Guitar tuner on Edison

A quick post on what I have been working on. It is a guitar tuner using the Edison.

This application is written mainly in C (and little of C++). This application is built using the port audio library.

It has two modes of operation:

  • Visual mode
  • Audio mode

In visual mode, you select the target note by clicking the button.
The notes are cycled every button click.
In visual mode, the audio is recorded from mic and estimation is made
and closest frequency is matched and the back light changes to green
from red when the target note is matched.
Audio mode is entered by the long press of the button.
In audio mode, piano note as set in visual mode is played continuously
until button is clicked to exit the audio mode.

You can follow this Instructable  to build your own.

Here is the video of the device in action:


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s