openmeteo magtag weather update

Author: caternuson

MagTag/MagTag_Weather/openmeteo/bmps/weather_bg.bmp

@@ -0,0 +1,319 @@
+# SPDX-FileCopyrightText: 2024 Carter Nelson for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+# pylint: disable=redefined-outer-name, eval-used, wrong-import-order
+
+import time
+import terminalio
+import displayio
+import adafruit_imageload
+from adafruit_display_text import label
+from adafruit_magtag.magtag import MagTag
+# needed for NTP
+import wifi
+import socketpool
+import adafruit_ntp
+
+# --| USER CONFIG |--------------------------
+LAT = 47.6                  # latitude
+LON = -122.3                # longitude
+TMZ = "America/Los_Angeles" # https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+METRIC = False              # set to True for metric units
+# -------------------------------------------
+
+# ----------------------------
+# Define various assets
+# ----------------------------
+BACKGROUND_BMP = "/bmps/weather_bg.bmp"
+ICONS_LARGE_FILE = "/bmps/weather_icons_70px.bmp"
+ICONS_SMALL_FILE = "/bmps/weather_icons_20px.bmp"
+DAYS = ("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")
+MONTHS = (
+    "January",
+    "February",
+    "March",
+    "April",
+    "May",
+    "June",
+    "July",
+    "August",
+    "September",
+    "October",
+    "November",
+    "December",
+)
+
+# Weather Code Information from https://open-meteo.com/en/docs
+# Code 	Description
+# 0 	Clear sky
+# 1, 2, 3 	Mainly clear, partly cloudy, and overcast
+# 45, 48 	Fog and depositing rime fog
+# 51, 53, 55 	Drizzle: Light, moderate, and dense intensity
+# 56, 57 	Freezing Drizzle: Light and dense intensity
+# 61, 63, 65 	Rain: Slight, moderate and heavy intensity
+# 66, 67 	Freezing Rain: Light and heavy intensity
+# 71, 73, 75 	Snow fall: Slight, moderate, and heavy intensity
+# 77 	Snow grains
+# 80, 81, 82 	Rain showers: Slight, moderate, and violent
+# 85, 86 	Snow showers slight and heavy
+# 95 * 	Thunderstorm: Slight or moderate
+# 96, 99 * 	Thunderstorm with slight and heavy hail
+
+# Map the above WMO codes to index of icon in 3x3 spritesheet
+WMO_CODE_TO_ICON = (
+    (0,),                                       # 0 = sunny
+    (1,),                                       # 1 = partly sunny/cloudy
+    (2,),                                       # 2 = cloudy
+    (3,),                                       # 3 = very cloudy
+    (61, 63, 65),                               # 4 = rain
+    (51, 53, 55, 80, 81, 82),                   # 5 = showers
+    (95, 96, 99),                               # 6 = storms
+    (56, 57, 66, 67, 71, 73, 75, 77, 85, 86),   # 7 = snow
+    (45, 48),                                   # 8 = fog and stuff
+)
+
+magtag = MagTag()
+
+# ----------------------------
+# Backgrounnd bitmap
+# ----------------------------
+magtag.graphics.set_background(BACKGROUND_BMP)
+
+# ----------------------------
+# Weather icons sprite sheet
+# ----------------------------
+icons_large_bmp, icons_large_pal = adafruit_imageload.load(ICONS_LARGE_FILE)
+icons_small_bmp, icons_small_pal = adafruit_imageload.load(ICONS_SMALL_FILE)
+
+# /////////////////////////////////////////////////////////////////////////
+#  helper functions
+
+def get_forecast():
+    URL  = f"https://api.open-meteo.com/v1/forecast?latitude={LAT}&longitude={LON}&"
+    URL += "daily=weather_code,temperature_2m_max,temperature_2m_min,sunrise,sunset,wind_speed_10m_max,wind_direction_10m_dominant"
+    URL += "&timeformat=unixtime"
+    URL += f"&timezone={TMZ}"
+    resp = magtag.network.fetch(URL)
+    return resp.json()
+
+
+def make_banner(x=0, y=0):
+    """Make a single future forecast info banner group."""
