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The LEDs you linked to have just two pins and automatically cycle through the three colors in a fixed pattern - is this really what is required? Or did you intend to link to a four pin variant with common anode [1] or common cathode [2]?

[1] https://www.amazon.com/dp/B01C19ENFK/

[2] https://www.amazon.com/dp/B01C19ENDM/

The image of a LED used in assignment 0 has 2 pins. That is why I put those links. But I am not totally sure, I could not find any specification.

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