STM32F103RCT6 core board V221205

1. Type-C connection, one-button serial port download, with a visible indicator light during the download process.
2. High-efficiency power supply, converting USB 5V to 3.3V, supporting up to 2A output, input protection, and overload protection, with a power indicator light.
3. All GPIO pins are output and have built-in protection.
4. 3.3V and 5V power supplies are output. The 3.3V power supply is for output only; the 5V power supply disables output when there is input and outputs when there is no input.
5. Includes two standard buttons, KEY1 and KEY2, readable by the STM32F103RCT6.
6. Includes an indicator light connected to one PWM interface of the STM32F103RCT6 and controlled by the STM32F103RCT6.
7. Includes a passive buzzer connected to one PWM interface of the STM32F103RCT6 and controlled by the STM32F103RCT6.
8. Includes a reset button and supports manual control of the BOOT pin level to configure the download mode.
9. Includes a wake-up button to wake the STM32F103RCT6 from sleep mode.
10. Includes an encoder/gear dial potentiometer, connected to one of the STM32F103RCT6's ADC interfaces for reading.
11. Supports SD card read/write.
12. Expands Flash, ROM, and Chinese character libraries.
13. GPIO interface spacing conforms to a multiple of 100 mil for easy connection to external development boards.