LoRa operability in other countries

[helixembedded]

Hello,

Our IoT product is LoRa based, and uses the STM32WLE5JC mcu. For the purpose of operability in several countries, we have used a Molex antenna, which operates in the frequency range 863MHz to 928 MHZ.

We're using the STM32CubeIDE for development, and firmware package STM32Cube FW_WL V1.3.0

1. In order for the device to be used in, say Japan for example, is it enough to simply set the active region to one of the values, as defined by the LoRaMacRegion_t struct in LoRaMacInterfaces.h?
2. For. the Japan usecase, would LORAMAC_REGION_AS923 be the most appropriate option? 
3. Are there any other values that need to be set when configuring for specific regions?

Thanks :)

[STTwo-32 · Accepted solution]

Hello @helixembedded 

1) To configure your module to work on Japan, you have to set the #define ACTIVE_REGION on the lora_app.h file of your project to LORAMAC_REGION_AS923.

2) Yes, LORAMAC_REGION_AS923 is the Band used in Japan.

3) Yes, you have to verify if there is any restriction on this country for the maximum TX_power values or the DR.

Best Regards.

STTwo-32