IF you have STM32 microcontroller board and wandering what it is capable of then you should check out this fully autonomous computer. Its brain is SMT3210E-EVAL board based on STM32F103ZET6 ARM Cortex-M3 microcontroller. Computer supports PS/2 keyboard input and outputs stream to VGA display. Since generating VGA chews significant amount of resources there is a Propeller microcontroller dedicated for this.
Other features include: 1MB of external RAM, TCP/IP with ENC28J60 Ethernet to SPI bridge, wireless interface with nRF24L01 chip, microSD storage, connector for extension boards like ADC, SPI, I2C, UART, CAN etc. and PWM based simple sound. Computer is capable to run eLua sources with many cool apps base. Source files can be run from storage or simply edited directly inside built-in browser. Probably hard to mention all features of it so video should be pretty self explanatory.