【Follow me Season 2 Episode 1】Step by step practice: RGB (W2812)

秦天qintian0303

【Follow me Season 2 Episode 1】Step by step practice: RGB (W2812) [Copy link]

 

The Circuit Playground Express has 10 RGB (W2812) built into it, located in a circle around the board, just inside the outer ring of alligator clip-friendly pads. RGB refers to the three primary colors Red, Green, and Blue, which means you can create any color and variety with these LEDs.

The colorful marquee at the beginning is this:

It is encapsulated in cp, and the corresponding flag is pixels. We know that this color adjustment basically has an adjustment range of 0~255. Let's first implement monochrome:

cp.pixels.fill((50, 0, 0))

The above code implements the whole RGB display red, showing a single array-like method:

cp.pixels[0] = (255, 0, 0)

Note the corresponding positions of each RGB:

We can change the display brightness, up to a maximum of 1:

cp.pixels.brightness = 0.3