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Friend creates guitar tuner for the blind

Shared by Ana Ribeiro on 2021-01-12 11:26

About the solution

One of Iain’s friends and co-workers asked for his help in a project: being blind, the friend needed an adapted guitar tuner, that would give out audible signals. Most commercially available guitar tuners had an LED display or an LCD, making them useless for blind musicians.

Iain accepted the challenge and decided to modify a Cherub Guitar Mate WST-550G guitar tuner, adapting it to provide an audible output. Iain used and AVR microcontroller to reprogram the tuner and provide the sound. To make the process easier through hearing alone, Iain added a button that lets the user select which string the user wants to tune.

To tune, the user plucks and string and listens to the audio feedback. “A high pulsing note means the string is too high. A low pulsing note means the string is too low. A middle note means it is tuned correctly.“

The entire process is described in Iain’s personal website/blog, including a list of materials, circuit schematics, build notes and software files.

More information: http://www.lushprojects.com/guitartuner/

https://youtu.be/iMBsbtwIAzs

This solution shall not include mention to the use of drugs, chemicals or biologicals (including food); invasive devices; offensive, commercial or inherently dangerous content. This solution was not medically validated. Proceed with caution! If you have any doubts, please consult with a health professional.

About the author

Iain Sharp in an engineer with a passion for building and inventing things. At the request of a blind co-worker Iain created a modified guitar tuner that can be used by blind people because it provides an audible output instead of the typical visual cues.

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