Description
1. STM32F103RCT6: the high performance STM32 MCU in LQFP64 package which features
* Core: ARM Cortex-M3 32-bit RISC;
* Operating Frequency: 72MHz, 1.25 DMIPS/MHz;
* I/Os: 51;
* Operating Voltage: 2-3.6V;
* Memories: 256kB Flash, 48kB RAM;
* Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2S, 2 x I2C, 1 x SDIO, 1 x USB, 1 x CAN;
* AD & DA converters: 3 x AD(12-bit, 1s, shares 16 channels); 2 x DA(12-bit);
* Debugging/Programming: supports JTAG/SWD (serial wire debug) interfaces, supports IAP;
2. AMS1117-3.3V: 3.3V voltage regulator;
3. Power supply switch: 5V DC or USB;
4. Power indicator;
5. LEDs: Convenient for indicating I/O status or program debugging running state;
6. Reset button;
7. User key;
8. Joystick: Convenient for I/O input (five positions);
9. 32.768K crystal oscillator: used for internal RTC, also supports clock calibration;
10. 8M crystal oscillator: enables the MCU run at 72M frequency by frequency multiplication;
11. SDIO Interface: connects to the Micro SD adapter easily, It is much faster to read/write the Micro SD card via SDIO than via SPI;
12. 8-Bit I/O Interface: easily connects to keypad, motor, etc;
13. CAN Interface: communicates with accessory boards which feature the CAN device conveniently;
14. SPI1 / SPI2 interface:
* Easily connects to SPI peripherals such as FLASH (AT45DBxx), SD card, MP3, etc.;
* Convenient for connecting AD, DA module, thanks to the SPI1 alternative function – AD&DA;
15. I2C1 / I2C2 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.;
16. LCD Interface: easily connects to the touch screen LCD;
17. ONE-WIRE Interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
18. PS/2 Interface: easily connects to PS/2 keyboard or mouse;
19. USART1 Interface: easily connects to RS232, RS485, USB TO 232;
20. USART2 Interface: easily connects to RS232, RS485, USB TO 232;
21. USB Port: USB communication between board and PC;
22. 5V DC jack;
23. 5V/3.3 V power input/output: usually used for power output, or common ground with other user board;
24. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion;
25. JTAG/SWD interface: for debugging/programming;
26. Boot Mode Selection: for configuring the BOOT0 and BOOT1 pins.
