This isn’t just a demo, though; [Cliff] is writing up a complete tutorial for generating VGA on this chip. It begins with an introduction to pushing pixels, and soon he’ll have a walkthrough ...

The STM32F401 is the entry-level microcontroller in STMicroelectronics' high-performance STM32F4 series featuring the ARM® Cortex™-M4 32-bit/DSP core.