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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>How to control WS2812 via I2S on Adafruit Feather nRF52840 Express</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/125838/how-to-control-ws2812-via-i2s-on-adafruit-feather-nrf52840-express</link><description>I would like to control the RGB LED on the board. I followed the drievr example provided by the nrf sdk, but it doesn&amp;#39;t work. As far as I understand, I don&amp;#39;t need the signal inversion because SDOUT is directly connected to the LED. VDD seems to be sourced</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 27 Nov 2025 14:16:06 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/125838/how-to-control-ws2812-via-i2s-on-adafruit-feather-nrf52840-express" /><item><title>RE: How to control WS2812 via I2S on Adafruit Feather nRF52840 Express</title><link>https://devzone.nordicsemi.com/thread/555633?ContentTypeID=1</link><pubDate>Thu, 27 Nov 2025 14:16:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:6a9946e3-0b53-4f3d-ab09-403562892a77</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;I don&amp;#39;t have a better suggestion that to start with the example as it is, and run on the nRF52840:&lt;br /&gt;\zephyr\samples\drivers\led\led_strip\&lt;/p&gt;
&lt;p&gt;Rename the&amp;nbsp;\zephyr\samples\drivers\led\led_strip\boards\thingy52_nrf52832.overlay to&amp;nbsp;\zephyr\samples\drivers\led\led_strip\boards\nrf52840dk_nrf52840.overlay&lt;/p&gt;
&lt;p&gt;And update the pins to fit your setup, and also power the led strip externally for now.&lt;/p&gt;
&lt;p&gt;Edit: Looking at your description it seems that might be what you have already done. I guess the next step then is to connect a logic analyzer to see if that may shed any light on the problem (do i2s execute as expected).&lt;/p&gt;
&lt;p&gt;Kenneth&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>