initial stable commit

.gitignore

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+venv/*

code.py

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+import time
+import board
+from adafruit_pyportal import PyPortal
+
+try:
+    from secrets import secrets
+except ImportError:
+    print("WiFi and API secrets are kept in secrets.py, please add them there!")
+    raise
+
+# Set up where we'll be fetching data from
+DATA_SOURCE = secrets['nightscout_url']
+BG_VALUE = [0, 'sgv']
+BG_DIRECTION = [0, 'direction']
+DATA_AGE = [0, 'date']
+
+# Alert Colors
+RED = 0xFF0000;     # CRIT HIGH, CRIT LOW
+ORANGE = 0xFFA500;  # WARN LOW 
+YELLOW = 0xFFFF00;  # WARN HIGH
+GREEN = 0x00FF00;   # BASE
+PURPLE = 0x800080;  # STALE DATA
+
+# Alert Levels
+CRIT_HIGH = 280
+WARN_HIGH = 180
+CRIT_LOW = 60
+WARN_LOW = 80
+
+def stale_data(timestamp):
+
+    # stale results is the age at which results are no longer considered valid.
+    # This is in minutes
+    stale_time = 6
+
+    stale = False
+
+    # Get the current timestamp in GMT
+    epoch_time = time.time()
+    print("Epoch GMT time:", epoch_time)
+
+    current_time_str = str(timestamp)
+
+    current_time_str = current_time_str[:-3] # nightscout sends a higher percision then is necessary and does not use dot notation
+    current_time_int = int(current_time_str)
+
+    # The number of minutes ago that the data was last checked
+    last_check = (epoch_time - current_time_int) /60
+    print("Data age: ", last_check)
+
+    if last_check > stale_time:
+        stale = True
+    else:
+        stale = False
+
+    return stale
+
+def get_bg_color(val, timestamp):
+    if stale_data(timestamp):
+        return PURPLE
+    else:    
+        if val > CRIT_HIGH:
+            return RED
+        elif val > WARN_HIGH:
+            return YELLOW
+        elif val < CRIT_LOW:
+            return RED
+        elif val < WARN_LOW:
+            return ORANGE
+        return GREEN
+
+def text_transform_bg(val):
+    return str(val) + ' mg/dl'
+
+def text_transform_direction(val):
+    if val == "Flat":
+        return "→"
+    if val == "SingleUp":
+        return "↑"
+    if val == "DoubleUp":
+        return "↑↑"
+    if val == "DoubleDown":
+        return "↓↓"
+    if val == "SingleDown":
+        return "↓"
+    if val == "FortyFiveDown":
+        return "→↓"
+    if val == "FortyFiveUp":
+        return "→↑"
+    return val
+
+# the current working directory (where this file is)
+cwd = ("/"+__file__).rsplit('/', 1)[0]
+pyportal = PyPortal(url=DATA_SOURCE,
+                    caption_text=secrets['human'],
+                    caption_position=(100, 80), # This is going to be subjective to the length of the name
+                    caption_font=cwd+"/fonts/Arial-Bold-24-Complete.bdf",
+                    caption_color=0x000000,
+                    json_path=(BG_VALUE, BG_DIRECTION, DATA_AGE),
+                    status_neopixel=board.NEOPIXEL,
+                    default_bg=0xFFFFFF,
+                    text_font=cwd+"/fonts/Arial-Bold-24-Complete.bdf",
+                    text_position=((90, 120),  # VALUE location
+                                   (140, 160)), # DIRECTION location
+                    text_color=(0x000000,  # sugar text color
+                                0x000000), # direction text color
+                    text_wrap=(35, # characters to wrap for sugar
+                               0), # no wrap for direction
+                    text_maxlen=(180, 30), # max text size for sugar & direction
+                    text_transform=(text_transform_bg,text_transform_direction),
+                   )
+
+# speed up projects with lots of text by preloading the font!
+pyportal.preload_font(b'mg/dl012345789');
+pyportal.preload_font((0x2191, 0x2192, 0x2193))
+
+while True:
+    try:
+        value = pyportal.fetch()
+        print("Getting time from internet!")
+        pyportal.get_local_time(location="Africa/Abidjan")
+        pyportal.set_background(get_bg_color(value[0], value[2]))
+        print("Response is", value)
+
+    except RuntimeError as e:
+        print("Some error occured, retrying! -", e)
+    time.sleep(180)
+