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Maddie MOD1
EG
Envelope
A three-output envelope generator with a self-patchable end-of-cycle out for LFO or clock duty.
- Width
- 4 HP
- Depth
- 28 mm
- Power
- +12V
- MCU
- Arduino Nano
- Controls
- 3 pots · button · LED
- I/O
- 4× 0–5V jacks
Overview
EG is a three-output envelope generator: a normal envelope, an inverted copy, and an end-of-cycle pulse. Patch the end-of-cycle output back into the trigger input and EG free-runs as an LFO or clock source. Attack, release, and output level are all on the front panel.
Panel & I/O
| Control | Pin | Function |
|---|---|---|
| POT1 | A0 | Attack time |
| POT2 | A1 | Release time |
| POT3 | A2 | Level — output level |
| BTN | D4 | Trigger |
| LED | D3 | Output level |
| F1 | D17 | In — Trigger |
| F2 | D9 | Out — End-of-cycle pulse |
| F3 | D10 | Out — Inverted EG |
| F4 | D11 | Out — EG |
Features
- Normal and inverted envelope outputs
- End-of-cycle pulse — self-patch for free-running LFO / clock
- Adjustable attack, release, and output level
- Manual trigger button
© 2026 Maddie Synths · firmware based on work by Hagiwo · original firmware CC0 1.0 · hardware design by Hagiwo