67
Intermediate
Project guide
Overview
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.
List of parts from the Adafruit shop.
Featured
Adafruit QT Py RP2040
What a cutie pie! Or is it... a QT Py? This diminutive dev board comes with one of our new favorite chip, the RP2040....
$9.95 each
In Stock
An exotic new microphone has arrived in the Adafruit shop, a PDM MEMS Microphone! PDM is the...
$4.95 each
In Stock
A nice whoppin' slab of some lovely black acrylic to add some extra diffusion to your LED Matrix project. This material...
$9.95 each
In Stock
So thin. So mini. So teeeeeeny-tiny. It's the 'skinny' version of our classic NeoPixel strips!These...
$59.95 each
In Stock
For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have...
$3.95 each
In Stock
This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and...
$0.95 each
In Stock
Totaling 380 pieces, this M2.5 Screw Set is a must-have for your workstation. You'll have...
$16.95 each
In Stock
Page last edited March 03, 2026
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