The STEVAL-PCC009V4 is a demonstration board based on STM32 that is used as an interface between PC and motor control systems. It has an 8-pin interface for SPI/I2C/UART and 6 GPIOs. Opto-isolation is used for SPI, USART, and GPIOs, while magnetic isolation is used for I2C. The board complies with RoHS.