Merge pull request #1171 from makermelissa/master

Added EInk Bonnet Weather Station Code

Author: makermelissa

EInk_Bonnet_Weather_Station/meteocons.ttf

@@ -0,0 +1,60 @@
+"""
+This example queries the Open Weather Maps site API to find out the current
+weather for your location... and display it on a eInk Bonnet!
+"""
+
+import time
+import urllib.request
+import urllib.parse
+import digitalio
+import busio
+import board
+from adafruit_epd.epd import Adafruit_EPD
+from adafruit_epd.ssd1675 import Adafruit_SSD1675
+from weather_graphics import Weather_Graphics
+
+spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
+ecs = digitalio.DigitalInOut(board.CE0)
+dc = digitalio.DigitalInOut(board.D22)
+rst = digitalio.DigitalInOut(board.D27)
+busy = digitalio.DigitalInOut(board.D17)
+
+# You'll need to get a token from openweathermap.org, looks like:
+# 'b6907d289e10d714a6e88b30761fae22'
+OPEN_WEATHER_TOKEN = ""
+LOCATION = "Manhattan, US"
+DATA_SOURCE_URL = "http://api.openweathermap.org/data/2.5/weather"
+
+if len(OPEN_WEATHER_TOKEN) == 0:
+    raise RuntimeError(
+        "You need to set your token first. If you don't already have one, you can register for a free account at https://home.openweathermap.org/users/sign_up"
+    )
+
+# Set up where we'll be fetching data from
+params = {"q": LOCATION, "appid": OPEN_WEATHER_TOKEN}
+data_source = DATA_SOURCE_URL + "?" + urllib.parse.urlencode(params)
+
+# Initialize the Display
+display = Adafruit_SSD1675(
+    122, 250, spi, cs_pin=ecs, dc_pin=dc, sramcs_pin=None, rst_pin=rst, busy_pin=busy,
+)
+
+display.rotation = 3
+
+gfx = Weather_Graphics(display, am_pm=True, celsius=False)
+weather_refresh = None
+
+while True:
+    # only query the weather every 10 minutes (and on first run)
+    if (not weather_refresh) or (time.monotonic() - weather_refresh) > 600:
+        response = urllib.request.urlopen(data_source)
+        if response.getcode() == 200:
+            value = response.read()
+            print("Response is", value)
+            gfx.display_weather(value)
+            weather_refresh = time.monotonic()
+        else:
+            print("Unable to retrieve data at {}".format(url))
+
+    gfx.update_time()
+    time.sleep(300)  # wait 5 minutes before updating anything again

EInk_Bonnet_Weather_Station/weather.py

@@ -0,0 +1,157 @@
+from datetime import datetime
+import json
+from PIL import Image, ImageDraw, ImageFont
+from adafruit_epd.epd import Adafruit_EPD
+
+small_font = ImageFont.truetype(
+    "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 16
+)
+medium_font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
+large_font = ImageFont.truetype(
+    "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 24
+)
+icon_font = ImageFont.truetype("./meteocons.ttf", 48)
+
+# Map the OpenWeatherMap icon code to the appropriate font character
+# See http://www.alessioatzeni.com/meteocons/ for icons
+ICON_MAP = {
+    "01d": "B",
+    "01n": "C",
+    "02d": "H",
+    "02n": "I",
+    "03d": "N",
+    "03n": "N",
+    "04d": "Y",
+    "04n": "Y",
+    "09d": "Q",
+    "09n": "Q",
+    "10d": "R",
+    "10n": "R",
+    "11d": "Z",
+    "11n": "Z",
+    "13d": "W",
+    "13n": "W",
+    "50d": "J",
+    "50n": "K",
+}
+
+# RGB Colors
+WHITE = (255, 255, 255)
+BLACK = (0, 0, 0)
+
+
+class Weather_Graphics:
+    def __init__(self, display, *, am_pm=True, celsius=True):
+        self.am_pm = am_pm
+        self.celsius = celsius
+
+        self.small_font = small_font
+        self.medium_font = medium_font
+        self.large_font = large_font
+
+        self.display = display
+
+        self._weather_icon = None
+        self._city_name = None
+        self._main_text = None
+        self._temperature = None
+        self._description = None
+        self._time_text = None
+
+    def display_weather(self, weather):
+        weather = json.loads(weather)
+
+        # set the icon/background
+        self._weather_icon = ICON_MAP[weather["weather"][0]["icon"]]
+
+        city_name = weather["name"] + ", " + weather["sys"]["country"]
+        print(city_name)
+        self._city_name = city_name
+
+        main = weather["weather"][0]["main"]
+        print(main)
+        self._main_text = main
+
+        temperature = weather["main"]["temp"] - 273.15  # its...in kelvin
+        print(temperature)
+        if self.celsius:
+            self._temperature = "%d °C" % temperature
+        else:
+            self._temperature = "%d °F" % ((temperature * 9 / 5) + 32)
+
+        description = weather["weather"][0]["description"]
+        description = description[0].upper() + description[1:]
+        print(description)
+        self._description = description
+        # "thunderstorm with heavy drizzle"
+
+        self.update_time()
+
+    def update_time(self):
+        now = datetime.now()
+        self._time_text = now.strftime("%I:%M %p").lstrip("0").replace(" 0", " ")
+        self.update_display()
+
+    def update_display(self):
+        self.display.fill(Adafruit_EPD.WHITE)
+        image = Image.new("RGB", (self.display.width, self.display.height), color=WHITE)
+        draw = ImageDraw.Draw(image)
+
+        # Draw the Icon
+        (font_width, font_height) = icon_font.getsize(self._weather_icon)
+        draw.text(
+            (
+                self.display.width // 2 - font_width // 2,
+                self.display.height // 2 - font_height // 2 - 5,
+            ),
+            self._weather_icon,
+            font=icon_font,
+            fill=BLACK,
+        )
+
+        # Draw the city
+        draw.text(
+            (5, 5), self._city_name, font=self.medium_font, fill=BLACK,
+        )
+
+        # Draw the time
+        (font_width, font_height) = medium_font.getsize(self._time_text)
+        draw.text(
+            (5, font_height * 2 - 5),
+            self._time_text,
+            font=self.medium_font,
+            fill=BLACK,
+        )
+
+        # Draw the main text
+        (font_width, font_height) = large_font.getsize(self._main_text)
+        draw.text(
+            (5, self.display.height - font_height * 2),
+            self._main_text,
+            font=self.large_font,
+            fill=BLACK,
+        )
+
+        # Draw the description
+        (font_width, font_height) = small_font.getsize(self._description)
+        draw.text(
+            (5, self.display.height - font_height - 5),
+            self._description,
+            font=self.small_font,
+            fill=BLACK,
+        )
+
+        # Draw the temperature
+        (font_width, font_height) = large_font.getsize(self._temperature)
+        draw.text(
+            (
+                self.display.width - font_width - 5,
+                self.display.height - font_height * 2,
+            ),
+            self._temperature,
+            font=self.large_font,
+            fill=BLACK,
+        )
+
+        self.display.image(image)
+        self.display.display()