53 lines
1.4 KiB
Python
Executable file
53 lines
1.4 KiB
Python
Executable file
# Run on Metro M4 Airlift w RGB Matrix shield and 64x32 matrix display
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# show current value of Bitcoin in USD
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import time
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import board
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import terminalio
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from adafruit_matrixportal.matrixportal import MatrixPortal
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# You can display in 'GBP', 'EUR' or 'USD'
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CURRENCY = "USD"
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# Set up where we'll be fetching data from
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DATA_SOURCE = "https://api.coindesk.com/v1/bpi/currentprice.json"
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DATA_LOCATION = ["bpi", CURRENCY, "rate_float"]
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def text_transform(val):
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if CURRENCY == "USD":
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return "$%d" % val
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if CURRENCY == "EUR":
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return "€%d" % val
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if CURRENCY == "GBP":
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return "£%d" % val
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return "%d" % val
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# the current working directory (where this file is)
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cwd = ("/" + __file__).rsplit("/", 1)[0]
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matrixportal = MatrixPortal(
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url=DATA_SOURCE,
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json_path=DATA_LOCATION,
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status_neopixel=board.NEOPIXEL,
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default_bg=cwd + "/bitcoin_background.bmp",
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debug=False,
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)
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matrixportal.add_text(
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text_font=terminalio.FONT,
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text_position=(27, 16),
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text_color=0x3d1f5c,
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text_transform=text_transform,
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)
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matrixportal.preload_font(b"$012345789") # preload numbers
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matrixportal.preload_font((0x00A3, 0x20AC)) # preload gbp/euro symbol
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while True:
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try:
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value = matrixportal.fetch()
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print("Response is", value)
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except (ValueError, RuntimeError) as e:
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print("Some error occured, retrying! -", e)
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time.sleep(3 * 60) # wait 3 minutes
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