PATS MP-16 DIY kit

Description

Build it. Play it. Make it yours.
The PATS MP-16 is a 16-key, RGB-lit MIDI macropad you assemble yourself. It’s preflashed with open-source chord-playing firmware (on GitHub) so you can start making music right away — each key can trigger rich, customizable chords with up to 8 voices. Save your favorites to 4 onboard presets and connect to any DAW, synth, or MIDI device via USB or TRS MIDI.

What’s in the box

• Partially pre-assembled PCB with Waveshare RP2040 Zero, hotswap RGB sockets, MIDI TRS In/Out, LiPo charging circuit

• 17 Cherry MX-compatible switches (brown)

• 18 keycaps (17 + 1 spare)

• Rotary encoder + cap

• 0.96″ SSD1315 OLED display

• Mounting screws

You will need

• 3D-printed case (STL files included)

• LiPo battery (102050 3.7V 1000 mAh recommended)

• Basic tools (soldering iron, screwdriver, 3D printer)

Features

• Play instantly – Preloaded firmware with chord generator

• Customizable – Adjust scales, intervals, octaves, and velocity on-device

• Save & recall – Four onboard presets for fast switching

• Universal connection – USB MIDI or Type-A TRS MIDI

• DIY assembly – Solder OLED and encoder, snap in keys, print your own case

Hack it your way

• Modify the firmware or write your own for the RP2040

• Add knobs, sensors, or other inputs via 3 ADC-compatible pins on the PCB

• Swap the OLED for other I2C-compatible displays

• Reimagine the casing with the included STL files

• Turn it into anything from a simple MIDI utility box to a generative sequencer