Connect Arduino 1 with STM32 L072 Lora

This is the STM32L072 Lorawan board B-L072Z-LRWAN1 - STM32L0 Discovery kit LoRa, Sigfox, low-power wireless - STMicroelectronics and this is my arduino . SparkFun BlackBoard C - SPX-16282 - SparkFun Electronics. Since I use arduino libraries to read data from sensors (AS7265x) I need to pass these data to the Lorawan module board. I hope this is clear now. ask me any further info.
Thank Bye