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.
| Pin on WLR089U0 Module | Function | Shared Functionality |
|---|---|---|
| PA04 | UART_TX | EDBG |
| PA05 | UART_RX | EDBG |