adding files for the pyportal mirror display

PyPortal_Mirror_Display/code.py

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+# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import sys
+import time
+import board
+from analogio import AnalogIn
+from adafruit_pyportal import PyPortal
+cwd = ("/"+__file__).rsplit('/', 1)[0] # the current working directory (where this file is)
+sys.path.append(cwd)
+import openweather_graphics  # pylint: disable=wrong-import-position
+
+# Get wifi details and more from a secrets.py file
+try:
+    from secrets import secrets
+except ImportError:
+    print("WiFi secrets are kept in secrets.py, please add them there!")
+    raise
+
+# Use cityname, country code where countrycode is ISO3166 format.
+# E.g. "New York, US" or "London, GB"
+LOCATION = "New York, US"
+
+# Set up where we'll be fetching data from
+DATA_SOURCE = "http://api.openweathermap.org/data/2.5/weather?q="+LOCATION
+DATA_SOURCE += "&appid="+secrets['openweather_token']
+# You'll need to get a token from openweather.org, looks like 'b6907d289e10d714a6e88b30761fae22'
+DATA_LOCATION = []
+
+
+# Initialize the pyportal object and let us know what data to fetch and where
+# to display it
+pyportal = PyPortal(url=DATA_SOURCE,
+                    json_path=DATA_LOCATION,
+                    status_neopixel=board.NEOPIXEL,
+                    default_bg=0x000000)
+
+display = board.DISPLAY
+#  rotate display for portrait orientation
+display.rotation = 270
+
+#  instantiate the openweather_graphics class
+gfx = openweather_graphics.OpenWeather_Graphics(pyportal.splash, am_pm=True, celsius=False)
+
+#  time keeping for refreshing screen icons and weather information
+localtile_refresh = None
+weather_refresh = None
+
+#  setup light sensor as an analog input
+analogin = AnalogIn(board.LIGHT)
+
+#  analog scaling helper
+def getVoltage(pin):
+    return (pin.value * 3.3) / 65536
+
+#  timer for updating onscreen clock
+clock = time.monotonic()
+#  timer for keeping backlight on
+light = time.monotonic()
+#  light sensor threshold value
+threshold = 0.085
+
+while True:
+    # only query the online time once per hour (and on first run)
+    if (not localtile_refresh) or (time.monotonic() - localtile_refresh) > 3600:
+        try:
+            print("Getting time from internet!")
+            pyportal.get_local_time()
+            localtile_refresh = time.monotonic()
+        except RuntimeError as e:
+            print("Some error occured, retrying! -", e)
+            continue
+    # only query the weather every 10 minutes (and on first run)
+    if (not weather_refresh) or (time.monotonic() - weather_refresh) > 600:
+        try:
+            value = pyportal.fetch()
+            print("Response is", value)
+            gfx.display_weather(value)
+            weather_refresh = time.monotonic()
+        except RuntimeError as e:
+            print("Some error occured, retrying! -", e)
+            continue
+    #  check light sensor
+    if getVoltage(analogin) < threshold:
+        #  if its blocked then turn on backlight
+        pyportal.set_backlight(1)
+        #  reset light timer
+        light = time.monotonic()
+    #  after 10 seconds, turn off the backlight
+    if (time.monotonic() - light) > 10:
+        pyportal.set_backlight(0)
+    #  every 30 seconds update time on screen
+    if (time.monotonic() - clock) > 30:
+        gfx.update_time()
+        clock = time.monotonic()