Simple test
Ensure your device works with this simple test.
examples/dotstar_simpletest.py
1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
2# SPDX-License-Identifier: MIT
3
4import random
5import time
6
7import board
8
9import adafruit_dotstar as dotstar
10
11# On-board DotStar for boards including Gemma, Trinket, and ItsyBitsy
12dots = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
13
14# Using a DotStar Digital LED Strip with 30 LEDs connected to hardware SPI
15# dots = dotstar.DotStar(board.SCK, board.MOSI, 30, brightness=0.2)
16
17# Using a DotStar Digital LED Strip with 30 LEDs connected to digital pins
18# dots = dotstar.DotStar(board.D6, board.D5, 30, brightness=0.2)
19
20
21# HELPERS
22# a random color 0 -> 192
23def random_color():
24 return random.randrange(0, 7) * 32
25
26
27# MAIN LOOP
28n_dots = len(dots)
29while True:
30 # Fill each dot with a random color
31 for dot in range(n_dots):
32 dots[dot] = (random_color(), random_color(), random_color())
33
34 time.sleep(0.25)