v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · Full Diagonals joystick mode · physical approval for Bluetooth configuration and USB firmware updates
Firmware Catalog
Firmware versions
Each model has its own pin map — download the .bin that matches your controller, then flash it from Configure → Firmware. The stable release is selected by default. Beta builds are opt-in and should be used with the beta configurator. Flashing the wrong model can leave controls on the wrong GPIOs.
01 // Current release
Updating from firmware 2.6.0 or newer? During normal operation, hold Button 1 for three seconds, then release before starting a USB MIDI firmware update. Start within 60 seconds. Bluetooth configuration also requires this approval; ordinary USB configuration and wired bootloader flashing do not. Back up your mappings first. Read the update instructions →
PipSqueak
pipsqueakCompact desk controller — 1 button, resistive joystick (GPIO 11/12), traditional LEDs on GPIO 1/2. Flash only onto PipSqueak hardware.
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · per-harmony MIDI channels · Full Diagonals joystick mode
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded control ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableCorrected Note 60 and GRB defaults · live controller-bank indication · stepped Bank Select buttons · configuration reliability fixes
v2.3.0
StableReliable adaptive configuration reads · protected multi-bank writes · hardened Web MIDI connection handling
v2.2.0
StableFour-voice global/per-button harmony stacks · per-button LED colors · Program Change step buttons · expanded SysEx configuration
v2.1.0
StableMulti-product release · product identity reporting · firmware recognition warnings · improved CLI guidance
v2.0.0
StableResistive pots · RGB addressable LED · 8s bootloader hold recovery · USB MIDI SysEx field update
midiMeSpesh
midimespesh2 buttons (GPIO 7/8), resistive pots (GPIO 6/9), traditional LEDs on GPIO 1/2, addressable LED on 48. Flash only onto midiMeSpesh hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded control ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableLive controller-bank indication · stepped Bank Select button actions · configuration reliability fixes
v2.3.0
StableReliable adaptive configuration reads · protected multi-bank writes · hardened Web MIDI connection handling
v2.2.0
StableFour-voice global/per-button harmony stacks · per-button LED colors · Program Change step buttons · expanded SysEx configuration
v2.1.0
StableMulti-product release · corrected GRB addressable LED order · product identity reporting · improved CLI guidance
v2.0.0
StableSame platform features as PipSqueak with midiMeSpesh pin map
midiMe
midime2 buttons on GPIO 7/8, two analog controls on GPIO 6/9, and two GRB addressable LEDs on GPIO 5. No traditional LEDs. Flash only onto midiMe hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded control ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableFirst midiMe v2 release · two individually mapped GRB LEDs · live bank indication · stepped Bank Select buttons
midiMeRotary
midimerotary4 buttons (GPIO 6/7/8/9), two EC11 encoders (GPIO 3/4 and 10/11), and two addressable LEDs on GPIO 5. No traditional LEDs. Flash only onto midiMeRotary hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded wrapping ranges for encoders and bank actions · configuration-file backup/restore · accessible configurator
v2.3.1
StableStepped MSB/LSB Bank Select button actions · live controller-bank indication · EC11 configuration
v2.3.0
StableReliable adaptive configuration reads · protected multi-bank writes · hardened Web MIDI connection handling
v2.2.0
StableFirst midiMeRotary release · EC11 controls · Bank Select MSB/LSB · Program Change step buttons · harmony stacks
dBH12
dbh1212 direct buttons on GPIO 1–12 and twelve addressable LEDs on GPIO 13, with the physical 3×4 snake map. No traditional LEDs. Flash only onto dBH12 hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded control ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableCorrected physical button order · live controller-bank indication · stepped Bank Select button actions
v2.3.0
StableReliable adaptive configuration reads · protected multi-bank writes · hardened Web MIDI connection handling
v2.2.0
StableFirst dBH12 release · per-button pressed/released LED colors · physical snake map · global/per-button harmony stacks
Mutantrumpet
mutantrumpet26-button instrument with ten resistive controls, RD-03E distance input on GPIO 6, and one shared addressable LED. No traditional LEDs. Flash only onto Mutantrumpet hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded analog ranges · configuration-file backup/restore · accessible configurator · retained reliable chunked transport
v2.3.1
