Your board has a WS281x RGB LED (NeoPixel, in Adafruit jargon) built in. Boards running the WipperSnapper firmware can be wirelessly controlled by Adafruit IO to interact with NeoPixels.
On this page, you'll learn how to change the color and brightness of the NeoPixel built into your board from Adafruit IO.
Create the NeoPixel Component
On the device page, click the New Component (or "+") button to open the component picker.
Under the Pixel Components header on the component picker, click NeoPixel.
The board NeoPixel pin is automatically found and selected.
Click Create Component
Behind the scenes, Adafruit IO sends a command to your board running WipperSnapper firmware telling it to configure the pin as a NeoPixel component with the settings from the form.
The Device page shows the NeoPixel component.
Set the NeoPixel's RGB Color
Since no colors have been set yet, the color picker's default value is #000000 (black in hex color code) and appears "off". Let's change that to make the NeoPixel shine brightly!
On the NeoPixel component, click the gray "No Color Set" button.
A color picker pops open! Next, let's learn how Adafruit IO uses hex color codes to represent the colors on your NeoPixel.
Hex Colors 101
The color picker on Adafruit IO uses hex color codes to represent Red, Green, and Blue values. For example, #FF0000 is the hex color code for the color red. The colors (#FF0000) red component is FF (255 translated to decimal), the green component is 00 and the blue component is 00. Translated to RGB format, the color is RGB (255, 0, 0).
Using the color picker, or by manually entering a hex color code, select a color.
When you're ready to set the color of your device's NeoPixel, click FILL WITH COLOR. The NeoPixel will immediately glow!
Set NeoPixel Brightness
If the NeoPixel is too bright (or too dim), you can change its brightness. Click the gear/cog icon on the NeoPixel component to open its settings.
On the NeoPixel component form, set Brightness to a value between 0 (fully off) and 255 (full brightness).
Click the Update Component button to send the updated configuration to your device.
