16
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...
Out of Stock
For those who are fans of our silicone-covered wires but are always looking to up their wiring game. We now have...
Out of 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...
$16.95 each
In Stock
Page last edited July 16, 2025
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