Build a mini VU meter inspired project using NeoPixels and CircuitPython! Powered by the QT Py RP2040, use a PDM microphone to turn audio data into a dazzling display with NeoPixels!

3D print a snap fit case to house the electronics with the mic exposed in the back cover. The grid isolates the 16x NeoPixels and a piece of Black LED acrylic diffuses the LEDs.

Parts

Video of hand holding a QT Py PCB in their hand. An LED glows rainbow colors.
What a cutie pie! Or is it... a QT Py? This diminutive dev board comes with one of our new favorite chip, the RP2040. It's been made famous in the new
$9.95
In Stock
Adafruit PDM Microphone Breakout with JST SH Connector
An exotic new microphone has arrived in the Adafruit shop, a PDM MEMS Microphone! PDM is the 'third' kind of microphone you can integrate with electronics,...
$4.95
In Stock
LED RGB matrix 12" x 12" with "Adafruit Industries LED Matrix" text showing, and LED acrylic slowly covering to make it nicely diffused
A nice whoppin' slab of some lovely black acrylic to add some extra diffusion to your LED Matrix project. This material is 2.6mm (0.1") thick and is made of special cast...
$9.95
In Stock
Adafruit NeoPixel Digital RGB LED Strip with all the LEDs in a rainbow
So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips!These NeoPixel strips have 144 digitally-addressable pixel Mini LEDs...
$59.95
In Stock
10 wire Silicone Cover Stranded-Core Ribbon Cable
For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have Silicone Cover Ribbon cables! These may look...
$3.95
In Stock
1 x STEMMA QT / Qwiic Cable
JST SH 4-pin to Premium Male Headers Cable - 150mm Long

This guide was first published on Feb 01, 2022. It was last updated on May 24, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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