Low cost LoRa development packs

October 31, 2019 //By Julien Happich
LoRa development
STMicroelectronics has introduced two $99 ready-to-use development packs that enable all types of users from large corporations to independent designers or even schools to utilize the long-range, low-power wireless IoT connectivity provided by the LoRa protocol.

The two development packs provide a complete LoRaWAN development chain including gateway and end-node boards, firmware, and tools, leveraging ST’s convenient and proven STM32 Nucleo evaluation boards. Catering separately for regions with 868MHz/915MHz/923MHz and sub-550MHz ISM frequency bands, each pack includes proprietary gateway software and ST’s I-Cube-LRWAN end-node software. The node and gateway boards come with an antenna and on-board debugger. The LoRa gateway included in each pack is built with an STM32 Nucleo-144 development board, Nucleo-F746ZG, which contains an STM32F746ZGT6 microcontroller (MCU). Unlike with a commercial gateway, users can easily access device pins to assist development. The gateway acts as a basic packet forwarder to enable data coming from the development node to reach LoRaWAN network servers. ST has established agreements with LoRaWAN network-server providers Loriot, Actility, and The Things Network to let users connect their gateways to basic network-server capabilities free of charge. Users can also visualize sensor data and control devices with the myDevices Cayenne for LoRa IoT Builder dashboard.

Nodes are based on the Nucleo-L073RZ Nucleo-64 board built around the STM32L073RZT6 ultra-low-power MCU and come with a battery socket for easy mobility. Each pack includes a LoRa node expansion board, which contains an ultra-low-power STM32-powered module running an AT-command stack. A selection of motion and environmental sensors is also provided on-board.


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