The ARM Cortex-M3 processor has been developed to provide a low-cost platform that meets the needs of MCU implementation, with a reduced pin count and low power consumption, while delivering outstanding computational performance and an advanced system response to interrupts. The ARM Cortex-M3 32-bit RISC processor features exceptional code efficiency, delivering high performance which is expected from an ARM core in the memory size usually associated with 8-bit and 16-bit devices. The STM32F103 Performance Line family has an embedded ARM core and is therefore compatible with all ARM tools and software. It combines the high performance ARM Cortex-M3 CPU with an extensive range of peripheral functions and enhanced I/O capabilities. STM32-P103 is a good start-up board for learning the new ST Cortex-M3 based microcontrollers STM32F103RBT6. It has RS232, USB and CAN. The prototype area with all microcontrollers port near it allows you to easily implement your own schematics and add-ons.