STMicroelectronics P-NUCLEO-LRWAN2 and P-NUCLEO-LRWAN3 LoRa development packs

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STMicroelectronics has introduced two ready-to-use development packs that enable all types of users — from large corporations to smaller companies, independent designers, hobbyists and schools — to utilise LoRa’s long-range, low-power wireless IoT connectivity for tracking, positioning, metering and many other applications.

The two packs provide a complete LoRaWAN development chain including gateway and end-node boards, firmware and tools, leveraging ST’s convenient STM32 Nucleo evaluation boards. Catering separately for regions with 868/915/923 MHz and sub-550 MHz 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 onboard 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 visualise sensor data and control devices with the myDevices Cayenne for LoRa IoT Builder dashboard.

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

The P-NUCLEO-LRWAN2 pack is for high-frequency (868/915/923 MHz) ISM bands. It comes with the I-NUCLEO-LRWAN1 node expansion board designed by USI, which combines an STM32L0-powered module with ST’s sensor devices including the LSM303AGR MEMS e-compass (accelerometer/magnetometer), LPS22HB pressure sensor, and ST HTS221 temperature and humidity sensor. The P-NUCLEO-LRWAN3 pack for low-frequency (433/470 MHz) ISM regions comes with a node expansion board embedding the STM32L0-powered RisingHF module RHF0M003, together with an ST LSM6DS33D accelerometer, ST LPS22HB pressure sensor and HTS221 temperature and humidity sensor.

For more information: www.st.com/stm32-lrwan.