Hackaday Alum [Phil Burgess] developed the device using an RGB LED matrix, microphone, and an Arduino.

This microphone-shaped piece of circuitry was made with Arduino compatibility in mind, which means that voice search is just the beginning.

Using Arduino’s recently introduced Giga R1 WiFi CPU board and need a human interface? The Giga Display Shield (plug-in board) might fit the bill. It adds a 3.97inch 480 x 800 RGB touchscreen, digital ...

With his project, a 3-axis Open Source FFT Spectrum Analyzer he is not only entering the Hackaday Prize 2016 but also the highly contested field of acoustic defect recognition.