ws2812 LED Driver with nrf52840

[Haresh05]

I want to control the ws2812 LED Driver using nrf52840 and connect sdk.

I have tried the example led_strip but it does not compile.

I have checked on forum and found that a sample for that is already available as led_ws2812. But in my repo that example is not present.

I am using ncs version 2.7.0.Currently I am using nrf52840 Developement kit for testing.

[JONATHAN LL]

Hi,

Here is the documentation,https://docs.nordicsemi.com/bundle/ncs-2.5.2/page/zephyr/samples/drivers/led_ws2812/README.html , NCS release v2.5.2 seems to be the last that had it. But it is a Zephyr sample so have a look there. 

https://docs.zephyrproject.org/2.7.5/samples/drivers/led_ws2812/README.html here as well in the zephyr docs. 

Regards,
Jonathan

[Haresh05]

Hi,

Any specific reason that this example is removed from latest NCS releases?

Also, I tried led_strip example and it does not build for nrf52840dk. Any help on that will be great.

[JONATHAN LL]

There has been some re-naming of things, can find it here https://docs.nordicsemi.com/bundle/ncs-2.7.0/page/zephyr/samples/drivers/led_strip/README.html , so that is the latest version of the sample. 

What errors do you get?  

There is also public samples like this : https://github.com/rmptxf/NeoController , https://medium.com/@rmptxf/control-a-neopixel-using-i2s-via-ble-92728d0cbd37 

And this https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/driving-ws2812b-leds-using-i2s-on-the-nordic-nrf52 

Regards,
Jonathan

[Haresh05]

The led_strip example compiled. Initially it didn't had any board.overlay file in boards directory of sample.

I added that but the name I given was nrf52dk_nrf52840.overlay but it should be nrf52840dk_nrf52840.overlay. I modified the name and it compiled.

Now will test with the strip and check.

Thank you for your support