# tttapa/Control-Surface

Arduino library for creating MIDI controllers and other MIDI devices.

Repository: https://github.com/tttapa/Control-Surface
Canonical: https://ross.abutalabs.com/products/control-surface
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: arduino, arduino-library, midi-controller, control-surface, midi, midi-over-usb, teensy, esp32, raspberry-pi-pico, ble-midi, usb-midi
Last push: 2026-06-06T18:06:22+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 86, release rhythm 63, longevity 100
- inputs: {"age_days": 3285, "days_push": 88, "days_rel": 88, "gap_med": 114, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1655, forks 166 (observed 2026-08-28T04:05:17.859203+00:00)

## What it is
An Arduino C++ library for building MIDI controllers and control surfaces, with a flexible MIDI abstraction layer supporting 5-pin DIN, USB, and BLE MIDI. It provides ready-made utilities for potentiometers, buttons, encoders, LEDs, displays, and port expanders like multiplexers and shift registers.

## Use cases
- build a diy midi controller with arduino
- read potentiometers and send midi cc messages
- create a midi control surface for a daw
- send and receive midi over usb or ble on esp32
- drive leds and displays from incoming midi messages
- expand gpio with multiplexers and shift registers for many controls

## When to choose
- you're building a MIDI controller or control surface on Arduino, Teensy, ESP32, or RP2040
- you need a unified API across DIN, USB, and BLE MIDI interfaces
- you want high-level abstractions for buttons, faders, encoders, and MIDI feedback

## When to avoid
- you need a general-purpose MIDI sequencer or DAW software rather than hardware controllers
- your project isn't on a supported Arduino-compatible board
- you need non-MIDI embedded audio processing

## Facets
- artifact type: library
- maturity: active
- function: sdk, embedded, middleware
- domain: embedded-systems, hardware, developer-tools
- platform: embedded, iot, cpp
- tags: midi, arduino-library, midi-controller, usb-midi, ble-midi, teensy, esp32, raspberry-pi-pico, control-surface, audio-hardware, audio

## Member repositories
- tttapa/Control-Surface (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:17.859203+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:53.946160+00:00, confidence not recorded.
  - readme: https://github.com/tttapa/Control-Surface (fetched 2026-08-28T04:05:17.859203+00:00, sha 8ba98623eb01)
- Data as of 2026-08-30T08:39:29.467469+00:00.