STM32WL55 LORA Ping pong example

This is an example of LORA communication between STM32WL55 cards, and the frequency band of 868 ~ 928Mhz is used.
Long-distance wireless communication of up to 30Km is possible, and it has advantages in space, low power, and price compared to the structure that generally uses SX1276 + separate MCU.

Related hardware kits can be purchased from the Naver Smart Store.

Purchase Link : naver smart store

You can purchase it by contacting sales@axden.io

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STM32WL55 LORA Ping pong terminal

baudrate : 9600

TX

RX

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STM32WL55 Radio setup

SubGHZ-Phy / App / subghz_phy_app.c

#define REGION_AS923

#if defined( REGION_AS923 )

#define RF_FREQUENCY                                923000000 // Hz

#elif defined( REGION_AU915 )

#define RF_FREQUENCY                                915000000 // Hz

#elif defined( REGION_CN470 )

#define RF_FREQUENCY                                470000000 // Hz

#elif defined( REGION_CN779 )

#define RF_FREQUENCY                                779000000 // Hz

#elif defined( REGION_EU433 )

#define RF_FREQUENCY                                433000000 // Hz

#elif defined( REGION_EU868 )

#define RF_FREQUENCY                                868000000 // Hz

#elif defined( REGION_KR920 )