How to control one STM32 using another STM32 via UART/USART?
I am trying to do control one STM32-L476RG using another STM32-L476RG via UART/USART. For now, I would like to turn on the LED of the "slave" STM32 using UART from the "master" STM32. Is that possible? If so, how? Thanks.