      # Keyboard interrupt caught, Ctrl + C, now clean up and leave program
      p.close()
      p = None
      break
else:
  # If there was an error when opening the SPI bus interface, leave the program.
  print("")
  print("There was a problem with the PiXtend communication. Quitting.")
  print("")