Скачать или смотреть Guitar Tuner using SparkFun Sound Detector and Pimoroni Galactic Unicorn (RGB LED display)

This is a test of a guitar (instrument) tuner using autocorrelation. A YouTube video is used as a substitute for a bass guitar and the sound is picked up by the electret microphone on a SparkFun Sound Detector soldered onto the Pi Pico W on a Pimoroni Galactic Unicorn. The values are read continuously from the GPIO/ADC using DMA.

There is also a quick demo of the other spectrum analyser code based on Pimoroni's beta code at the start of the video. The small coin underneath is there to allow the A button to be pressed from the front to change mode.

0:00 Spectrogram
0:09 Rainbow spectrum analyser
0:18 Classic spectrum analyser
0:26 Instrument tuner

The BOSS Tuner app running on an Android tablet is shown for comparison. The Korg Volca Bass isn't doing anything in this video.

Bass guitar tuner video (with two slightly distorted notes):    • Bass Tuner - Standard Bass Tuning (E A D G...  

Instructables article describing the Guitar Tuner and Audio Spectrum Analyser: https://www.instructables.com/Making-...

Instructables article for adding a microphone to Space Unicorns: https://www.instructables.com/Adding-...