Even cheap components can yield great results if you calibrate:
While original project files like schematics and source code are sometimes withheld by creators in early stages, community documentation on platforms like Hackster.io and Hackaday provides the theoretical foundation and block diagrams needed to recreate these tools. Create A Low-Cost- High-Accuracy LCR Meter With An STM32 MCU
provides real-time feedback of measured values and phase angles. Even cheap components can yield great results if
Auto-detect component type, show value + ESR or D factor. Create A Low-Cost- High-Accuracy LCR Meter With An STM32 MCU
Let's assume you are using an STM32F103C8T6 "Blue Pill" board.