Leads to all the pins, and marked with the port number, convenient extension; BOOT boot mode hop cap switch, using ST official development board model; 1 working indicating lamp, for a simple demonstration program; Standard 20 pin JTAG socket can be connected to the ST, link, JLINK etc.; 8M crystal, the official parameters, chip with PLL frequency doubling, the highest frequency of 72M chip. 1. Material: FR4
2. Master control CPU: Cortex-M3 STM32F103ZET6
3. Highly open system, I/O development no limitation
4. Clear identification and convenient port, easy for MCU debug and test
5. Power supply switch: "5V DC" or "USB" With Power LED With User LED, easy to know the program running state With Rest button With user button With rocker (up, down, left, right, push-down)
6. 32.768K crystal oscillator, for built-in RTC use or calibration use
7. 8M crystal oscillator, dominant frequency can be set as 72MHz
8. SDIO port for Micro SD module, B-Bit I/O port, CAN port, SPI1 /SPI2 ports, I2C1 / I2C2 port, 8-Bit FSMC port, 16-Bit FSMC + SPI port, ONE-WIRE port, PS/2 port, USART1 port, USART2 port, 16-Bit FSMC port, USB port, 5V DC port, 5V/3.3V I/O port, MCU pin-out port, JTAG/SWD port
9. BOOT choose jumper wire, USB jumper wire, PS/2 port jumper wire, User LED jumper wire, VBAT choose jumper, 74LVC139 choose jumper11