M5Stack ES8388 Audio Expansion Module

Description

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Description

Module Audio is an audio-interaction expansion module for M5Stack, built on the ES8388 audio codec solution. It offers dual 3.5 mm jacks (TRS audio jack supports only input, while TRRS combo jack supports both microphone input and headphone playback.) to fulfill various recording and stereo playback needs. An onboard STM32G030F6P6 microcontroller handles TRRS jack insertion detection and drives WS2812C RGB LEDs. Register configuration enables automatic switching between CTIA (American) and OMTP (International) wiring standards, ensuring compatibility with most headsets featuring integrated microphones. This module is ideal for smart voice, interactive art, educational entertainment, portable recording, and other audio applications.

Features

• STM32G030F6P6 MCU control
• High-fidelity audio codec
• Dual-channel microphone input
• TRS + TRRS dual 3.5 mm jacks
• CTIA/OMTP wiring standard switching
• WS2812C RGB status LEDs
• Supported development platforms
  • UiFlow1
  • UiFlow2
  • Arduino IDE

Includes

• 1 × Module Audio

Applications

• Smart speakers
• Voice recognition
• Educational entertainment
• Interactive art installations

Specifications

Specification	Parameter
MCU	STM32G030F6P6, I2C Communication @0x33
Audio Codec	ES8388, I2C Communication @0x10
Audio I/O	2-channel mic input, 1-channel stereo headphone output
Jack Types	1 × TRS (mic-only), 1 × TRRS (mic + headphone)
Status LEDs	3 × WS2812C_2020
Headset Standard	CTIA / OMTP
Operating Current	DC 3.3 V @ 23.53 mA
Standby Current	DC 3.3 V @ 8.58 mA
Operating Temperature	0 ~ 40 °C
Product Size	54.0 × 54.0 × 13.1 mm
Product Weight	12.8 g
Package Size	132.0 × 95.0 × 16.0 mm
Gross Weight	26.3 g

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