MVMNT Firmware Collection#

MVMNT (also known as SyncLFO) is a smooth random CV and LFO generator based on Hagiwo’s Bezier Curve design. It breathes life into your patches with organic, evolving modulation.

Hardware: Arduino Nano · Dual-Panel Design · Track & Hold · Inverted & Bipolar Outputs

MVMNT (Bezier Curve Smooth Random)#

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Features

  • Smooth random control voltage using Bezier curves
  • Precise control over shape and rate of modulation
  • Adjustable intensity for fine-tuning randomness
  • Track & Hold via TRIG input
  • Inverted and Bipolar outputs
  • Dynamic, unpredictable modulation

Perfect for: Organic modulation, smooth random sequences, evolving patches

Controls:

  • DEV (Deviation): Adjusts the range/intensity of randomness
  • LEVEL: Controls the output voltage level
  • CURVE: Shapes the Bezier curve character
  • FREQ: Sets the rate of modulation
  • TRIG Input: Track & Hold - freezes current voltage
Flash MVMNT Firmware OLED preview

SyncLFO#

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Features

  • Classic LFO with multiple waveforms
  • Sync-able to external clock
  • Variable rate and depth control
  • Multiple output options
  • Tempo-sync'd modulation

Perfect for: Tempo-sync’d modulation, classic LFO shapes, rhythmic modulation

Controls:

  • RATE: LFO speed
  • DEPTH: Modulation amount
  • SYNC Input: External clock for tempo sync
  • Multiple Outputs: Different waveforms and polarities
Flash SyncLFO Firmware OLED preview

Hardware Requirements#

  • Arduino Nano or Arduino Nano (Old Bootloader)
  • Dual-Panel Design by bkrsmdesign
    • Front: MVMNT Bezier Curve Random CV
    • Back: SYNC MOD LFO
  • CV Outputs: Normal, Inverted, and Bipolar
  • Control Inputs: TRIG for Track & Hold

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
  • Test the CV outputs to confirm proper operation

About MVMNT#

MVMNT is inspired by the CV section of Mutable Instruments Marbles and based on Hagiwo’s design. It features:

  • Beginner-Friendly: Straightforward assembly with few parts
  • Dual-Use Design: Flip panel offers two modules in one
  • Smooth Random CV: Dynamic, organic modulation
  • Track & Hold: Capture and hold CV values via TRIG input

The name “MVMNT” (Movement) reflects the organic, breathing quality of the Bezier curve modulation.

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

No CV output:

  • Check your power supply
  • Verify the firmware uploaded successfully
  • Test with a different output (Normal, Inverted, or Bipolar)

Resources#

Based on Hagiwo’s design · Enhanced by the Modulove community