The GD32F10x series is a 32-bit general-purpose microcontroller launched by GigaDevice, based on the ARM® Cortex®-M3 core with a maximum operating frequency of 108MHz. Equipped with zero-wait state Flash access technology, its execution efficiency is 30%-40% higher than similar products. It integrates on-chip Flash with a capacity of 16KB~1MB and SRAM with a capacity of 6KB~96KB. Rich peripheral resources cover GPIO, advanced/general/basic timers, 12-bit high-speed ADC/DAC, USART/UART, SPI/I2S, I2C, CAN 2.0B, USB 2.0 Full-Speed OTG, SDIO, 10/100M Ethernet, etc. It supports wide voltage supply of 2.6V~3.6V, industrial temperature range of -40℃~85℃, and I/O ports are compatible with 5V level. The product features low-power design (sleep/stop/standby modes) and complete security protection mechanisms, and is widely used in industrial control, consumer electronics, IoT terminals, smart meters, motor drive, communication equipment, security monitoring and other fields. It is a cost-effective and highly reliable core main control solution for embedded development, and the corresponding official manual version is GD32F10x_User_Manual_Rev2.9.