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Maddie MOD1
LFO
LFO · Modulation
A simple but CV-rich LFO — modulate frequency, waveform, and level for chaotic motion.
- Width
- 4 HP
- Depth
- 28 mm
- Power
- +12V
- MCU
- Arduino Nano
- Controls
- 3 pots · button · LED
- I/O
- 4× 0–5V jacks
Overview
A straightforward low-frequency oscillator with a twist: every parameter has a CV input, so cross-patching the outputs back in produces chaotic, evolving modulation. The frequency range is saved to EEPROM with a button press, so it survives a power cycle.
Panel & I/O
| Control | Pin | Function |
|---|---|---|
| POT1 | A0 | Freq — frequency |
| POT2 | A1 | Wave — waveform select |
| POT3 | A2 | Level — output level |
| BTN | D4 | Change frequency range (saved to EEPROM) |
| LED | D3 | Output |
| F1 | A3 | In — Frequency CV |
| F2 | A4 | In — Waveform CV |
| F3 | A5 | In — Output level CV |
| F4 | D11 | Out — LFO |
Features
- CV over frequency, waveform, and level
- Multiple waveform shapes
- Frequency range stored to EEPROM
- Cross-patch friendly for chaotic modulation
© 2026 Maddie Synths · firmware based on work by Hagiwo · original firmware CC0 1.0 · hardware design by Hagiwo