Adafruit CircuitPython DotStar¶
Higher level DotStar driver that presents the strip as a sequence. It is the same api as the NeoPixel library.
Colors are stored as tuples by default. However, you can also use int hex syntax
to set values similar to colors on the web. For example, 0x100000 (#100000
on the web) is equivalent to (0x10, 0, 0).
If you send a tuple with 4 values, you can control the brightness value, which appears in DotStar but not NeoPixels. It should be a float. For example, (0xFF,0,0, 1.0) is the brightest red possible, (1,0,0,0.01) is the dimmest red possible.
Note
The int hex API represents the brightness of the white pixel when present by setting the RGB channels to identical values. For example, full white is 0xffffff but is actually (0xff, 0xff, 0xff) in the tuple syntax.
Dependencies¶
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
Installing from PyPI¶
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:
pip3 install adafruit-circuitpython-dotstar
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-dotstar
To install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-dotstar
Usage Example¶
This example demonstrates the library with the single built-in DotStar on the Trinket M0 and Gemma M0.
import board
import adafruit_dotstar
pixels = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1)
pixels[0] = (10, 0, 0)
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.