Live Loop Pedal Kit with Arduino Due + LED
Live Loop Pedal Kit with Arduino Due – Record, Overdub & Playback Audio Loops
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Create your own functional looper pedal that captures, overlays and plays back audio in real time — the same core technology used by musicians and sound designers. This advanced kit takes you deep into digital signal processing on the Arduino Due’s 32‑bit ARM Cortex‑M3, building expertise in memory management, DAC/ADC interfacing and real‑time buffer handling. You’ll solder a complete audio signal chain, from microphone to amplifier, and house it in a portable enclosure ready for the stage or the lab bench.
What You'll Build
From pressing the record button to hearing layered loops, you'll assemble a compact pedal with a high‑gain MAX9814 electret microphone, a 12‑bit MCP4725 DAC for clean output, a PAM8403 amplifier driving a 3W speaker, and a 0.96‑inch OLED visual display. The final unit runs on a 9V supply and stores up to 8 seconds of mono audio with infinite overdubs. Three tactile buttons give you record, play/overdub and clear control, turning the Arduino Due into a self‑contained live loop station.
What You'll Learn
- Real‑time audio sampling and buffer management inside the Arduino Due’s 96 KB SRAM
- I²C communication to simultaneously drive the MCP4725 DAC and SSD1306 OLED
- Hands‑on soldering of through‑hole and SMD components onto a custom protoboard layout
- Audio amplifier integration and noise suppression for clean, hum‑free playback
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Due | 1 |
| MAX9814 Mic | 1 |
| MCP4725 DAC | 1 |
| PAM8403 Amp | 1 |
| 3W 8Ω Speaker | 1 |
| Tactile Button | 3 |
| 0.96in OLED | 1 |
| 100nF Caps | 15 |
| 10kΩ Resistors | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 9V 1A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is designed for engineering students and serious makers who want to move beyond blinking LEDs into real‑time embedded audio. Ideal for B.Tech ECE/EEE students working on digital signal processing projects, Smart India Hackathon participants prototyping musical interfaces, and researchers at IIT, NIT, VIT or BITS Pilani who need a pre‑validated looper module. Advanced CBSE Class 12 students building investigatory projects will also find it a compelling challenge.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code on the box to access the AI companion trained on this kit, or message us on WhatsApp for personalised guidance from our Bengaluru team.
How long can the recorded loop be?
The Arduino Due’s 96 KB SRAM allows roughly 8 seconds of mono audio at 16 kHz, 12‑bit resolution. You can adjust the sampling rate and bit depth in the firmware to trade off quality for a longer loop duration.
Can I connect an instrument directly instead of the mic?
Yes, the MAX9814 module includes an electret mic but you can bypass it and feed a line‑level signal through a coupling capacitor into the Due’s ADC pin. The AI companion includes a wiring diagram for this configuration.
Do I need previous soldering experience?
This is an advanced kit that requires soldering through‑hole components, including the OLED display and tactile buttons onto a protoboard. Some prior soldering practice is recommended, but the included soldering iron and wire get you started immediately.
Arduino Due records audio loop to SRAM buffer and plays it back while new layer is recorded. Basic looper.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items