LoRa is a wireless communication technology developed to create the low-power, wide-area networks (LPWANs) required for machine-to-machine (M2M) and Internet of Things (IoT) applications (see this short PDF).
LoRa is a spread-spectrum technology with a wider band (usually 125 kHz or more).
It’s frequency-modulated chirp utilizes coding gain for increased receiver sensitivity. (From: LinkLabs)
Key features of LoRa technology:
Long range: > 15 km/9mi range
Low-power: 5-10 year expected battery lifetime
Low-cost: from end-node sensor cost to upfront infrastructure investment
Secure: with embedded end-to-end AES-128 encryption of data
Geolocation: enables indoor/outdoor tracking without GPS
LoRaWAN™ is a global LPWAN specification created by the LoRa Alliance™ to drive a single standard for seamless interoperability across the industry.
LoRa technology is ideally suited for the applications:
Smart Home and Building
Retail and Logistics
As a board member and sponsor of the LoRa Alliance, ST offers an affordable and easy-to-use set of hardware tools dedicated to the evaluation and development of LoRa solutions.
The STM32 Nucleo pack for LoRa™ technology and high-performance FSK/OOK RF transceiver modem (P-NUCLEO-LRWAN1) combined with the LoRaWAN software expansion package for STM32Cube (I-CUBE-LRWAN) is the quickest way to build a LoRaWAN end-node device.
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In Italian Language
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- P-NUCLEO-LRWAN2 P-NUCLEO-LRWAN3
The P-NUCLEO-LRWAN2 STM32 Nucleo starter pack for LoRa® technology and high-performance (G)FSK/OOK/(G)MSK modulations is a development tool to learn and quickly develop low-power wide-area network (LPWAN) solutions.
The pack contains both an LPWAN end-node and its related gateway.
It is compatible with various LoRaWAN® network server providers.
P-NUCLEO-LRWAN2 is intended for countries granting radio-communications access in frequency bands higher than 800 MHz.
P-NUCLEO-LRWAN3 is same of the above but for 500MHz.
I-CUBE-LRWAN – LoRaWAN software expansion for STM32Cube (UM2073)
- P-NUCLEO-LRWAN1 – The KIT for make a LoRaWAN™ node.
This KIT contain two boards that are:
- I-NUCLEO-SX1272D (expansion board based on Semtech SX1272MB2xAS)
This tool, in association with the certified embedded software solution (I-CUBE-LRWAN), provides the means to set up a complete LoRaWAN™ node compliant with class A, based on the Semtech SX1272MB2xAS LoRa™ extension board.
The SW for LoraWAN is: I-CUBE-LRWAN
See the: UM2085 Ultra-low-power STM32 and LoRa® Nucleo pack with NUCLEO-L073RZ board and I-NUCLEO-SX1272D RF expansion board
See this video.
Please, see this short PDF
- KIT for make a test on Lora SX1272.
The kit is made using the following evaluation boards.
The software ready to use for mBED is here and the explanations are here.
Thank to mbed it is very easy to transfer this SW on other STM32.
- B-L072Z-LRWAN1 – STM32L0 Discovery kit LoRa, low-power wireless
The B-L072Z-LRWAN1 LoRa®Discovery kit is a development tool to learn and develop solutions based on LoRa®and FSK/OOK technologies.
This Discovery kit features an all-in-one open module CMWX1ZZABZ-091 (by Murata).
The module is powered by an STM32L072CZ and an SX1276 transceiver.
The transceiver features the LoRa®long-range modem, providing ultra-long-range spread spectrum communication and high interference immunity, minimizing current consumption.
Since CMWX1ZZABZ-091 is an open module, user has access to all STM32L072 peripherals such as ADC, 16-bit timer, LP-UART, I2C, SPI and USB 2.0 FS (supporting BCD and LPM).
The B-L072Z-LRWAN1 Discovery kit includes an ST-LINK/V2-1 embedded debug tool interface, LEDs, push-buttons, antenna, Arduino™Uno V3 connectors and USB OTG connector in Micro-B format.
The LoRaWAN™stack is certified class A and C compliant.
It is available in I-CUBE-LRWAN firmware package.
Several examples, as an AT-command stack, Ping-Pong, etc, are available to help users setting up a complete LoRaWAN™node.
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- PingPong test based on:
STM32 (NUCLEO-F401RE) + LoRa (Semtech – SX1272 – I-NUCLEO-SX1272D) under mBED
The ready to use kit is: P-NUCLEO-LRWAN1
If one just takes the radio part of the kit is: I-CORE-SX1272D
- STM32H7, LoRA Demos Draw a Crowd at ARM TechCon
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