Melon Firmware Flasher

Braids

Mutable Instruments Braids macro-oscillator port with 47 synthesis engines. Short press steps forward through engines, long press (500 ms) steps back. Covers everything from classic analogue waveforms to physical modelling, FM,
wavetable, and noise.

Control description
POT 1 (A0)
Timbre
POT 2 (A1)
Morph / colour
POT 3 (A2)
Pitch (V/Oct)
IN (TRIG)
Trigger / gate
Button short
Next engine
Button long
Previous engine

LED colour = engine family:
Amber = Classic analogue (0–9) Yellow = Filtered Z-series (10–14) Green = Vocal / formant (15–17) Blue = FM / harmonic (18–21) Pink = Physical modelling (22–30) Purple = Wavetable (31–34) Red = Noise / digital (35–46)

White flash on trigger (80 ms).

Clap

TR-808-style digital hand clap with band-pass filter shaping. Three knobs control BPF width, decay time, and centre frequency. Accent input cuts level by 6 dB.

Control description
POT 1 (A0)
BPF Q — narrow ↔ wide
POT 2 (A1)
Decay time (20–200 ms)
POT 3 (A2)
BPF centre frequency
IN 1 (GPIO7)
Trigger (rising edge)
IN 2 (GPIO0)
Accent (HIGH = −6 dB)
Button
Manual trigger

LED: Lights for the decay duration on each trigger. Colour tracks BPF frequency — warm orange (low) → cool cyan (high).

Claves

Sine/triangle claves voice with V/Oct pitch tracking. Blend between sine and triangle waveforms; decay and pitch are independently controlled.

Control description
POT 1 (A0)
Decay time
POT 2 (A1)
Waveform — sine ↔ triangle
POT 3 (A2)
Pitch (V/Oct)
IN 1 (GPIO7)
Trigger (rising edge)
Button
Manual trigger

LED: Lights for the decay duration on each trigger. Colour tracks pitch — green (low) → red (high).

FM Drum

Two-operator FM percussion voice. Two modes give access to pitch, operator ratio, modulation index, decay time, and ratio envelope. Pickup protection prevents value jumps when switching modes. Settings saved to flash.

Control description
POT 1 (A0)
Mode 0: Pitch  |  Mode 1: Decay time
POT 2 (A1)
Mode 0: Op ratio  |  Mode 1: Ratio env
POT 3 (A2)
Mod index (both modes)
IN 1 (GPIO7)
Trigger (rising edge)
IN 2 (GPIO0)
Accent (HIGH = −6 dB)
Button
Switch mode & save to flash

LED: Amber = Mode 0 (pitch / ratio / index)   Cyan = Mode 1 (decay / ratio env / index).

White flash on trigger (80 ms).

Hi Hat

White and blue noise hi-hat with band-pass tone shaping. Short press triggers, long press (500 ms) toggles between blue and white noise character.

Control description
POT 1 (A0)
Decay time
POT 2 (A1)
Decay curve
POT 3 (A2)
BPF frequency
IN 1 (GPIO7)
Trigger (rising edge)
IN 2 (GPIO0)
Accent (HIGH = −6 dB)
Button short
Manual trigger
Button long
Toggle noise type

LED: Blue = blue noise   White = white noise. Green flash on trigger (80 ms).

Kick

Six-parameter sine-wave kick drum with soft clipping and pickup-protected parameter switching. Two modes give access to pitch, clip, decay, start/end frequency, and envelope curve. Settings saved to flash on mode switch.

Control description
POT 1 (A0)
Mode 0: Pitch  |  Mode 1: Start freq
POT 2 (A1)
Mode 0: Soft clip  |  Mode 1: End freq
POT 3 (A2)
Mode 0: Decay  |  Mode 1: Env curve
IN 1 (GPIO7)
Trigger (rising edge)
IN 2 (GPIO0)
Accent (HIGH = −6 dB)
Button (hold)
Switch mode & save to flash

LED: Amber = Mode 0 (pitch / clip / decay)   Cyan = Mode 1 (freq / curve).

White flash on trigger (80 ms).

Radio

Long-form sample player optimised for vocal and speech material. Variable speed pitch shifting, start position scrubbing (via pot and CV), and forward/reverse playback.

Control description
POT 1 (A0)
Playback speed (0.5×–1.5×)
POT 2 (A1)
Direction (<512 forward, ≥512 reverse)
POT 3 (A2)
Start position (0–100%)
IN 1 (GPIO7)
Trigger (rising edge)
IN 2 (GPIO0)
Loop mode (HIGH = loop)
Button
Manual trigger

LED: Green = forward playback   Orange = reverse. Updates live as you turn POT 2. White flash on trigger (80 ms).