https://devzone.nordicsemi.com/f/nordic-q-a/78819/ncs-zephyr-ws2812-interrupt-activity----turn-off-bluetooth-radioI’m getting some strange behavior after repurposing the WS2812 driver sample with the following code. Note that my code has Bluetooth enabled. It seems like it might be some sort of invalid interrupt activity or something. As the video below shows thereen-USTelligent Community 13Mon, 23 Aug 2021 11:13:14 GMThttps://devzone.nordicsemi.com/thread/326153?ContentTypeID=1Mon, 23 Aug 2021 11:13:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a299bb5c-d3d6-45bd-a36e-b5eb2f74dc31Sigurd<p>Hi,</p> [quote user=""]Does this seem like a reasonable assumption?&nbsp;[/quote] <p>Yes, it could be that the Bluetooth activity interrupts your&nbsp;led_strip_update_rgb() function, and that causes some strange LED behavior.</p> [quote user=""]If so, is there an easy way to turn off the Bluetooth radio activity before calling the led_strip_update function?&nbsp;[/quote] <p>Try to use&nbsp;<span>led_strip_update_rgb() inside a MPSL timeslot,</span></p> <p><a href="https://github.com/nrfconnect/sdk-nrf/tree/v1.6.1/samples/mpsl/timeslot">https://github.com/nrfconnect/sdk-nrf/tree/v1.6.1/samples/mpsl/timeslot</a></p> <p><a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrfxlib/mpsl/doc/timeslot.html">http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrfxlib/mpsl/doc/timeslot.html</a></p> <p>There are no Bluetooth and radio activity when you are in the timeslot.</p> <p>Alternatively,&nbsp; <a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrfxlib/mpsl/doc/radio_notification.html">r</a><span><a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrfxlib/mpsl/doc/radio_notification.html">adio notifications</a> could perhaps&nbsp;also be used to decide when you call&nbsp;led_strip_update_rgb().</span></p> <p><span></span></p><div style="clear:both;"></div>