The STEVAL-ILL033V1 is a master/slave control unit for a multicolor LED matrix demonstration board based on the STM32F103VET6. It features a control unit with a PS2 keyboard interface for data entry, an LCD display for displaying text and background color options, and the ability to cascade 8 panels using a flat ribbon cable. It has 3 configuration modes: data entry, audio playback, or demonstration. The board is RoHS compliant.