Esparagus Audio Brick

.

COMPONENTS Hardware components

Espressif - ESP32

x 1

WIZnet - W5500

x 1

PROJECT DESCRIPTION

Overview

Esparagus Audio Brick is an ESP32-based compact Hi-Fi DAC and amplifier module designed as an open-hardware project that turns ordinary speakers into smart audio devices integrated with Home Assistant.

Equipped with the TAS5825M Class-D amplifier, PSRAM, and W5500 Ethernet, it delivers stable wired and wireless streaming along with high-quality output of 25W × 2.

Its DIN-rail mounting makes installation straightforward, and combining multiple units naturally enables multi-room audio or zone-based setups. It supports Music Assistant, Snapcast, and LMS (Squeezelite-ESP32), allowing users to enjoy music through Spotify Connect, AirPlay, high-quality multi-room playback, and more.

Features

MCU
- Based on an ESP32 dual-core (240 MHz) with 16MB Flash + 8MB PSRAM
Network
- WiFi : Supports 2.4 GHz Wi-Fi — OTA updates and wireless connectivity
- Ethernet : Equipped with W5500 Ethernet — enables stable wired audio streaming
Flashing via USB Type-C (CH340)
Audio
- Stereo I2S DAC + Class-D amplifier based on the TAS5825M
Others
- RGB LED for status and notifications
- Optional OLED display
- Snap-in connectors for power and speaker wiring — easy installation and maintenance

Market & Application Value

link : https://sonocotta.com/espragus-audio-brick/

Retrofit market for adding streaming and smart home capabilities to legacy speakers and amplifiers
Multi-room audio solutions for home environments (installed per room or zone)
Potential use as an installable audio amplifier unit in commercial and semi-industrial settings such as conference rooms, lounges, and retail spaces