Arduino LC Meter With Frequency Measurement

This LC/Frequency meter is one of my most recent projects. It is based on the frequency counter on this site (

Here are a few pictures:

Full project details, schematics and the source code can be found on my website (AVR LC Meter With Frequency Measurement – Kerry D. Wong).

Nice meter--and nice blog. How did you enter the formulas into your post?

Thanks! There's a plugin for Wordpress called jsMath and if you write your formula in LaTex format they will be converted to images....