3.3.3 UART Connection

The WLR089U0 module exposes the UART on EXT1. This is useful for command line interfaces, debugging and application layer code.

The following table provides the UART signals pin description.

Table 3-7. UART Signals Pin Description
Pin on WLR089U0 Module FunctionShared Functionality
PA04UART_TXEDBG
PA05UART_RXEDBG