A-RYTH-MATIK Firmware Collection#

The A-RYTH-MATIK is a versatile 6-channel gate/trigger generator based on the Hagiwo design. Choose from multiple firmware options below, each offering a unique approach to rhythm generation.

Hardware: Arduino Nano · OLED Display (SSD1306) · Rotary Encoder · 6 Output Channels

Euclidean Rhythms#

🔢

Features

  • 6 independent Euclidean rhythm generators
  • Adjustable steps, hits, rotation, and rest per channel
  • Multiple output modes: trigger, gate, flip
  • Save/load patterns to memory banks
  • Individual channel reset and randomization
  • Interactive OLED with visual feedback

Perfect for: Mathematical polyrhythms, complex evolving patterns, generative music

Controls:

  • Encoder Short Press: Toggle between menu options
  • Encoder Long Press: Access global settings
  • Encoder Double Click: Reset all patterns
  • CLK Input: Clock source to advance patterns
  • RST Input: Reset all patterns to first step
Flash Euclidean Firmware OLED preview

Buds#

🌱

Features

  • Organic, evolving gate sequences
  • Algorithmic pattern generation
  • Probability-based gate generation
  • Visual feedback on OLED display
  • Patterns grow and mutate over time

Perfect for: Generative patches, organic rhythms, evolving patterns

Controls:

  • Encoder: Adjust evolution parameters
  • CLK Input: Clock source
  • RST Input: Reset pattern evolution

Gate Sequencer#

▶️

Features

  • Classic step sequencer with 6 channels
  • Per-step gate on/off control
  • Adjustable pattern length
  • Step probability control
  • Save/load sequences
  • Visual step display

Perfect for: Traditional sequencing, rhythmic patterns, hands-on control

Controls:

  • Encoder: Navigate and edit sequence steps
  • CLK Input: Advance sequencer
  • RST Input: Return to first step
Flash Gate Sequencer Firmware OLED preview

Pong#

🏓

Features

  • Physics-based rhythm generation
  • Multiple balls with different speeds
  • Adjustable gravity and bounce parameters
  • Visual representation on display
  • Chaotic yet musical patterns

Perfect for: Experimental rhythms, chaotic patterns, visual performance

Controls:

  • Encoder: Adjust physics parameters
  • CLK Input: Update ball physics
  • RST Input: Reset ball positions

Labor (Experimental)#

🧪

Features

  • Multiple experimental rhythm algorithms
  • Deep parameter control
  • Modulation options
  • Research-focused feature set
  • Bleeding-edge algorithms

Perfect for: Experimentation, discovering new rhythms, research

Controls:

  • Encoder: Navigate experimental parameters
  • CLK Input: Clock source
  • RST Input: Reset current algorithm

Hardware Requirements#

  • Arduino Nano or Arduino Nano (Old Bootloader)
  • OLED Display: SSD1306, 128x64 pixels, I2C
  • Rotary Encoder with push button
  • 6 output channels with LED indicators
  • Clock (CLK) and Reset (RST) inputs

Installation Instructions#

1. Connect Your Module#

  • Connect your Arduino Nano to your computer via USB
  • Ensure the module is powered

2. Select Firmware#

  • Choose the firmware that matches your needs above
  • Click the appropriate button (Nano or Old Bootloader)

3. Flash Firmware#

  • Your browser will prompt you to select the serial port
  • Select the port corresponding to your Arduino
  • Wait for the upload to complete (typically 10-30 seconds)

4. Verify#

  • The module should boot up with the new firmware
  • Check the OLED display for confirmation

Encoder Direction#

Some modules have reversed encoder direction. If rotating the encoder moves parameters in the opposite direction than expected, use the “Reversed” firmware variants.

Troubleshooting#

Upload fails:

  • Ensure you’re using Chrome, Edge, or Opera (Web Serial API required)
  • Try unplugging and reconnecting the USB cable
  • Check that no other software (Arduino IDE, serial monitor) is using the port

Module doesn’t respond:

  • Check power connections
  • Verify correct board selection (Nano vs Old Bootloader)
  • Try the opposite bootloader version

Wrong encoder direction:

  • Use the reversed encoder firmware variant

Resources#

Based on the Hagiwo design · Enhanced by the Modulove community