https://devzone.nordicsemi.com/f/nordic-q-a/55100/nrf52840-enhanced-shockburst-nrf24-250kbit-sHi, I&#39;m using devices I haven&#39;t developed but on the which I&#39;d like to add functionalities. These devices are working as a small network using 2.4Ghz Nordic ESB protocol. The communication between these devices is based upon nRF24 chips. I&#39;d likeen-USTelligent Community 13Mon, 02 Dec 2019 12:32:07 GMThttps://devzone.nordicsemi.com/thread/223038?ContentTypeID=1Mon, 02 Dec 2019 12:32:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c6e2e437-20c7-44bf-b636-cbf623a8bfa9Kenneth<p>Hi,</p> <p>There is no support for the legacy ESB 250kbps mode on the nRF52840. Even if you may get it somewhat to work on a prototype by disabled ACK, it&#39;s not been tested or qualified to be compatible with the ESB 250kbps on the nRF24L-series, so it&#39;s not something I can recommend.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>