# https://www.instructables.com/id/Arduino-Python-Communication-via-USB/
# in rc.local:
#   su tilman -c 'python3 /media/hd/admin/doorbell/doorbell.py >> /media/hd/admin/doorbell/doorbell.log 2>&1 &'

import serial
import urllib.request
import logging
import time

logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s - %(message)s')
logging.info('Initializing')


arduino = serial.Serial('/dev/ttyUSB0', 9600, timeout=.1)

while True:
    data = arduino.readline()[:-2] #the last bit gets rid of the new-line chars
    if data:
        data = data.decode('utf8')
        if (data == 'RING'):
            try:
                response = urllib.request.urlopen('http://192.168.178.51/bell/on', timeout=5).read().decode('utf-8')
            except Exception:
                logging.error("Could not ring doorbell")
#                logging.exception("Could not ring doorbell")
                time.sleep(300)
            else:
                logging.info(data)