Build an Inductance Meter with Arduino Uno — LC Resonance Measurement Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Got a collection of salvaged inductors with no markings? Need to verify the value of a coil for a school project or a prototype? This kit turns an Arduino Uno into a practical inductance meter that reads values instantly on a crisp OLED display. By building the LC tank circuit from scratch and using zero-crossing detection, you’ll create a tool you can rely on for years — and understand exactly how it works.

What You'll Build

A compact, self-contained inductance meter that uses an LM393 comparator to detect the resonant frequency of an LC tank. The Arduino measures that frequency, then calculates inductance from the known capacitor value. The result appears in microhenries or millihenries on the 0.96-inch OLED, while an LED indicates a successful measurement. The crocodile clips let you hook up any through-hole or leaded inductor in seconds.

What You'll Learn

• How LC resonance works and how tank circuits sustain oscillation
• Zero-crossing detection and signal conditioning with the LM393 comparator
• Arduino coding for frequency counting and real-time inductance calculation
• Breadboarding and wiring a complete measurement instrument from scratch

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

If you’re a CBSE Class 11-12 student exploring alternating currents or a B.Tech ECE/EEE undergrad building your first instrumentation project, this inductance meter kit bridges theory and practice. ATL Tinkering Lab instructors can use it to demonstrate resonance, and Smart India Hackathon teams will find it handy for rapid inductor verification. Even a hobbyist with basic Arduino knowledge can assemble and calibrate it in an afternoon.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.