“STM32 + LoRa” Preparation & Config Parameters¶
LoRa Node 151 is based on STM32L151CCU6, Turtle Board is based on STM32L432KC, Our company is gradually replacing the IDE to STM32CubeIDE, which is the STMicroelectronics official just launched development tools for their own MCUs. Based on Eclipse, include code tracking, code completion, compilation, download, single-step debugging, and integrated with CubdeMX.
No matter what LoRa management platform is used, DevEui, AppKey, etc. parameters are must needed. And ensure that it is consistent with the relevant settings on the server.
The following parameters are essential for OTAA mode:
DevEui – Mote device IEEE EUI (big endian), 8 bytes;
AppEui – Application IEEE EUI (big endian), 8 bytes;
AppKey – AES encryption/decryption cipher application key, 16 bytes;
The following parameters are essential for ABP mode:
NwkSKey – AES encryption/decryption cipher network session key, 16 bytes;
AppSKey – AES encryption/decryption cipher application session key, 16 bytes;
DevAddr – Device address on the network (big endian), uint32_t;
A standard LoRaWAN gateway with at least 8 channels (based on SX1301/8 base band chip will be OK), and make sure your gateway had already connected to a LoRa server.
The LoRaWAN example code of LoRa Node is a STM32CubeIDE project, here is the basic config steps.
Download and install
.projectdocument, open project.
The first time you run, may have the following dialog box will, click Yes and then OK.
Modify macro definition: Set working bands、working mode and debugger.
REGION_EU868Set to the frequency band corresponding to
USE_DEBUGGER, default serial port(PA9-TX, PA10-RX) can print debugging information.
USE_DEBUGGER, debugging information will not be printed.
main.cfile according to your needs.
userChannelMask, access mode
overTheAirActivationand other parameter.
Write the data you want to send in
Now, if download the program into your board, if everything is normal, it should be able to run.