STMicroelectronics X-NUCLEO-OUT01A2 Digital Output Expansion Board is an industrial digital output expansion board for STM32 Nucleo boards and is based on ISO8200BQ solid state relay. This expansion board interfaces directly with the microcontroller on the STM32 Nucleo driven by GPIO pins and Arduino® R3 connectors. The X-NUCLEO-OUT01A2 expansion board offers an environment for evaluating the diagnostic and driving proficiencies of ISO8200BQ in a digital output module connected to 0.7A industrial loads. This expansion board can connect to NUCLEO-F401RE and NUCLEO-G431RB STM32 Nucleo development boards. The X-NUCLEO-OUT01A2 expansion board is CE-certified, RoHS compliant, and China RoHS compliant.