The Raspberry Pi has been the basis for many cool projects. Even so, Models A and B have been criticized for having only a handful of GPIO pins available. Sure, the new Model B+ has a 40-pin GPIO ...

The bootloader was developed for STM32VLDISCOVERY board, the only extra thing needed is an USB-UART module on PA10 (RX) and PA9 (TX) pins. Figure 1. Pinout of the system. After start-up, the system ...