1.32.0

This is a minor release. Key updates:

• Integrated fuel gauge battery metrics for nPM13xx PMICs on nRF Connect SDK.
• Added CoAP client for uploading Memfault data via nRF Cloud.
• Fixed build issues and compiler warnings on Zephyr and nRF Connect SDK.

📈 Added

• nRF-Connect SDK:

  • Add a battery metrics port for the nPM1300 and nPM1304 PMICs, which includes
    collecting battery metrics for the
    Battery Device Vital
    and a heartbeat metric for battery voltage. To leverage this port, set
    CONFIG_MEMFAULT_NRF_PLATFORM_BATTERY_NPM13XX=y. Note that users must
    provide the header memfault_nrf_platform_battery_model.h, which should
    define the battery model as specified by the nRF Fuel Gauge API. See the
    Nordic docs
    for more detail. Since this port calls nrf_fuel_gauge_process(),
    applications that want to read state of charge should call
    memfault_platform_get_stateofcharge() to avoid conflicting calls to the
    fuel gauge library.

  • Added a CoAP client implementation capable of uploading Memfault data
    through an nRF Cloud connection. This is
    primarily intended for use with the Nordic nRF91x series devices using LTE-M
    or NB-IoT connectivity. To enable, use
    CONFIG_MEMFAULT_USE_NRF_CLOUD_TRANSPORT=y. This will change the protocol
    used by memfault_zephyr_port_post_data() (and
    CONFIG_MEMFAULT_HTTP_PERIODIC_UPLOAD), from HTTP to CoAP.

• Zephyr:

  • Add the symbol CONFIG_MEMFAULT_METRICS_BATTERY_SOC_PCT_SCALE_VALUE with a
    default value of 1000, which maps to 3 decimal places of precision for
    battery metrics. See the
    Battery Device Vital docs
    for more information on configuring battery metric collection.

🐛 Fixed

• Zephyr:

  • Fix a compiler warning on Zephyr v4.1, when using
    CONFIG_MEMFAULT_METRICS_WIFI. Thanks to
    @chshzh for reporting this issue in
    #98 🎉!

  • Fix an incorrect check for the Kconfig option
    CONFIG_MEMFAULT_FAULT_HANDLER_LOG_PANIC (previously was checking for
    defined(MEMFAULT_FAULT_HANDLER_LOG_PANIC), which is incorrect). Thanks to
    @konstk1 for providing this fix in
    #100 🎉!

• General:

  • Fix a few files that were missing necessary #include <stdio.h> or
    #include <string.h> directives.

• nRF Connect SDK:

  • Fix a compilation error when building for the nRF53 series on nRF Connect
    SDK v3.2.0-rc1 and later, caused by a change in the NRFX HAL. Thanks to
    @Damian-Nordic for providing the fix in
    #99 🎉!