The STMicroelectronics X-NUCLEO-PLM01A1 is an evaluation expansion board featuring the ST7580 Power Line Communication (PLC) modem. This interface board is designed for rapid prototyping and development of PLC applications. It leverages the ST7580 IC, a highly integrated analog front-end and data link layer controller, to facilitate communication over existing power grids. The X-NUCLEO-PLM01A1 acts as a plug-and-play expansion for STMicroelectronics' STM32 Nucleo development platforms, enabling seamless integration and testing of PLC functionalities. This solution is well-suited for applications in smart metering, building automation, and industrial control systems where reliable data transmission over power lines is critical. The board provides a robust platform for exploring the capabilities of STMicroelectronics' PLC technology.