Martin has been following the #AdaFruit example of FFT ( fast Fourier transform) to convert the microphone input into a visual representation (spectrum) with great results! The code for this can be downloaded here
Week 5: FFT Waterfall
Martin has been following the #AdaFruit example of FFT
![](https://digital-maker.co.uk/wp-content/uploads/2022/04/week6.jpg)