Core features 10channel ADC module uses the internal 10channel ADC resources of the STM32F103 series as the sampling core. It transfers the acquired sampling data to internal memory via the STM32 to reduce CPU load and enhance the stability and accuracy of AD sampling. The onboard USBtoserial bridge transfers data to the host computer. Onboard STM32F103C8T6 master chip and CH340 USBtoserial chip. This setup makes it easy to view AD sampling results on a PC via USB. A reserved UART serial communication interface is available for connection to other MCUs. Analog input: 10channel singleended input. Sampling voltage input range: 0 to 3.3 V. Power supply: 5 V or 3.3 V. Technical specifications at a glance Analog inputs: 10 channels, singleended Input voltage range: 0–3.3 V Power supply options: 5 V or 3.3 V Core processing: STM32F103 series 10channel ADC resources with internal memory transfer via STM32 Communication: USB via CH340 USBtoserial chip; reserved UART interface for MCU connection Applications and use scenarios Multichannel data acquisition for development and testing: collect multiple analog signals with reduced burden on the main processor, enabling more stable and reliable sampling in measurement rigs and test benches. PCbased monitoring and data logging: connect via USB to view live AD results on a PC or log data for analysis without additional bridging hardware. Embedded system prototyping and educational projects: easy integration with other MCUs through the reserved UART interface, ideal for teaching ADC concepts and rapid prototyping of sensor interfaces. Sensor monitoring in smallscale projects: support for direct 0–3.3 V sensor outputs with straightforward power options (5 V or 3.3 V) for compact, selfcontained measurement solutions.