29 lines
965 B
Python
29 lines
965 B
Python
"""
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CircuitPython NeoPixel Blink example - blinking the built-in NeoPixel(s).
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This example is meant for boards that have built-in NeoPixel LEDs but do not have a little
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red LED. If a little red LED is present, use the standard Blink template and example.
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Update NUMBER_OF_PIXELS to the match the number of built-in NeoPixels on the board.
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DO NOT INCLUDE THE pylint: disable LINE IN THE GUIDE CODE. It is present only to deal with the
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NUMBER_OF_PIXELS variable being undefined in this pseudo-code. As you will be updating the variable
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in the guide, you will not need the pylint: disable.
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For example:
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If you are using a QT Py, change NUMBER_OF_PIXELS to 1.
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If using a Neo Trinkey, change NUMBER_OF_PIXELS to 4.
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"""
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# pylint: disable=undefined-variable
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import time
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import board
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import neopixel
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pixel = neopixel.NeoPixel(board.NEOPIXEL, NUMBER_OF_PIXELS)
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while True:
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pixel.fill((255, 0, 0))
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time.sleep(0.5)
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pixel.fill((0, 0, 0))
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time.sleep(0.5)
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