But what if you could build one with for the cost of a pizza?
Trigger ADC with a timer at, say, 64× the sine frequency. Use dual regular+injected mode to sample two channels with known delay. Create A Low-Cost- High-Accuracy LCR Meter With An STM32 MCU
Apply a Discrete Fourier Transform (DFT) at the exact test frequency. This rejects noise and harmonics. But what if you could build one with for the cost of a pizza
Here’s a structured, engaging blog post draft for a project on building a . Build a Low-Cost, High-Accuracy LCR Meter with an STM32 MCU Stop guessing if that capacitor is still good. Build a lab-grade LCR meter for under $20. Apply a Discrete Fourier Transform (DFT) at the
If you repair electronics, design filters, or just sort through salvaged components, you know the pain: multimeters measure resistance OK, but capacitance? ESR? Inductance? For that, you need an LCR meter—and real ones cost $100–$500.
