LC meter is one of frequent embedded projects. It is simply because most multimeters don’t have an inductance meter and sometimes capacitance. You can always buy a better one where you can find these features but why not to build one even with better characteristics you may need.
This LC meter operates as most LC meters – they are based on LC oscillator circuit. By measuring the frequency of serial or parallel LC circuit you can calculate unknown L or C value. As result this project is capable to measure inductance in range 0 nH to 10mH at resolution 2nH, capacitance from 0pF to 10uF at resolution 0.1pF. It has automatic calibration ability and autorange as well. This is great and practical project for any hobbyist.