B-L072Z-LRWAN1 open usart1 on STM32CubeExpansion_LRWAN_V1.2.1 project Posted by mazareth on 2019-01-24 14:26 I start with an easiest project. "End_node" It use USART2, work good. I try to send default UART by make change in B-L072Z-LRWAN1\Applications\LoRa\End_Node\Core\inc\mlm32l0xx_hw_conf.h But USART1 refuse to work... mlm32l0xx_hw_conf.h (5.84 Kb)