pin_rs=37,
pin_e=35,
pins_data=[33, 31, 29, 23])
GPIO.setup(11, GPIO.IN) # MQ-9 Dout
GPIO.add_event_detect(11,
GPIO.FALLING,
callback=onMQ9FallingEdge,
bouncetime=2000)
try:
blinkState = True
running = True
while running:
try:
lcd.write_string(('R' if blinkState else ' ') + ' ' + ip_addr())
except OSError:
lcd.clear()
lcd.write_string(('E' if blinkState else ' ') + ' No IP Address')
lcd.crlf()
lcd.write_string('MQ-9:' + ('Safe' if GPIO.input(11) else 'Warn'))
lcd.write_string(' FB:' + ('OK' if chat_thread.is_alive() else 'NO'))
blinkState = not blinkState
time.sleep(1)
lcd.clear()
except (KeyboardInterrupt, EOFError):
running = False
finally:
lcd.clear()
lcd.write_string('E ' + ip_addr() + '\n\rPy Not Running')
GPIO.cleanup()
