IoT & Hardware
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You're reading from  Practical Python Programming for IoT

Product typeBook
Published inNov 2020
Reading LevelIntermediate
PublisherPackt
ISBN-139781838982461
Edition1st Edition
Languages
Python
Tools
Raspberry Pi
Concepts
IoT Development
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Author (1)
Gary Smart
Gary Smart
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Gary Smart


Read more about Gary Smart

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Configuring and running the APA102 LED strip code

Now that you have your circuit ready and our LED strip's expected current usage, let's configure and light up our LED strip:

  1. Edit the chapter08/apa102_led_strip.py file and look for the following line near the top of the file. Adjust the number to be the number of safe LEDs you calculated previously, or the number of LEDs on your strip if it had a suitably capable power supply:
NUM_LEDS = 60     # (2)
  1. Save your edits and run the code. If everything is connected correctly, you should observe the LEDs on the strip cycle through the colors red, green, and blue and then perform a few different light sequences.
If your LED strip is not working, check out the APA102 LED strip troubleshooting tips later in the section.

If your strip does not show red, green, and blue in that order, then you would need to adjust code to set the correct order—I'll show you where in the code you can adjust...

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Practical Python Programming for IoT
Published in: Nov 2020Publisher: PacktISBN-13: 9781838982461
© 2020 Packt Publishing Limited All Rights Reserved

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