kopia lustrzana https://github.com/blaz-r/pico_python_ws2812b
31 wiersze
1.1 KiB
Markdown
31 wiersze
1.1 KiB
Markdown
# pico_ws2812b
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a library for using WS2812b leds (aka neopixels) with Raspberry Pi Pico
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You'll first need to save the ws2812b.py file to your device (for example, open it in Thonny and go file > save as and select MicroPython device. Give it the same name). Once it's there, you can import it into your code.
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You create an object with the parameters number of LEDs, state machine ID and GPIO number in that order. so, to create a strip of 10 leds on state machine 0 and GPIO 0, you use:
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```
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pixels = ws2812b.ws2812b(10,0,0)
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```
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This object has two methods, show() which sends the data to the strip, and set_pixel which sets the colour values for a particular LED. The parameters are LED number, red, green, blue with the colours taking values between 0 and 255.
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A simple example is the following typed into the interpreter:
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```
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>>> import ws2812b
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>>> pixels = ws2812b.ws2812b(10,0,0)
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>>> pixels.show()
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>>> pixels.set_pixel(5,10,0,0)
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>>> pixels.show()
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>>> pixels.set_pixel(5,0,10,0)
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>>> pixels.show()
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```
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Pull requests are open if you'd like more features!
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