The STM32+LR1121 is LoRa & LoRaWAN solution development board based on the Semtech’s latest-generation LR1121 multi-band LoRa transceiver, and controller STM32L476RGT6 32-bit MCU, It supports Sub-GHz, 2.4GHz, and S-band (1.9–2.1GHz) communication, meeting the diverse requirements of IoT applications, it is intended to be a quick developments solution that needs LoRa/ LoRaWAN.

Firstly the LoRa vs LoRaWAN is different, basically the LoRa is a Physical l layer protocol, while the LoRaWAN is protocol layer, based on LoRa, check here for the detailed. Common LoRa module such as the SX1262 act as a LoRa sender& receiver, if you want to run LoRaWAN protocol with SX1262, you will have a run the protocol on your controller, which requires high internal RAM/Flash, and need high programming skills. Makerfabs Agrosense series solves this by ASR6601 solution, but that coding works would be difficult for none-professional developers, can be only for enterprise developments.

The latest Samtech’s LR1121 solves this by its internal processor with build-in LoRaWAN protocol, that external processor(STM32 on this board) do not need to run LoRaWAN-related protocol, but just manipulate the LR1121 for LoRaWAN connection/data communication, via standard SPI. This greatly reduce the difficulty of LoRaWAN project development, user can concentrate on the local sensors/ actuators usage.

Of course we will not only provide you a demo board and leave our customer there to study the huge amount of development files, Makerfabs made detailed step-by step usage guide on this solution, for these uses to quick understand/learn how to make this, include:

• How to create a LoRa(P2P) communication between 2 LR1121 boards.
• How to create a LoRa(P2P) communication between LR1121& SX1262 boards.
• How to create a LoRaWAN project( get the local sensor data and report to LoRaWAN cloud TTN/ Thingspeak) with this board. (with a set of unique Deveui/Appeui/Appkey,authorized by IEEE for customer usage, for free.)

As you got the solution works OK on your hand and if you ready to begin your project, Makerfabs provide hardware ODM service.

Package List

• STM32+LR1121 development board with Lora antenna(868M/915M) and 2.4G antenna *1
• STM32 STLink tool for DFU *1