1  # SPDX-FileCopyrightText: 2019 Limor Fried for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  """
 6  This example will access the twitter follow button API, grab a number like
 7  the number of followers... and display it on a screen!
 8  if you can find something that spits out JSON data, we can display it
 9  """
10  import time
11  import board
12  from adafruit_pyportal import PyPortal
13  
14  # Get wifi details and more from a secrets.py file
15  try:
16      from secrets import secrets
17  except ImportError:
18      print("WiFi secrets are kept in secrets.py, please add them there!")
19      raise
20  
21  # Change this to your zip code, not all locations have AQI data. Check
22  # https://airnow.gov/ to see if there's data available!
23  LOCATION = "90210"
24  
25  # Set up where we'll be fetching data from
26  DATA_SOURCE = "http://www.airnowapi.org/aq/forecast/zipCode/?format=application/json"
27  # You'll need to get a token from airnow.gov, looks like '4d36e978-e325-11cec1-08002be10318'
28  DATA_SOURCE += "&zipCode="+LOCATION+"&API_KEY="+secrets['airnow_token']
29  DATA_LOCATION = [1, "AQI"]
30  
31  # the current working directory (where this file is)
32  cwd = ("/"+__file__).rsplit('/', 1)[0]
33  # Initialize the pyportal object and let us know what data to fetch and where
34  # to display it
35  pyportal = PyPortal(url=DATA_SOURCE,
36                      json_path=DATA_LOCATION,
37                      status_neopixel=board.NEOPIXEL,
38                      default_bg=0x000000,
39                      text_font=cwd+"/fonts/Helvetica-Bold-100.bdf",
40                      text_position=(90, 100),
41                      text_color=0x000000,
42                      caption_text="Air Quality Index for "+LOCATION,
43                      caption_font=cwd+"/fonts/HelveticaNeue-24.bdf",
44                      caption_position=(15, 220),
45                      caption_color=0x000000,)
46  
47  while True:
48      try:
49          value = pyportal.fetch()
50          print("Response is", value)
51          if 0 <= value <= 50:
52              pyportal.set_background(0x66bb6a)  # good
53          if 51 <= value <= 100:
54              pyportal.set_background(0xffeb3b)  # moderate
55          if 101 <= value <= 150:
56              pyportal.set_background(0xf39c12)  # sensitive
57          if 151 <= value <= 200:
58              pyportal.set_background(0xff5722)  # unhealthy
59          if 201 <= value <= 300:
60              pyportal.set_background(0x8e24aa)  # very unhealthy
61          if 301 <= value <= 500:
62              pyportal.set_background(0xb71c1c ) # hazardous
63  
64      except RuntimeError as e:
65          print("Some error occured, retrying! -", e)
66  
67      time.sleep(10*60)  # wait 10 minutes before getting again