Use a UART-USB Bridge (e.g. from FTDI), available as module (
example). Connect RX (left side of controller) to RX of the module, connect USB side of the module to the PC. On the Windows side the data is accessible via a
virtual COM port. The required driver is usually automatically installed by Windows upon connection to such a module. In some cases manual installation of the matching driver software is required.
However, you will not be able (at least not in a simple manner) to display data within notepad (that would require additinal programming). A
terminal emulator is the usual way to display UART data on a PC.