https://devzone.nordicsemi.com/f/nordic-q-a/53655/how-to-send-data-from-one-end-to-another-over-the-air-by-using-zigbee-stack-apiHi, From time to time, we need to send data directly to certain node. There is AF_DataRequest() API in CC2530 to do that. Is there any similar way to implement that kind function?en-USTelligent Community 13Fri, 25 Oct 2019 08:28:14 GMThttps://devzone.nordicsemi.com/thread/216769?ContentTypeID=1Fri, 25 Oct 2019 08:28:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:696f6ee9-fc1a-4c83-b58f-c4eaae119843AndreasF<p>Hi.</p> <p>You have different API calls for <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_tz_v3.2.0%2Fusing_zigbee__z_c_l.html">different clusters and attributes</a> in the ZBOSS stack, so there is not any &quot;general&quot; API call for sending data directly to a certain node.</p> <p>Any API call used depends entirely on what attribute (data) you want to send and what cluster you use.</p> <p>I don&#39;t have any experience with CC2530, but based on what you&#39;re saying I would guess that it probably only support one cluster and therefore you have a &quot;general&quot; API call.</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>