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 basics allow you to control a single LED with color or fill all the LEDs with the same color.
Firstly, connect the WS2812B to the Ameba board as shown in the following diagrams.
AMB21/AMB22 Wiring Diagram:
AMB23 Wiring Diagram:
BW16 Wiring Diagram:
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Download Example
To light up one individual LED or multiple LEDs with the same color, use WS2812B_Basics. Open the example in “File” → “Example” → “AmebaWS2812B” → “WS2812B_Basics”
In the sample code, modify NUM_OF_LEDS to be the number of LEDs that you have connected.
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Preview the result
Next, compile and upload to Ameba, then press the reset button. You will see the first 3 LED lights up with red, green, and blue light colors individually and after a while, all the LEDs will be filled with a color.