Tuner using PedalShield

8 years 3 weeks ago #472 by jerpint
Hey everyone, I am new to the pedal shield, I am wondering if anybody has tried turning it in to a tuner? I haven't found a related topic in the forums.



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8 years 3 weeks ago #473 by Ray
Replied by Ray on topic Tuner using PedalShield

I remember reading a great explanation of how a guitar tuner works in the Electronics for Guitarists book by Denton J. Dailey.

There are different approaches to do it with arduino:
- The most simple could be applying a big gain to the signal to make it square type and then measuring the time the signal stays high and then change to low.
- I have also read some people talking about doing FFT so you can measure the main frequency of the signal.

Nobody did a pedal like this before but I reckon that is a great idea, if you star doing a quick search in google "guitar tuner arduino due" you can get some background and ideas to start with.

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