LC meter (DIY project)

Contains adsIn-app purchases
3.7
117 reviews
10K+
Downloads
Content rating
Everyone
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About this app

This app will help you to measure, inductance, capacity, and resonance frequency. This is a wireless LC meter


Use this app is easy, you just need build a small circuit (easy to build) and connect to the circuit capacitor or inductance you need measure, put your smartphone near from this LC meter circuit choose what you want measure, inductance or capacitor and press play button in the app. The app will detect sound frequency from buzzer and will show value.

LC meter range:


Inductance - from 100uH to 100mH
Capacitor - from 10nF to 10uF

If you need an cheap and easy to build LC meter, this app good solution for you. Also you can improve the circuit by adding different reference value capacitors an inductance.

Components you need to build the circuit:


1 - Capacitor C1, C2, C3, C4 - 470nF
2 - Inductance 10mH
3 - Transistors Q1, Q2 - BC557
4 - Resistance R1 - 10K
5 - Resistance R2 - 100
6 - Resistance R3 - 220K
7 - Resistance R4 - 5.1K
8 - Switch (3 pines)
8 - Buzzer

You can find more information about this inductance meter - resonance finder on my web page!

Updated on
Feb 18, 2022

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
No information available
3.7
117 reviews
A Google user
May 26, 2019
It does NOT pick up the resonant frequency of anything. Appears to all be random numbers.
3 people found this review helpful
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NECO
May 26, 2019
First make sure your smartphone detect the connecter and put volume to little bit less than half. If you get random numbers some thing with minijack connection
Wilson Mwamba
April 13, 2022
It's good,,how do you,,use it.
1 person found this review helpful
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A Google user
June 26, 2019
5 to yt
2 people found this review helpful
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What's new

Bugs fixed