TheWS2812BRgbLED < AFNOG

---+ The !WS2812B RGB LED shield

On this board we have the addressable [[https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf][WS2812B]] RGB LED. This LED is used in many LED chains.

<img alt="ws2812b.png" height="149" src="%ATTACHURL%/ws2812b.png" title="ws2812b.png" width="152" />

The board uses D2 (GPIO 4) as data line. Since the same line is used as SDA for !I2C modules it cannot be used in conjunction with !I2C shields.

From the software point of view a driver is already available in the micro Python library named neopixel. Accessing the !WS2812B using this driver is the pretty simple.

Here is a program demonstrating this:

%ATTACHURL%/ws2812.py.txt

Be careful with this LED and do not look into into when it emits light with full intensity. The light is so intense that you may damage your eyes!

-- %USERSIG{UliRaich - 2019-03-22}%

---++ Comments

%COMMENT%

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
png	ws2812b.png	r1	manage	40.1 K	2019-03-22 - 13:56	UliRaich
txt	ws2812.py.txt	r1	manage	0.6 K	2019-03-22 - 14:02	UliRaich

This topic: AFNOG > WebHome > AFNOGWorkshop2019 > WeMosD1Mini > TheWS2812BRgbLED
Topic revision: r1 - 2019-03-22 - UliRaich