https://devzone.nordicsemi.com/f/nordic-q-a/75945/nrf52-adc-bluetooth-problemHello everyone, I&#39;ve noticed that the Bluetooth and ADC work great together BUT I&#39;m having issues when trying to turn on &amp; off the Bluetooth. I&#39;ve tested the on &amp; off API for the Bluetooth and they work as expected. However, when I try to switch theen-USTelligent Community 13Tue, 08 Jun 2021 10:33:32 GMThttps://devzone.nordicsemi.com/thread/314167?ContentTypeID=1Tue, 08 Jun 2021 10:33:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:04cad2df-43bd-40fb-a0c7-98ef34d9f322L.B.<p>Hey, indeed the interrupt priority was causing the issue - I changed it to 5 and now my program works. </p> <p>Thank you for your help!</p> <p>L. B.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/313685?ContentTypeID=1Fri, 04 Jun 2021 12:56:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2df1c9a4-5fcf-43ce-81f2-9ddaabb91dbbHeidi<p><strong></strong></p> <p>Hi!</p> <p></p> <p>I see you&#39;re using interrupt priority level 1 for the SAADC, which is reserved for the SoftDevice and must remain unused by the application (see&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sds_s132/SDS/s1xx/processor_avail_interrupt_latency/exception_mgmt_sd.html">https://infocenter.nordicsemi.com/topic/sds_s132/SDS/s1xx/processor_avail_interrupt_latency/exception_mgmt_sd.html</a>).<br /><br /></p> <p>You need to use another interrupt priority for the SAADC.</p> <p></p> <p></p> <p>Best regards,</p> <p>Heidi</p><div style="clear:both;"></div>