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Guitar Tuner
For this project, I aimed to make a guitar tuner that would hear the pitch of a note and identify whether it was too sharp, too flat, or in tune. I also wanted to add the functionality of being able to cycle through the notes with a buzzer playing the corresponding frequencies.
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Guitar Tuner
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Low-fidelity design/sketch
The original sketch of how I intended the final design of the guitar tuner to appear. It has a section with the buzzer to play the standard tuning of a guitar, as well as a microphone with LEDs to react to input from user.
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Music not on LED grid
Testing some code and controlling the output of the LED grid for this project.
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Prototype with microphone
Testing the individual LEDs for mic sensitivity. Also used this setup to attempt to analyse the frequency; however, that did not end up working the way I intended.
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Arduino output - inconsistent
The screenshot shows the list of frequencies (Hz) picked up by the microphone when playing a single note. It should give a reading of around 82Hz every time (low E). I believe this limitation occurred due to the type of microphone I used.
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Prototype with buzzer
Prototype with the Arduino board to test the functionality of the passive buzzer to play the notes of a guitar with standard tuning.
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Final prototype - lower level of electronics
The final prototype for the guitar tuner. This is a photo of the lower level of electronics and wires, as well as the battery powering the device.
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Final prototype - upper level of electronics
The final prototype for the guitar tuner. This is a photo of the main elements of the device, that have been separated from the internal wiring.
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Final prototype - with cover
The final prototype for the guitar tuner. This is a photo of the tuner as it is to be used, with a decorative cover. Only the LED grid and functional button are shown for ease of use.
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