# AMEN_MINI

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**Technical case file · Hardware design / Firmware · 2026 · TECH**

> Compact standalone sampler derived from AKOR_01 — Teensy 4.1, SGTL5000 audio codec, microSD sample playback, 21 MX switches and 7 encoders.

## Facts

- **Year**: 2026
- **Platform**: Standalone hardware
- **Version control**: Git
- **Timeline**: 2026 — ongoing
- **Language**: C++
- **Host app**: KiCad
- **Status**: WIP

## Case file

- **Outcome**: A standalone instrument in active development: the goal is a compact, playable sampler designed end to end — PCB, C++ firmware, and physical interface.
- **Context**: Teensy 4.1, SGTL5000 codec, microSD, MX switches, EC11 encoders

## Project Overview

AMEN_MINI is a compact standalone sampler derived from AKOR_01. The goal: a self-contained, playable instrument designed end to end — PCB, embedded C++ firmware, and physical interface. The core is a Teensy 4.1, with an SGTL5000 audio codec, sample playback from a microSD card, 21 MX switches, and 7 EC11 encoders.

## Hardware

- **Teensy 4.1**: microcontroller running the audio and the interface
- **SGTL5000 codec**: audio conversion and output
- **microSD card**: sample bank read directly from the card
- **21 MX switches**: sample triggering and selection
- **7 EC11 encoders**: parameter navigation and editing

## Firmware

The firmware is written in C++ with the Teensy Audio library: sample streaming from the microSD, scanning of the switch matrix and encoders, and routing to the SGTL5000 codec.

## What this project proves

This project covers the full chain of an instrument: PCB design in KiCad, embedded C++ audio, and standalone instrument design. It is still in active development, and it is exactly the kind of technical work I care about: concrete, playable tools where I control every stage.

## Links

- [GitHub Repo](https://github.com/arthurkowskii/AMEN_MINI)

## Gallery

![Blueprint 01](/media/amen-mini/blueprint_01.png)
![Blueprint 02](/media/amen-mini/blueprint_02.png)
![Real 01](/media/amen-mini/real_01.jpg)
![Real 02](/media/amen-mini/real_02.jpg)

## Videos

- [Assembly](/media/amen-mini/assembly.mp4)

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