Badger2040W: Add weather example and icons.

micropython/examples/badger2040w/examples/weather.py

@@ -0,0 +1,106 @@
+# This example grabs current weather details from Open Meteo and displays them on Badger 2040 W.
+# Find out more about the Open Meteo API at https://open-meteo.com
+
+import badger2040w as badger2040
+from badger2040w import WIDTH
+import urequests
+import jpegdec
+
+# Set your latitude/longitude here (find yours by right clicking in Google Maps!)
+LAT = 53.38609085276884
+LNG = -1.4239983439328177
+TIMEZONE = "auto"  # determines time zone from lat/long
+
+URL = "http://api.open-meteo.com/v1/forecast?latitude=" + str(LAT) + "&longitude=" + str(LNG) + "&current_weather=true&timezone=" + TIMEZONE
+
+# Display Setup
+display = badger2040.Badger2040W()
+display.led(128)
+display.set_update_speed(2)
+
+jpeg = jpegdec.JPEG(display.display)
+
+# Connects to the wireless network. Ensure you have entered your details in WIFI_CONFIG.py :).
+display.connect()
+
+
+def get_data():
+    global weathercode, temperature, windspeed, winddirection, date, time
+    print(f"Requesting URL: {URL}")
+    r = urequests.get(URL)
+    # open the json data
+    j = r.json()
+    print("Data obtained!")
+    print(j)
+
+    # parse relevant data from JSON
+    current = j["current_weather"]
+    temperature = current["temperature"]
+    windspeed = current["windspeed"]
+    winddirection = calculate_bearing(current["winddirection"])
+    weathercode = current["weathercode"]
+    date, time = current["time"].split("T")
+
+    r.close()
+
+
+def calculate_bearing(d):
+    # calculates a compass direction from the wind direction in degrees
+    dirs = ['N', 'NNE', 'NE', 'ENE', 'E', 'ESE', 'SE', 'SSE', 'S', 'SSW', 'SW', 'WSW', 'W', 'WNW', 'NW', 'NNW']
+    ix = round(d / (360. / len(dirs)))
+    return dirs[ix % len(dirs)]
+
+
+def draw_page():
+    # Clear the display
+    display.set_pen(15)
+    display.clear()
+    display.set_pen(0)
+
+    # Draw the page header
+    display.set_font("bitmap6")
+    display.set_pen(0)
+    display.rectangle(0, 0, WIDTH, 20)
+    display.set_pen(15)
+    display.text("Weather", 3, 4)
+    display.set_pen(0)
+
+    display.set_font("bitmap8")
+
+    if temperature is not None:
+        # Choose an appropriate icon based on the weather code
+        # Weather codes from https://open-meteo.com/en/docs
+        # Weather icons from https://fontawesome.com/
+        if weathercode in [71, 73, 75, 77, 85, 86]:  # codes for snow
+            jpeg.open_file("examples/icon-snow.jpg")
+        elif weathercode in [51, 53, 55, 56, 57, 61, 63, 65, 66, 67, 80, 81, 82]:  # codes for rain
+            jpeg.open_file("examples/icon-rain.jpg")
+        elif weathercode in [1, 2, 3, 45, 48]:  # codes for cloud
+            jpeg.open_file("examples/icon-cloud.jpg")
+        elif weathercode in [0]:  # codes for sun
+            jpeg.open_file("examples/icon-sun.jpg")
+        elif weathercode in [95, 96, 99]:  # codes for storm
+            jpeg.open_file("examples/icon-storm.jpg")
+        jpeg.decode(13, 40, jpegdec.JPEG_SCALE_FULL)
+        display.set_pen(0)
+        display.text(f"Temperature: {temperature}°C", int(WIDTH / 3), 28, WIDTH - 105, 2)
+        display.text(f"Wind Speed: {windspeed}kmph", int(WIDTH / 3), 48, WIDTH - 105, 2)
+        display.text(f"Wind Direction: {winddirection}", int(WIDTH / 3), 68, WIDTH - 105, 2)
+        display.text(f"Last update: {date}, {time}", int(WIDTH / 3), 88, WIDTH - 105, 2)
+
+    else:
+        display.set_pen(0)
+        display.rectangle(0, 60, WIDTH, 25)
+        display.set_pen(15)
+        display.text("Unable to display weather! Check your network settings in WIFI_CONFIG.py", 5, 65, WIDTH, 1)
+
+    display.update()
+
+
+get_data()
+draw_page()
+
+# Call halt in a loop, on battery this switches off power.
+# On USB, the app will exit when A+C is pressed because the launcher picks that up.
+while True:
+    display.halt()