TL;DR
The STM32H7 HDMI Board from Antmicro is an open hardware platform designed for rendering graphics on devices running the Zephyr Real-Time Operating System (RTOS). This board features the STM32H735 microcontroller, which is well-suited for applications that require low-power control alongside user-friendly graphical and audio interfaces. With its DSI/HDMI video output, it enables developers to create prototypes for a variety of smart devices ranging from HVAC control panels to vending machines.