1.21.0

📈 Added

• General:

  • Logs captured by Memfault now include a timestamp by default, when the
    platform implements memfault_platform_time_get_current(). This feature can
    be disabled by setting #define MEMFAULT_LOG_TIMESTAMPS_ENABLE 0 in
    memfault_platform_config.h.

• ESP-IDF:

  • Add new built-in Wi-Fi metrics:

    • wifi_primary_channel - the primary channel ID of the associated Wi-Fi
      access point
    • wifi_auth_mode - the authentication mode of the associated Wi-Fi access
      point, for example WPA2_PSK
    • wifi_standard_version - the Wi-Fi version of the associated Wi-Fi access
      point, for example 802.11n

    These metrics are enabled by default and can be disabled (along with other
    built-in Wi-Fi metrics) with the Kconfig option
    CONFIG_MEMFAULT_ESP_WIFI_METRICS

🛠️ Changed

• ESP-IDF:

  • Support cases where the IDF_VER build variable is set to
    "HEAD-HASH-NOTFOUND" (i.e. using an ESP-IDF SDK that is not a git repo),
    when setting the built-in metric MemfaultSdkMetric_os_version. In this
    case, the value is taken from the ESP_IDF_VERSION_x macros, which are less
    precise.

  • Use more specific Memfault reset reason codes for these watchdog reset
    types, previously all categorized as HardwareWatchdog

    • ESP_RST_INT_WDT -> SoftwareWatchdog
    • ESP_RST_TASK_WDT -> TaskWatchdog
    • ESP_RST_WDT (RTC watchdog, the real hardware watchdog), stays as
      HardwareWatchdog

🐛 Fixed

• ESP-IDF:

  • Correctly set the Memfault Firmware SDK version inside the
    espressif component
    version of the SDK. Prior to this fix, the SDK version reports as
    "MemfaultSdkMetric_sdk_version": "0.0.0". No change to the SDK, only a
    tooling/release change.