https://devzone.nordicsemi.com/f/nordic-q-a/33753/sniffer---nrf52dkhi, I am using nRF52-DK with nrf Sniffer What are LED 1 and LED 2 Indicate ? Initially LED 2 Blinks very Fast, Sometimes LED 1 is Off LED 2 is ON sometimes LED 1 and LED2 both are Off Any tutorials available ?en-USTelligent Community 13Tue, 24 Apr 2018 09:51:07 GMThttps://devzone.nordicsemi.com/thread/129519?ContentTypeID=1Tue, 24 Apr 2018 09:51:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f1b65ab1-d539-404c-b268-622f3a0c708fpriya123<p>hmmm&nbsp; after repeated observation&nbsp; LED1 Blinks when ADV packets recived When &quot;All Advertising Devices&quot; selected in WireShark Combo Box&nbsp; LED 1 Blinks for a particular Device</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/129513?ContentTypeID=1Tue, 24 Apr 2018 09:28:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:218d90c7-5dc4-404e-b491-1b59b8ee5b08David Edwin<p>LED2 behavior is for internal use we have decided to regress them and will not support it in future.</p> <p>&quot;Verify that the Sniffer firmware is running correctly by checking that LED1 toggles each time a<br />packet is received. At least one device must be advertising for the Sniffer to detect the<br />advertisements.&quot;</p> <p>As in the stated in the nRF Sniffer v2.1 user guide.</p> <p>There is no tutorial available.</p><div style="clear:both;"></div>