
STM32 Bluetooth, Ethernet, LTE Cat-M / NB-IoT starter kits for Amazon FreeRTOS
The combination of ST’s hardware products and Amazon FreeRTOS will ease the development of compact, low-power edge devices. Amazon FreeRTOS is based on the FreeRTOS kernel which has additional software libraries that make it easy to securely connect compact, low-power devices to AWS cloud services like AWS IoT Core or to more powerful edge devices running AWS IoT Greengrass.
The B-L475E-IOT01A Discovery kit uses Wi-Fi, multiway sensing, and an ultra-low-power ARM Cortex-M4 core-based STM32L475. The same kit supports LTE Cat-M/NB-IoT connectivity using an X-Nucleo Expansion Board hosting an LTE Modem and ST SIM Card, coupled via the Arduino Uno V3 connector present on the board.
For LTE Cat-M / NB-IoT network, ST has a cellular driver library that is architected to abstract the AT commands from a variety of modems with a BSP-like API. The board includes a state machine to manage the connection, exchange data and manage errors. It also includes GSMA TS34/35 subset that is required for cellular certification.
The kit can also be upgraded to Bluetooth Low Energy (BLE) 4.2 with SPBTLE-1S to create an IoT Node that connects to the cloud through the AWS smartphone and tablet app acting as gateway using ST’s beta support for Amazon FreeRTOS for BLE.
Wired connectivity is supported on NUCLEO-H743ZI, STM32 Nucleo-144 board featuring an ARM Cortex-M7 core-based STM32H743 MCU with support for Ethernet and expandable using the Arduino connector.
ST also supports AWS IoT Device Tester, a service aimed to assure full compliance with AWS Device Qualification Program. AWS IoT Device Tester allows ST and AWS shared customers to reduce test-infrastructure and test-suite development.
More information
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