The SparkFun flux-sdk is an embedded framework focused on the rapid development of fully featured embedded applications. Build around the concept of adding high-level "capabilities" to an application with minimal development effort, the sdk provides a wide-variety of high-level objects that automatically fit together to form a cohesive and rapidly developed application.

Key functionality provided by the framework:

• Automatic I2C (qwiic) device discovery, initialization and use.
• Automatic serial driven menu configuration system based on the application definition
• Automatic system persistance - local and SD card file
• Multi-format Data logging support - serial and SD card files
• Support for a wide range of IoT device services (AWS IoT, Azure IoT, Arduino IoT, Thingspeak, MQTT,..)
• Extensive I2C (qwiic) device support
• Easy to extend and customize development

For further details, a detailed documentation for flux is provided here

Status

November 2024

The flux-sdk was developed as an internal tool initially, but is now being made public. The current functionality is a key component of several SparkFun products and relatively stable, but the sdk supporting functionality (documentation and examples) are in an alpha form at best.

Over the next several quarters improvements to the sdk include:

• Improved documentation on using the sdk, as well as adding functionality to it (device drivers for example)
• Remove any out of date remnants from the original version of the sdk - "spark" (which was started in 2020).
• Add support for additional platforms. Currently the focus is ESP32, but a Raspberry Pi RP2350 solution is being developed
• Add additional devices as needed.

Documentation

As noted above, the current documentation for the flux-sdk is located here