nRF RPC: Protocols serialization client

The Protocols serialization client sample demonstrates how to send remote procedure calls (RPC) to a protocols serialization server device, such as one running the Protocols serialization server sample. The RPCs are used to control Bluetooth® LE, NFC and OpenThread stacks running on the server device. The client and server devices use the Remote procedure call library (nRF RPC) and the nRF RPC UART transport to communicate with each other.

Requirements

The sample supports the following development kit:

Hardware platforms

PCA

Board name

Board target

nRF54L15 DK

PCA10156

nrf54l15dk

nrf54l15dk/nrf54l15/cpuapp

nRF52840 DK

PCA10056

nrf52840dk

nrf52840dk/nrf52840

To test the sample, you also need another device running the Protocols serialization server sample.

For testing the Bluetooth LE API serialization, you need to have the nRF Connect for Mobile app installed on your smartphone or tablet.

For testing the NFC API serialization, you also need a smartphone or tablet that can read NFC tags.

Overview

The Protocols serialization client sample is a thin client that does not include OpenThread, Bluetooth LE or NFC stacks. Instead, it provides implementations of selected OpenThread, Bluetooth LE and NFC functions that forward the function calls over UART to the Protocols serialization server. The client also includes a shell for testing the serialization.

Configuration

See Configuring and building for information about how to permanently or temporarily change the configuration.

Snippets

The following snippets are available:

  • ble - Enables the client part of the Bluetooth LE RPC and shell interface to serialized API. Also enables the Bluetooth LE Nordic UART Service.

  • coex - Enables shell commands for the MPSL software coexistence implementation on the server device.

  • debug - Enables debugging the sample by enabling __ASSERT() statements globally and verbose logging.

  • log_rpc - Enables logging over RPC.

  • openthread - Enables the client part of the OpenThread RPC.

  • nfc - Enables the client part of the NFC RPC.

Building and running

This sample can be found under samples/nrf_rpc/protocols_serialization/client in the nRF Connect SDK folder structure.

To build the sample, follow the instructions in Building an application for your preferred building environment. See also Programming an application for programming steps and Testing and optimization for general information about testing and debugging in the nRF Connect SDK.

Note

When building repository applications in the SDK repositories, building with sysbuild is enabled by default. If you work with out-of-tree freestanding applications, you need to manually pass the --sysbuild parameter to every build command or configure west to always use it.

You can modify the list of enabled features, which by default includes Bluetooth LE support and debug logs.

Testing

To test the client sample, follow the instructions in the Testing section of the protocol serialization server sample test procedure.

Dependencies

This sample uses the following nRF Connect SDK libraries:

This sample uses the following sdk-nrfxlib library: