Embedded software bolsters connectivity choice for IoT device developers

From STMicroelectronics comes an extended STM32 ecosystem with a Sigfox package that simplifies development and gives extra flexibility to connect Internet of Things (IoT) devices to long-range, low-power wireless networks.

The new X-Cube-Sfox package is ready to use with ST’s B-L072Z-LRWAN1 Discovery Kit, which is already LoRa enabled through I-CUBE-LRWAN embedded software.

Developers can now work with either of these established low-power wide area network (LPWAN) technologies on the same hardware, and create products that can use the two protocols individually or alternatively.

The Discovery Kit features the Murata CMWX1ZZABZ-091 module powered by an STM32L072 microcontroller, a sub-GHz radio transceiver SX1276 from Semtech, and is expandable via Arduino headers to add sensors or other IoT-device functions and capabilities.

X-Cube-Sfox contains a complete set of Sigfox libraries and application examples for the STM32L0, and can be ported to other microcontrollers in the STM32 family.

With more than 700 STM32 variants, from ultra-low-power to high-performance lines, developers can leverage unrivaled flexibility to optimise the performance and features of IoT devices that take advantage of Sigfox services including basic connectivity, radio recognition, and GPS-free location.

The software’s low memory footprint and efficient use of CPU can help minimise demand for system resources, helping to lower bill-of-materials costs and power consumption.

The X-Cube-Sfox software can be downloaded free of charge. The B-L072Z-LRWAN1 Discovery Kit is priced at $46.50.

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