https://devzone.nordicsemi.com/f/nordic-q-a/45629/how-can-i-know-the-destination-address-when-i-receive-an-esb-packetHi, I am using esb function to implement my project, and I set &quot;noack&quot; condition to &quot;true&quot;. How can I know the destination address when I receive a packet? Thank you, Chianglinen-USTelligent Community 13Tue, 02 Apr 2019 07:18:03 GMThttps://devzone.nordicsemi.com/thread/179664?ContentTypeID=1Tue, 02 Apr 2019 07:18:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5259f1f9-6365-4c30-92e2-f9a1482a0968ovrebekk<p>Hi Chianglin</p> <p>In ESB mode the radio address is abstracted using the pipe concept. Essentially you configure up to 8 different addresses in the radio, and you only refer to them by referencing the pipe number (0-7).&nbsp;</p> <p>Whenever you receive a packet you can read the reception pipe from the pipe field in the nrf_esb_payload_t struct, and the address will correspond to the address you have configure into that pipe.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>