🎛️
Sample Player
panel art
coming soon
coming soon
Maddie MOD2
Sample Player
Sampler · Drums
A one-shot PCM sample player — up to 18 samples in flash, selected via two-stage CV.
- Width
- 4 HP
- Depth
- 28 mm
- Power
- +12V / −12V / +5V
- MCU
- Seeed XIAO RP2350
- Controls
- 3 pots · button · LED
- I/O
- 2 gate in · 1 CV in · PWM audio out
Overview
A one-shot sample player holding up to 18 samples (about 20 seconds total) of 16-bit PCM in flash. Pick a sample with a two-stage group/index selection, set the playback speed, and fire it from a trigger. Linear-interpolation anti-aliasing keeps the pitch-shifted playback clean.
Panel & I/O
| Control | Pin | Function |
|---|---|---|
| POT1 | A0 | Speed (0.5–1.5×) |
| POT2 | A1 | Group select (1–6, 7–12, 13–18) |
| POT3 / CV | A2 | Index within group |
| IN1 | GPIO7 | In — Trigger (rising edge) |
| IN2 | GPIO0 | In — Select +6 samples |
| BUTTON | GPIO6 | Manual trigger |
| OUT | GPIO1 | Out — 10-bit PWM audio (~36.6 kHz) |
| LED | GPIO5 | Trigger indicator |
Features
- Up to 18 samples (~20 s) in flash
- Two-stage group + index sample selection
- Variable-speed playback with anti-aliasing
- One-shot triggering, ideal for drums and stabs
© 2026 Maddie Synths · firmware based on work by Hagiwo · original firmware CC0 1.0 · hardware design by Hagiwo