14
Intermediate
Project guide
Overview
Make your own 16-step MIDI sequencer for real-time synthesizer jams! This CircuitPython-powered project uses a QT Py RP2040, four Adafruit seesaw-based Quad Rotary Encoder breakouts for note input/mutes, and a set of NeoPixel sticks for display indicators.
Double-click the first encoder knob to enter settings mode where you can:
- adjust the tempo
- pick octaves
- transpose keys
- select scale modes
- dial in velocity
- randomize notes and mute states
Plug the Knobby Sequencer into any computer software synth, or hardware synthesizers that support USB MIDI Host mode.
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
Four (4) each of:
Rotary encoders are soooo much fun! Twist em this way, then twist them that way. Unlike potentiometers, they go all the way...
$7.50 each
In Stock
Six (6) each of:
Make your own little LED strip arrangement with this stick of NeoPixel LEDs. We crammed 8 of the tiny 5050 (5mm x 5mm) smart...
$5.95 each
In Stock
Rotary Encoder + Extras
(×16)
This rotary encoder is the best of the best, it's a high-quality 24-pulse encoder, with detents and a nice feel. It is...
$4.50 each
In Stock
Have you found yourself in a maze of twisty-turny knobs, all alike? These micro potentiometer (or rotary encoder) knobs...
$2.95 each
In Stock
Have you found yourself in a maze of twisty-turny knobs, all alike? These micro...
$2.95 each
In Stock
Have you found yourself in a maze of twisty-turny knobs, all alike? These micro...
$2.95 each
In Stock
Have you found yourself in a maze of twisty-turny knobs, all alike? These micro potentiometer (or rotary encoder) knobs...
$2.95 each
In Stock
This 4-wire cable is 50mm / 1.9" long and fitted with JST SH female 4-pin connectors on both ends. Compared with...
$0.95 each
In Stock
This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends....
$0.95 each
In Stock
Here is a cute, minimal snap-on mount for your QT Py to keep it...
$2.50 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...
$4.25 each
In Stock
Keep your electronics from going barefoot, give them little rubber feet! These small sticky bumpers are our favorite...
$0.95 each
In Stock
Totaling 380 pieces, this M2.5 Screw Set is a must-have for your workstation. You'll have...
Out of Stock
Page last edited July 16, 2025
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