A Microcontroller-Based Integrable Core System for Data Acquisition Devices

In this study, we developed core system software for a microcontroller-based, low-cost data acquisition system, along with the necessary environmental software. The system includes an analog-to-digital converter, digital inputs/outputs, pulse-width modulation, and a counter, supporting data transmission via USB 2.0 full-speed. We also designed flexible and easily configurable firmware to enable synchronization with external devices, making the system highly adaptable for applications such as laboratory research setups or scientific instrumentation. We created the schematic and printed circuit board for the core system, which is based on a 32-bit ARM Cortex-M4F microcontroller. In addition, we measure the signal-to-noise and distortion of the analog-to-digital converter to evaluate its conversion capability.