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About STM32 board: - This board is very suitable for learners that want to learn STM32 microcontroller with ARM Coretex-M3 32-bit core. - On-board SWD interface£¬ and it can be programmed with ST-LINK V2. - On-board reset button and power indicator LED. - On-board test indicator LED£¬ and the beginners can program to control it. - On-board 100ma 3.3V Regulator. - All GPIO are led out and the names of the pins are marked¡£ - Microcontroller: STM32F103C8T6. - Burning times: 10k cycles - Operating voltage: 3.3 V. - IO logic voltage: 3.3V - Digital I/O Pins: 37. - Analog Input Pins: 10 (12bits). - Flash Memory: 64KB. - RAM: 20KB. - Programmable Clock Speed: 72 MHz (MAX). About the ST-LINK V2: - Only U disk size and compatible with official ST-LINK V2. - Support official firmware upgrade£¬ support all series of STM8 (SWIM interface)£¬ STM32(SWD interface). - Two-channel power output 5V / 3.3V and easier to use. - On-board 500mA resettable fuse£¬ short-circuit protection. - Output diode in series with£¬ reverse connection protection. - Support simulation debugging£¬ running at full speed£¬ single step£¬ breakpoint debugging£¬ view IO status and the variable data. - Support IDE and software tools: STVD V4.2+ STVP V3.2+ IAR-EWSTIM8 V1.3+ KEIL MDK V4.2+ IAR-EWARM V6.2+