Elk Stomp™ System on Module

The Elk Stomp™
System on Module

Bring digital pedals to market faster, without compromises in performance, cost or scalability

STM32MP157 dual Cortex-A71GB DDR3 · 8GB eMMC
Elk Stomp SoM
Elk Stomp™ SoM50 × 50 mm
The idea

Building digital hardware shouldn’t be complicated.

Elk Stomp™ is the first System on Module purpose-built for audio product in a small form factor.

Without a platform
Sourcing components
Managing drivers
Setting up manufacturing
With Elk Stomp™
A dedicated System on Module
A matching carrier board
A ready-to-scale production pipeline
Who it’s for
01

Boutique pedal makers

Launch digital products without building an embedded engineering team. Elk Audio OS ships the real-time stack — you ship the sound.

02

Established pedal brands

Reduce R&D cost and de-risk manufacturing when entering digital. One validated SoM, five supported silicon platforms, no DSP rewrite.

03

Plugin developers

Bring your plugins into hardware with minimal effort. VST2, VST3 and LV2 run natively at sub-millisecond latency.

Your team focuses on sound, design and brand. We provide the hardware foundation and the path to manufacturing.

Elk Stomp Module · STM32MP157

Specifications.

A dual-core application processor with a dedicated real-time core, 160 pins of expansion and multi-channel audio on a module that drops into a pedal enclosure.

CPU
STM32MP157

Dual Cortex-A7 @ 800 MHz, paired with a Cortex-M4 @ 209 MHz for hard real-time control.

Memory
1 GB

DDR3 RAM

Storage
8 GB

eMMC

Expansion
160 pin

GPIO board-to-board interface

Power
2 - 4 W

typical, from a 5 V DC input

Audio
4× SAI

Multi-channel audio ready, no external codec bridge required.

Analog I/O
ADC inputs19×
PWM outputs12×
Serial buses
SPI
UART
I²C
Host & media
USB
SD/MMC
Open reference design

Meet the Jackpot Pedal.

The Jackpot is a complete reference design built using the Elk Stomp™ System on Module. It is a fully functional multi-effects guitar pedal featuring 15 VST effects across three effect slots, including distortion, fuzz, modulation effects, delays, and reverbs.

The Jackpot was created as an open reference design to demonstrate the capabilities of the Stomp platform and provide a practical starting point for developers building their own audio products.

Effect slots
3 chainable
Effect library
15 VST plugins
Platform
Elk Stomp™ SoM
Controls
3 knobs + display

Build. Modify. Make it Yours.

Everything behind the Jackpot is open. Take the design, change the effects, change the enclosure, and ship your own pedal.

01

Download the Jackpot pedal repo

Plugin sources and the full Elk Audio OS build recipe for the Jackpot.

Download
02

Order the development board

Start from working hardware. The Elk Stomp™ System on Module is the same board that runs inside the Jackpot.

Order
×Asia Universal Audio

Designed by Elk. Manufactured with Asia Universal Audio.

We design the SoM and the Jackpot Pedal. Asia Universal Audio builds them.

Talk to us about manufacturing