kopia lustrzana https://github.com/pimoroni/pimoroni-pico
102 wiersze
2.5 KiB
Python
102 wiersze
2.5 KiB
Python
import gc
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import jpegdec
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from urllib import urequest
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from ujson import load
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gc.collect()
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graphics = None
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WIDTH = None
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HEIGHT = None
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FILENAME = "nasa-apod-daily"
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# A Demo Key is used in this example and is IP rate limited. You can get your own API Key from https://api.nasa.gov/
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API_URL = "https://api.nasa.gov/planetary/apod?api_key=DEMO_KEY"
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# Length of time between updates in minutes.
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# Frequent updates will reduce battery life!
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UPDATE_INTERVAL = 240
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# Variable for storing the NASA APOD Title
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apod_title = None
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def show_error(text):
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graphics.set_pen(4)
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graphics.rectangle(0, 10, WIDTH, 35)
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graphics.set_pen(1)
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graphics.text(text, 5, 16, 400, 2)
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def update():
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global apod_title
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if HEIGHT == 448:
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# Image for Inky Frame 5.7
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IMG_URL = "https://pimoroni.github.io/feed2image/nasa-apod-daily.jpg"
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elif HEIGHT == 400:
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# Image for Inky Frame 4.0
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IMG_URL = "https://pimoroni.github.io/feed2image/nasa-apod-640x400-daily.jpg"
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elif HEIGHT == 480:
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# Image for Inky Frame 7.3
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IMG_URL = "https://pimoroni.github.io/feed2image/nasa-apod-800x480-daily.jpg"
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try:
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# Grab the data
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socket = urequest.urlopen(API_URL)
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gc.collect()
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j = load(socket)
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socket.close()
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apod_title = j['title']
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gc.collect()
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except OSError as e:
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print(e)
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apod_title = "Image Title Unavailable"
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try:
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# Grab the image
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socket = urequest.urlopen(IMG_URL)
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gc.collect()
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data = bytearray(1024)
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with open(FILENAME, "wb") as f:
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while True:
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if socket.readinto(data) == 0:
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break
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f.write(data)
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socket.close()
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del data
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gc.collect()
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except OSError as e:
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print(e)
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show_error("Unable to download image")
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def draw():
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jpeg = jpegdec.JPEG(graphics)
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gc.collect() # For good measure...
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graphics.set_pen(1)
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graphics.clear()
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try:
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jpeg.open_file(FILENAME)
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jpeg.decode()
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except OSError:
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graphics.set_pen(4)
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graphics.rectangle(0, (HEIGHT // 2) - 20, WIDTH, 40)
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graphics.set_pen(1)
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graphics.text("Unable to display image!", 5, (HEIGHT // 2) - 15, WIDTH, 2)
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graphics.text("Check your network settings in secrets.py", 5, (HEIGHT // 2) + 2, WIDTH, 2)
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graphics.set_pen(0)
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graphics.rectangle(0, HEIGHT - 25, WIDTH, 25)
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graphics.set_pen(1)
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graphics.text(apod_title, 5, HEIGHT - 20, WIDTH, 2)
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gc.collect()
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graphics.update()
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