Introduction

CircuitPython helper for Adafruit MatrixPortal M4, Adafruit RGB Matrix Shield + Metro M4 Airlift Lite, and Adafruit RGB Matrix FeatherWings

Dependencies

This driver depends on:

• Adafruit CircuitPython

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Usage Example

import time
import board
import terminalio
from adafruit_matrixportal.matrixportal import MatrixPortal

# You can display in 'GBP', 'EUR' or 'USD'
CURRENCY = "USD"
# Set up where we'll be fetching data from
DATA_SOURCE = "https://api.coindesk.com/v1/bpi/currentprice.json"
DATA_LOCATION = ["bpi", CURRENCY, "rate_float"]


def text_transform(val):
    if CURRENCY == "USD":
        return "$%d" % val
    if CURRENCY == "EUR":
        return "‎€%d" % val
    if CURRENCY == "GBP":
        return "£%d" % val
    return "%d" % val


# the current working directory (where this file is)
cwd = ("/" + __file__).rsplit("/", 1)[0]

matrixportal = MatrixPortal(
    url=DATA_SOURCE,
    json_path=DATA_LOCATION,
    status_neopixel=board.NEOPIXEL,
    debug=True,
)

matrixportal.add_text(
    text_font=terminalio.FONT,
    text_position=(16, 16),
    text_color=0xFFFFFF,
    text_transform=text_transform,
)
matrixportal.preload_font(b"$012345789")  # preload numbers
matrixportal.preload_font((0x00A3, 0x20AC))  # preload gbp/euro symbol

while True:
    try:
        value = matrixportal.fetch()
        print("Response is", value)
    except (ValueError, RuntimeError) as e:
        print("Some error occured, retrying! -", e)

    time.sleep(3 * 60)  # wait 3 minutes

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

Documentation

For information on building library documentation, please check out this guide.