The X-NUCLEO-OUT01A1 is an Industrial Digital output expansion board based on ISO8200BQ for STM32 Nucleo boards. It provides an affordable and easy-to-use solution involving galvanic insulation embedded in industrial power switch driver applications. The Arduino™ UNO R3 connector compatibility allows to connect the following STM32 Nucleo development boards: NUCLEO-F103RB, NUCLEO-F302R8 and NUCLEO-F401RE. The X-NUCLEO-OUT01A1 can be connected to the X-NUCLEO-PLC01A1 to form a powerful industrial PLC with 8 inputs and 16 outputs. Wireless communication capabilities can be added with the X-NUCLEO-IDW01M1, which establishes communication on a smart device to manage the PLC remotely. A dedicated ST-PLC app is available for Android™ and iOS™ systems for this purpose. This evaluation board is designed to meet industrial standard requirements.