https://devzone.nordicsemi.com/f/nordic-q-a/76645/serialization-stm32-and-nrf52840-pan1780Hi everyone, I am currently carrying out tests to choose a BLE module for future development. The system is as follows: • An STM32L433 manages the application side and controls the module in charge of BLE communication • A BLE module which containsen-USTelligent Community 13Fri, 25 Jun 2021 10:22:53 GMThttps://devzone.nordicsemi.com/thread/317196?ContentTypeID=1Fri, 25 Jun 2021 10:22:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:616e7163-6263-45d6-a929-09d8a7a53ef1Susheel Nuguru<p>You wont be able to use the same commands that you used with SiLabs module to communicate with the Nordic chip as Nordic chip might be using different Codecs for the commands than the SiLabs chips. You need to include the serialization library that implements the Coder on application side and Decoders on the connectivity side. The documentation for this is pretty clear&nbsp; <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v17.0.2%2Flib_serialization.html&amp;cp=8_1_3_44">here</a>&nbsp;including the Architecture, documentation, API and&nbsp; PHY available.&nbsp;</p><div style="clear:both;"></div>