+    day_of_week = label.Label(terminalio.FONT, text="DAY", color=0x000000)
+    day_of_week.anchor_point = (0, 0.5)
+    day_of_week.anchored_position = (0, 10)
+
+    icon = displayio.TileGrid(
+        icons_small_bmp,
+        pixel_shader=icons_small_pal,
+        x=25,
+        y=0,
+        width=1,
+        height=1,
+        tile_width=20,
+        tile_height=20,
+    )
+
+    day_temp = label.Label(terminalio.FONT, text="+100F", color=0x000000)
+    day_temp.anchor_point = (0, 0.5)
+    day_temp.anchored_position = (50, 10)
+
+    group = displayio.Group(x=x, y=y)
+    group.append(day_of_week)
+    group.append(icon)
+    group.append(day_temp)
+
+    return group
+
+
+def temperature_text(tempC):
+    if METRIC:
+        return "{:3.0f}C".format(tempC)
+    else:
+        return "{:3.0f}F".format(32.0 + 1.8 * tempC)
+
+
+def wind_text(speedkmh, direction):
+    wind_dir = "N"
+    if direction < 337:
+        wind_dir = "NW"
+    if direction < 293:
+        wind_dir = "W"
+    if direction < 247:
+        wind_dir = "SW"
+    if direction < 202:
+        wind_dir = "S"
+    if direction < 157:
+        wind_dir = "SE"
+    if direction < 112:
+        wind_dir = "E"
+    if direction < 67:
+        wind_dir = "NE"
+    if direction < 22:
+        wind_dir = "N"
+
+    wtext = f"from {wind_dir} "
+
+    if METRIC:
+        wtext += "{:2.0f}kmh".format(speedkmh)
+    else:
+        wtext += "{:2.0f}mph".format(0.621371 * speedkmh)
+    
+    return wtext
+
+
+def update_today(data):
+    """Update today weather info."""
+    # date text
+    s = data["daily"]["time"][0] + data["utc_offset_seconds"]
+    t = time.localtime(s)
+    today_date.text = "{} {} {}, {}".format(
+        DAYS[t.tm_wday].upper(),
+        MONTHS[t.tm_mon - 1].upper(),
+        t.tm_mday,
+        t.tm_year
+    )
+    # weather icon
+    w = data["daily"]["weather_code"][0]
+    today_icon[0] = next(i for i, t in enumerate(WMO_CODE_TO_ICON) if w in t)
+    # temperatures
+    today_low_temp.text = temperature_text(data["daily"]["temperature_2m_min"][0])
+    today_high_temp.text = temperature_text(data["daily"]["temperature_2m_max"][0])
+    # wind
+    s = data["daily"]["wind_speed_10m_max"][0]
+    d = data["daily"]["wind_direction_10m_dominant"][0]
+    today_wind.text = wind_text(s, d)
+    # sunrise/set
+    sr = time.localtime(data["daily"]["sunrise"][0] + data["utc_offset_seconds"])
+    ss = time.localtime(data["daily"]["sunset"][0] + data["utc_offset_seconds"])
+    today_sunrise.text = "{:2d}:{:02d} AM".format(sr.tm_hour, sr.tm_min)
+    today_sunset.text = "{:2d}:{:02d} PM".format(ss.tm_hour - 12, ss.tm_min)
+
+
+def update_future(data):
+    """Update the future forecast info."""
+    for i, banner in enumerate(future_banners):
+        # day of week
+        s = data["daily"]["time"][i+1] + data["utc_offset_seconds"]
+        t = time.localtime(s)
+        banner[0].text = DAYS[t.tm_wday][:3].upper()
+        # weather icon
+        w = data["daily"]["weather_code"][i+1]
+        banner[1][0] = next(x for x, t in enumerate(WMO_CODE_TO_ICON) if w in t)
+        # temperature
+        t = data["daily"]["temperature_2m_max"][i+1]
+        banner[2].text = temperature_text(t)
+
+
+def get_ntp_time(offset):
+    """Use NTP to get current local time."""
