External MCU Interfaced with Nrf52811https://devzone.nordicsemi.com/f/nordic-q-a/52886/external-mcu-interfaced-with-nrf52811Hello, i am looking for documentation in regards to interfacing a external mcu with Nrf52811 via UART. Is there a UART example or AT Client that needs to be flashed to the nrf52 and then i would be able to send AT commands from the external Mcu overen-USTelligent Community 13Fri, 04 Oct 2019 12:01:49 GMTRE: External MCU Interfaced with Nrf52811https://devzone.nordicsemi.com/thread/213408?ContentTypeID=1Fri, 04 Oct 2019 12:01:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67ebfcaa-73fb-47db-bed8-22f73ffc8a42Susheel Nuguru<p>You need to program the examples after downloading the SDK <a href="https://developer.nordicsemi.com/">here</a></p><div style="clear:both;"></div>RE: External MCU Interfaced with Nrf52811https://devzone.nordicsemi.com/thread/213399?ContentTypeID=1Fri, 04 Oct 2019 11:41:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a546e17b-884b-473e-b41a-f4580801914eRicFlair<p>Thanks for the quick response Susheel, As a follow up. If I order a brand new nrf52811, do you know if it will include the&nbsp;SDK or will I need to program it first?</p><div style="clear:both;"></div>RE: External MCU Interfaced with Nrf52811https://devzone.nordicsemi.com/thread/213305?ContentTypeID=1Fri, 04 Oct 2019 06:06:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:25de28de-b3a2-4afd-b430-73e8ba685b37Susheel Nuguru<p>Looks like you are looking for a <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.3.0%2Flib_serialization.html&amp;cp=5_1_3_42">serialization&nbsp;</a>library to use nRF52811 as a connectivity chip with you own dedicated application MCU.</p> <p>The release notes of SDK 15.0 say that you can use SDK15.0 which implemented serialization codecs for S112v6.0. I am not sure if S112v7.0.1 Serialization codeds are implemented yet.</p> <p></p> <p>According to this <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcomp_matrix_nrf52811%2FCOMP%2Fnrf52811%2Fnrf52811_ic_rev_sdk_sd_comp_matrix.html">matrix</a>, you can use S112v6.1.1 on SDK15.3 on nRf52811.&nbsp;</p> <p>Since 6.1.1 is only minor version change, the API should be compatible with S112v6.0.0. So using SDK15.3v S112v6.1.1 should be ok to use for your case.</p><div style="clear:both;"></div>