Your source for daily hacks

Published on: September 14, 2013 / Comments: 1

Arduino Guitar Tuner (Frequency Detector)

...musical ability not included...

Here’s a project which rocks! nikoala3 made an Arduino Guitar Tuner based off of this Audino Frequency Detection project. Both projects are well documented so you just may learn something.

In her build nikoala3 shows you how you can take an AC signal and offset it using a voltage divider to bring it into the 0-5V range that the Arduinos Analog to Digital Convert (ADC) uses. The Arduino has a 10bit resolution but the project only uses the high 8 bits giving you a range of 0-255 counts.  The sketch detects the frequency at which the signal crosses a given threshold. Different strings produce different amplitudes so you have to tweak the threshold to where it works with all the strings on your guitar.

A few LEDs and one cool enclosure with a laser cut top really made this project pop. There is something really refreshing about finding well documented builds like this. Check out more build photos after the break.

 

  1. By guru post on April 1, 2014 at 10:13 pm

    […] Arduino Guitar Tuner (Frequency Detector) – Hackalizer http://hackalizer.com/Here's a project which rocks! nikoala3 made an Arduino Guitar Tuner based off of this Audino Frequency Detection project. Both projects are well documented so you just may learn something. In her build nikoala3 shows you … […]

Leave a Reply

Some HTML is OK