Specification: Origin: Mainland China Core: ARM Cortex-M3 Working frequency: 72MHz Memory: 64K or 128K bytes of Flash program memory, up to 20K bytes of SRAM DMA: 7-channel DMA controller Supported peripherals: timer, ADC, SPI, I2C, USART Product size: 54.00x21.00x14.00mm/2.13x0.83x0.55inch Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Module 1. Powerful Processing Capability: core learning board system development module utilizes ARM Cortex-M3 core with a high frequency of up to 72MHz, providing robust processing power and high performance. It can handle complex computational tasks and control operations, making it suitable for various embedded systems and applications. 2. Versatile Interfaces and Expandability: The minimum system development board offers a wide range of interfaces and expandability options, including digital I/O pins, analog input pins, UART, SPI, I2C, PWM, etc. This allows users to conveniently connect various sensors, displays, peripherals, and expansion modules, enabling diverse applications and projects. 3. Multiple Memory Options: minimum system development board supports various memory options, including flash and SRAM. This enables users to choose the appropriate memory type based on project requirements for storing and retrieving data. 4. Abundant Software Support: minimum system development board provides extensive software support, including the official development toolchain (such as STM32CubeIDE), library functions, and sample codes. This facilitates developers in quickly prototyping, developing, and debugging projects. 5. Low Power Design: minimum system development board incorporates a low power design with excellent energy efficiency. It can operate in low power modes, extending battery life, making it suitable for low power applications that require long-duration operation.