Accessible Guitar Tuner 

Accessible Guitar Tuner

Accessible Guitar Tuner

Guitar Tuner for Blind Guitarist

This is a tuner that is made specifically for blind people. It uses audio feedback to tell you if a string is too high or too low.

How does it work?

After turning it on, the tuner will be set to the low E string. Holding the button cycles through all 6 strings in standard guitar tuning. A pattern of beeps is played continuously. Low-high indicates the string is too low. High-low indicates the string is too high. A single beep indicates the string is tuned.


The current prototypes are circuit boards slightly smaller than a credit card. Going around the edge clockwise there is a 9V battery connector wire(bottom left), the power switch(left), a push button for changing the current string, a piezzo buzzer(top left), the microphone amplification circuit(top right), the microphone(right), the microcontroller(bottom right), a 6-ping programming header(bottom), and then we're back at the start. In the middle is a voltage regulator for powering the microcontroller.
Source: Accessible guitar tuner from pepijndevos on Tindie


The North Carolina Assistive Technology Program (NCATP) leads North Carolina's efforts to carry out the federal Assistive Technology Act of 2004. We promote independence for people with disabilities through access to technology. Visit our website at
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