+    pool = socketpool.SocketPool(wifi.radio)
+    ntp = adafruit_ntp.NTP(pool, tz_offset=offset)
+    if ntp:
+        return ntp.datetime
+    else:
+        return None
+
+
+def go_to_sleep(current_time):
+    """Enter deep sleep for time needed."""
+    # compute current time offset in seconds
+    hour = current_time.tm_hour
+    minutes = current_time.tm_min
+    seconds = current_time.tm_sec
+    seconds_since_midnight = 60 * (hour * 60 + minutes) + seconds
+    three_fifteen = (3 * 60 + 15) * 60
+    # wake up 15 minutes after 3am
+    seconds_to_sleep = (24 * 60 * 60 - seconds_since_midnight) + three_fifteen
+    print(
+        "Sleeping for {} hours, {} minutes".format(
+            seconds_to_sleep // 3600, (seconds_to_sleep // 60) % 60
+        )
+    )
+    magtag.exit_and_deep_sleep(seconds_to_sleep)
+
+
+# ===========
+# U I
+# ===========
+today_date = label.Label(terminalio.FONT, text="?" * 30, color=0x000000)
+today_date.anchor_point = (0, 0)
+today_date.anchored_position = (15, 14)
+
+location_name = label.Label(terminalio.FONT, text=f"({LAT},{LON})", color=0x000000)
+location_name.anchor_point = (0, 0)
+location_name.anchored_position = (15, 25)
+
+today_icon = displayio.TileGrid(
+    icons_large_bmp,
+    pixel_shader=icons_small_pal,
+    x=10,
+    y=40,
+    width=1,
+    height=1,
+    tile_width=70,
+    tile_height=70,
+)
+
+today_low_temp = label.Label(terminalio.FONT, text="+100F", color=0x000000)
+today_low_temp.anchor_point = (0.5, 0)
+today_low_temp.anchored_position = (122, 60)
+
+today_high_temp = label.Label(terminalio.FONT, text="+100F", color=0x000000)
+today_high_temp.anchor_point = (0.5, 0)
+today_high_temp.anchored_position = (162, 60)
+
+today_wind = label.Label(terminalio.FONT, text="99m/s", color=0x000000)
+today_wind.anchor_point = (0, 0.5)
+today_wind.anchored_position = (110, 95)
+
+today_sunrise = label.Label(terminalio.FONT, text="12:12 PM", color=0x000000)
+today_sunrise.anchor_point = (0, 0.5)
+today_sunrise.anchored_position = (45, 117)
+
+today_sunset = label.Label(terminalio.FONT, text="12:12 PM", color=0x000000)
+today_sunset.anchor_point = (0, 0.5)
+today_sunset.anchored_position = (130, 117)
+
+today_banner = displayio.Group()
+today_banner.append(today_date)
+today_banner.append(location_name)
+today_banner.append(today_icon)
+today_banner.append(today_low_temp)
+today_banner.append(today_high_temp)
+today_banner.append(today_wind)
+today_banner.append(today_sunrise)
+today_banner.append(today_sunset)
+
+future_banners = [
+    make_banner(x=210, y=18),
+    make_banner(x=210, y=39),
+    make_banner(x=210, y=60),
+    make_banner(x=210, y=81),
+    make_banner(x=210, y=102),
+]
+
+magtag.splash.append(today_banner)
+for future_banner in future_banners:
+    magtag.splash.append(future_banner)
+
+# ===========
+#  M A I N
+# ===========
+print("Fetching forecast...")
+forecast_data = get_forecast()
+
+print("Updating...")
+update_today(forecast_data)
+update_future(forecast_data)
+
+print("Refreshing...")
+time.sleep(magtag.display.time_to_refresh + 1)
+magtag.display.refresh()
+time.sleep(magtag.display.time_to_refresh + 1)
+
+print("Sleeping...")
+go_to_sleep(get_ntp_time(forecast_data["utc_offset_seconds"]/3600))
+#  entire code will run again after deep sleep cycle
+#  similar to hitting the reset button
+