Simple test

Ensure your device works with this simple test.

examples/matrixportal_simpletest.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2#
 3# SPDX-License-Identifier: Unlicense
 4"""
 5This example checks the current Bitcoin price and displays it in the middle of the screen
 6"""
 7import time
 8import board
 9import terminalio
10from adafruit_matrixportal.matrixportal import MatrixPortal
11
12# You can display in 'GBP', 'EUR' or 'USD'
13CURRENCY = "USD"
14# Set up where we'll be fetching data from
15DATA_SOURCE = "https://api.coindesk.com/v1/bpi/currentprice.json"
16DATA_LOCATION = ["bpi", CURRENCY, "rate_float"]
17
18
19def text_transform(val):
20    if CURRENCY == "USD":
21        return "$%d" % val
22    if CURRENCY == "EUR":
23        return "‎€%d" % val
24    if CURRENCY == "GBP":
25        return "£%d" % val
26    return "%d" % val
27
28
29# the current working directory (where this file is)
30cwd = ("/" + __file__).rsplit("/", 1)[0]
31
32matrixportal = MatrixPortal(
33    url=DATA_SOURCE,
34    json_path=DATA_LOCATION,
35    status_neopixel=board.NEOPIXEL,
36)
37
38matrixportal.add_text(
39    text_font=terminalio.FONT,
40    text_position=(16, 16),
41    text_color=0xFFFFFF,
42    text_transform=text_transform,
43)
44matrixportal.preload_font(b"$012345789")  # preload numbers
45matrixportal.preload_font((0x00A3, 0x20AC))  # preload gbp/euro symbol
46
47while True:
48    try:
49        value = matrixportal.fetch()
50        print("Response is", value)
51    except (ValueError, RuntimeError) as e:
52        print("Some error occured, retrying! -", e)
53
54    time.sleep(3 * 60)  # wait 3 minutes

Other tests

Scrolling Bitcoin Test

examples/matrixportal_scrolling_bitcoin.py
 1# SPDX-FileCopyrightText: 2020 Melissa LeBlanc-Williams, written for Adafruit Industries
 2#
 3# SPDX-License-Identifier: Unlicense
 4"""
 5This example checks the current Bitcoin price and scrolls it across the screen
 6"""
 7import time
 8import board
 9import terminalio
10from adafruit_matrixportal.matrixportal import MatrixPortal
11
12# You can display in 'GBP', 'EUR' or 'USD'
13CURRENCY = "USD"
14# Set up where we'll be fetching data from
15DATA_SOURCE = "https://api.coindesk.com/v1/bpi/currentprice.json"
16DATA_LOCATION = ["bpi", CURRENCY, "rate_float"]
17
18
19def text_transform(val):
20    if CURRENCY == "USD":
21        return "$%d" % val
22    if CURRENCY == "EUR":
23        return "‎€%d" % val
24    if CURRENCY == "GBP":
25        return "£%d" % val
26    return "%d" % val
27
28
29# the current working directory (where this file is)
30cwd = ("/" + __file__).rsplit("/", 1)[0]
31
32matrixportal = MatrixPortal(
33    url=DATA_SOURCE,
34    json_path=DATA_LOCATION,
35    status_neopixel=board.NEOPIXEL,
36)
37
38matrixportal.add_text(
39    text_font=terminalio.FONT,
40    text_position=(16, 16),
41    text_color=0xFFFFFF,
42    text_transform=text_transform,
43    scrolling=True,
44)
45matrixportal.preload_font(b"$012345789")  # preload numbers
46matrixportal.preload_font((0x00A3, 0x20AC))  # preload gbp/euro symbol
47
48last_check = None
49
50while True:
51    if last_check is None or time.monotonic() > last_check + 180:
52        try:
53            value = matrixportal.fetch()
54            print("Response is", value)
55            last_check = time.monotonic()
56        except (ValueError, RuntimeError) as e:
57            print("Some error occured, retrying! -", e)
58    matrixportal.scroll()
59    time.sleep(0.03)