Documentation ¶ Overview ¶ This example tests the USART1 interface. The onboard USB to UART converter is connected to USART2 and used as system console (os.Stdin, os.Stdout, os.Stderr). To see something you need to connect an external USB to UART converter to D2 and D8 pins. Source Files ¶ View all Source files main.go Click to show internal directories. Click to hide internal directories.