M5Stack Atomic Echo Base with Microphone and Speaker

This Atomic Echo Base is a voice recognition module made for the M5 Atom series and has audio input and output capabilities. It combines an ES8311 mono audio decoder, a MEMS microphone, and an NS4150B power amplifier to give a great audio experience. The ES8311 supports 24-bit audio resolution and operates at sample rates from 16KHz to 64KHz, using I2S communication for level audio processing. The MEMS microphone provides a high signal-to-noise ratio (SNR), making it ideal for speech recognition. Paired with a built-in speaker, you can hear your voice with a clear sound output. With full-duplex communication, the Echo Base can handle voice input and output simultaneously. This makes it well-suited for tasks like voice commands, speech recognition, wake-up functions, and real-time audio playback. Features

* Compatible with the M5 Atom series

* Voice recognition

* Mono audio codec

* MEMS microphone

* Class-D amplifier

* Speaker

* Development platform

* UIFlow 1.0

* UIFlow 2.0

* Arduino IDE

Specifications

Audio Codec ES8311: 24-bit resolution, I2S protocol

MEMS Microphone MSM381A3729H9BPC, SNR ≥ 65 dB

Power Amplifier NS4150B: Class-D power amplifier

Speaker 2014-type cavity speaker: 1W@8Ω

Standby Current DC3.3V/3.36mA

Operating Current DC3.3V/14.84mA

Operating Temperature 0 - 40°C

Product Size 24.0 x 24.0 x 14.14mm

Product Weight 6.3g

Packaging Size 85.0 x 65.5 x 15.0mm

Packaging Weight 12.5g

Resources

* Product Wiki

Package Contents

* 1x Atomic Echo Base