StableLive controller-bank indication and activation · stepped Bank Select buttons · configuration transport hardening
v2.3.0
StableFirst Mutantrumpet v2 release · RD-03E distance-to-pitch · 100 cm radar range · reliable large multi-bank configuration
madMidi
madmidi7 buttons on GPIO 7–13, six analog controls on GPIO 1–6, and one shared addressable LED on GPIO 48. No traditional LEDs. Flash only onto madMidi hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded analog ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableLive controller-bank indication and activation · stepped Bank Select buttons · corrected default handling
v2.3.0
StableFirst madMidi v2 release · shared per-button LED mapping · two linear and four center-return controls
midiMonster
midimonster28-button 4×7 matrix, five analog controls, fourteen traditional LEDs, and one shared addressable LED. Flash only onto midiMonster hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions · updated physical button/LED ordering and saved-layout migration
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableBounded analog ranges · configuration-file backup/restore · accessible configurator · updated documentation
v2.3.1
StableFirst midiMonster v2 release · expanded controller pin map · live bank indication · configurable button and LED behavior
thePill
thepill2 buttons on GPIO 7/8, five analog controls on GPIO 4/5/6/9/10, and one shared RGB addressable LED on GPIO 48. No traditional LEDs. Flash only onto thePill hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · six literal-note harmony voices with velocity · keyboard shortcuts · reusable LED colors
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
v2.4.0
StableFirst thePill v2 release · bounded analog ranges · shared RGB LED · configuration-file backup/restore
woodSampler
woodsampler16 direct buttons on GPIO 1–16, three traditional LEDs on GPIO 17/18/21, and one shared RGB addressable LED on GPIO 48. Flash only onto woodSampler hardware.
v2.6.0
Latest stableStable · primary-note velocity · per-harmony MIDI channels · physical approval for Bluetooth configuration and USB firmware updates
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.6.0-beta.1
Archived betaOpt-in beta · primary-note velocity · independent per-harmony MIDI channels
v2.5.0-beta.1
Archived betaOpt-in beta · up to 64 banks · persistent global Next/Previous/Go to Bank controls · six harmony voices with velocity
v2.5.0
StableSix literal-note harmony voices with velocity · USB and Bluetooth MIDI configuration · expanded banks and current product profiles
MM6
mm6Beta-only profile: 6 buttons on GPIO 1–6, 6 potentiometers on GPIO 7–12, and 6 traditional LEDs on GPIO 13–18. No addressable LEDs. No stable build is available for this profile.
v2.7.0-beta.4
BetaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions
PipSqueaker
pipsqueakerBeta-only profile: PipSqueak controls with a passive piezo buzzer on GPIO 7, button on GPIO 10, joystick on GPIO 11/12, traditional LEDs on GPIO 1/2, and an RGB onboard LED on GPIO 48. Buzzer is disabled by default. No stable build is available for this profile.
v2.7.0-beta.4
BetaOpt-in beta · joystick pitch bend for passive buzzer · incoming MIDI LED feedback · per-bank channels and split directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions · passive-piezo note playback
PipSqueak SE
pipsqueakseBeta-only profile: two discrete RGB LEDs on GPIO 1/2/3 and 4/5/6, optional passive piezo on GPIO 7, button on GPIO 10, joystick on GPIO 11/12, and RGB onboard LED on GPIO 48. No traditional LEDs. Each RGB channel needs its own resistor. No stable build is available for this profile.
v2.7.0-beta.4
BetaOpt-in beta · joystick pitch bend for passive buzzer · incoming MIDI LED feedback · per-bank channels and split directions
v2.7.0-beta.3
Archived betaOpt-in beta · incoming MIDI LED feedback · traditional LED brightness/mappings where fitted · independent bank channels · split-half directions · passive-piezo note playback
I4
i44 buttons on GPIO 1–4, sharing one RGB addressable LED on GPIO 48 with independent per-button colors. No pots, encoders, traditional LEDs or buzzer. Flash only onto I4 hardware.
v2.7.0-beta.4
BetaOpt-in beta · four buttons with independent colors on the shared RGB LED · incoming MIDI LED feedback · independent bank channels
MutantrumpetV4
mutantrumpetv4Mutantrumpet controls and RD-03E distance input, plus SSD1306 128×64 I2C OLED on SDA GPIO 21/SCL GPIO 47. 26 buttons, 11 analog controls, one shared RGB LED on GPIO 48; no traditional LEDs. Flash only onto MutantrumpetV4 hardware.
v2.7.0-beta.4
BetaOpt-in beta · OLED live-bank display, bank names and three incoming note/CC status rows · original Mutantrumpet control layout
Production setup: open stable Configure → Trying the beta? Open beta Configure →