• 1
    Introduction

    In this example, we will be using the AmebaD board to control the WS2812B RGB LED, using the SPI peripheral to create the waveform necessary for the LEDs.

    WS2812B_Patterns allows you to create different light patterns with many different colors.

  • 2
    Procedure

    Firstly, connect the WS2812B to the Ameba board as shown in the following diagrams.

    AMB21/AMB22 Wiring Diagram:

    AMB23 Wiring Diagram:

    BW16 Wiring Diagram:

    To create different light patterns with many different colors, use WS2812B_Patterns. Open the example in “File” → “Example” → “AmebaWS2812B” → “WS2812B_Patterns”.

    In the sample code, modify NUM_OF_LEDS to be the number of LEDs that you have connected.

    Next compile and upload to Ameba, then press the reset button. You will see the WS2812B displaying a color wipe, theater chase, rainbow, and theater chase rainbow light patterns in loop.

  • 3
    Code Reference

    [1] WS2812B Datasheet:

    https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf