ESP Audio Dock

Name: ESP Audio Dock
SKU: 29666
Price: 6.00 USD
Availability: InStock

Add audio capability to your ESP8266, ESP32, ESP32-C3 or ESP32-S2 module

Designed by Sonocotta in Poland

$6.00

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Add audio capability to your ESP8266, ESP32, ESP32-C3 or ESP32-S2 module

What is it ESP Audio Docks is a range of extension boards (i.e. docks) that allow you to develop Audio solutions based on ESP8266 and ESP32 chips. These were created to make Audio development entry a…

What is it

ESP Audio Docks is a range of extension boards (i.e. docks) that allow you to develop Audio solutions based on ESP8266 and ESP32 chips. These were created to make Audio development entry as easy and inexpensive as possible.

Motivation

I spent last few years developing different solutions based on ESP devices. It all started with ESP8266, where CPU power is not really sufficient to do real-time decoding, so you're limited to rather simple ding-dong business. Then ESP32 came, bringing two much more capable cores, so you have powerhouse to handle communication and decoding at the same time. Perhaps most importantly it also came with 4MB of PSRAM, so you can do decent buffering (essential for streamed content).

Now new ESP32 C-Series and S-Series chips are entering the market, and their potential is mostly unrealized as of today.

I created those docks, to be able quick prototype for whole range of ESP8266 and ESP32 chips, starting with the simplest finger-sized toys and going all the way up to full-sized speakers.

Features

	ESP Audio Solo	ESP Audio Duo	Hifi ESP	Louder ESP
Image
Docks with	ESP8266, ESP32C3, ESP32S2 Mini modules	ESP32 Mini Module	ESP32 Mini Module	ESP32 Mini Module
DAC	Single I2S DAC (MAX98357) with built in D-Class amp	Dual I2S DAC (MAX98357) with built in D-Class amp	PCM5100A 32bit Stereo DAC -100 dB typical noise level	Stereo I2S DAC (TAS5805M) with built in D-Class amp
Output (4Ω)	3W	2x 3W	Non-amplified stereo output	2x 15W at 12V Vin
Output (8Ω)	1.5W	2x 1.5W	Non-amplified stereo output	2x 23W at 22V Vin
Adds		8MB PSRAM (4MB usable)	8MB PSRAM (4MB usable)	8MB PSRAM (4MB usable)

Onboard PSRAM

Audio streaming require proper buffering to work, even with ESP32 500K of RAM it is a challenging task. For that reason most of the projects will require WROVER modules that have onboard PSRAM chip.

All ESP32 Docks has 8MB PSRAM chip onboard, connected via high-speed SDIO interface. This effectively turns your regular WROOM module into WROVER module with no effort required. Any code using PSRAM with just work out-of-the box.

Boards Pinout

ESP Audio Solo

	I2S CLK	I2S DATA	I2S WS
ESP8266	15	3	2
ESP32C3	5	20	6
ESP32S2	12	37	16

ESP Audio Duo

	I2S CLK	I2S DATA	I2S WS	PSRAM CE	PSRAM CLK
ESP32	26	22	25	16	17

HiFi-ESP

	I2S CLK	I2S DATA	I2S WS	PSRAM CE	PSRAM CLK
ESP32	26	22	25	16	17

Louder ESP

	I2S CLK	I2S DATA	I2S WS	PSRAM CE	PSRAM CLK	TAS5805 SDA	TAS5805 SCL	TAS5805 PWDN	TAS5805 FAULT
ESP32	26	22	25	16	17	21	27	33	34

Software samples

In the project github repo two firmware examples provided.

esp32-i2s-bare is base I2S implementation based on ESP-IDF implementation directly.
esp32-i2s-esp8266audio is based on excellent ESP8266Audio library (it works with the whole ESP range, don't get fooled by the name), providing minimum code implementation.

Platformio IDE

All samples are provided as Platformio IDE projects. After installing it, open sample project. Select proper environment based on your dock. Run Build and Upload commands to install necessary tools and libraries, build and upload project to the target board. Communication and proper upload method selection will be handled by IDE automatically. That's the happy world of using of-the-shelf modules.

Arduino IDE

Follow the ESP8266Audio library guide. Default settings will work out of the box with ESP8266 and ESP32 boards. For ESP32C3 and ESP32S2 board please adjust pinout according to the above section