Original M5Stack ATOM Echo or Base ASR ESP32 Programmable Smart Speaker Development Board Kit For Home Assistant Voice Control

Original M5Stack ATOM Echo or Base ASR ESP32 Programmable Smart Speaker Development Board Kit For Home Assistant Voice Control

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51.33$ – 92.60$

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Color

Clear

Description

High-concerned chemical: None
Model: ATOM Echo
Type: ESP Series
Origin: Mainland China
Brand Name: M5Stack
Option1: ATOM Echo
Option2: Atomic Echo Base
Option3: ASR Unit
Option4: ATOM EchoS3R

Please note order optional

Option1 ATOM Echo

Option2 Atomic Echo Base

Option3 ASR Unit

Option4 ATOM EchoS3R

M5Stack ATOM Echo Programmable Smart Speaker ESP32 Development Board

Product Features

Light and small
Support STT services
Based on ESP32, Support A2DP
2.4G Wi-Fi IEEE 802.11b/g/n
Built-in microphone and speaker
RGB LED status display indication
GROVE extension interface
Record and playback
Programmable key
Programming platform: Arduino, ESP-IDF/ADF

Applications

BT Speaker
Voice control
IoT

Package Includes

1x ATOM ECHO

Specification

Resources Parameter

SoC: ESP32-PICO-D4,240MHz,Dual Core,Wi-Fi

Flash: 4MB

Interface: 1x IR-TX,1x Function Button,1x Reset Button

PinOut: G21/G25/5V/GND, 3V3/G22/G19/G23/G33

RGB LED: SK6812

Speaker: 0.8W/NS4168 I2S

Microphone: SPM1423 PDM

Net weight: 5g

Gross weight: 10g

Product Size: 24*24*17mm

Package Size: 85*65*17mm

Case Material: Plastic (PC)

Product details

Schematic

Real Photos

Product Description

ATOM ECHO is a Programmable Smart Speaker based on the M5ATOM design. Its form factor is very small, its dimensions are only 24 * 24 * 17 mm. Music can be played using the BT capabilities of the ESP32 from a mobile phone or tablet. The device could be programmed to access AWS, Baidu and other cloud platforms, using the built-in microphone and speaker for voice interaction, so that ATOM ECHO has certain AI capabilities, realizing voice control, story telling, Internet of things and other functions. The speaker is embedded with an RGB LED (SK6812), which can visually display the connection status. In addition to being used as a BT speaker, it still has the control ability of Atom series.Screw hole on the back is convenient for users to fix.

Kindly Remind

1, The Factory Test firmware is BT speaker, which uses A2DP protocol to transmit audio data(call reception is not supported). After power on, the red LED will be displayed. When the connection with BT device is established, the LED will turn green. At this time, the sound can be output through atom echo. The LED turns red when disconnected. The firmware is compiled on the esp-idf platform. If senior users need to develop other functions by themselves, they can build the environment according to the official documents of Espressif. See the following links for the source code of factory firmware and bin file, where the BIN file burning address is 0x0000.

2, Echo already supports HomeAssistant! The latest shipped devices with the sticker ESPHome FW Pre-installed for HomeAssistant have pre-burned ESPHome firmware, users can refer to the following link .Detailed tutorial reference Tutorials for setting up the M5Stack Atom Echo as a voice assistant for Home Assistant.

For those who are not using Home Assistant, you can flash the device with EasyLoader firmware, to resume the device to Factory Test status.

3, G19 / G22 / G23 / G33 has been defined, please do not reuse the above pins, otherwise ATOM ECHO will be damaged.

Note: please avoid such conditions with M5Stack Atom Echo.

DC output from I2S channel

Playing white noise for a long time

Playing full square-wave audio

EasyLoader

Tutorials for setting up the M5Stack Atom Echo as a voice assistant for Home Assistant

Product Description

The Atomic Echo Base is a voice recognition base designed specifically for the M5 Atom series. It uses an integrated solution with the ES8311 mono audio decoder, MEMS microphone, and NS4150B power amplifier. The ES8311 offers 24-bit audio resolution and a sample rate of 16KHz to 64KHz, supporting I2S communication and high-fidelity audio processing. The MEMS microphone with high signal-to-noise ratio (SNR) is suitable for automatic speech recognition, while the built-in speaker ensures efficient audio output. The device supports full-duplex communication, enabling simultaneous voice transmission and reception, enhancing interactive features such as speech recognition, wake-up, and audio playback. It is ideal for applications in smart homes and education.

PinMap

M5Stack Atomic Echo Base

Product 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

Applications

AI voice recognition interactive systems
Smart home control

Package Includes

1x Atomic Echo Base

Specification

Specification Parameter

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 * 24.0 * 14.14mm; Packaging Size: 85.0 * 65.5 * 15.0mm

Packaging Weight: 12.5g; Product Weight: 6.3g

Please note:

MIC Sampling Rate

The Atomic Echo Base microphone supports a sampling rate range of 16KHz-64KHz.

Product Comparison

Product details

Schematics

Module Size

M5Stack Unit ASR CI-03T AI Intelligent Offline Voice Module

Product Features

CI-03T AI intelligent offline voice module
Noise reduction processing
42 pre-installed commands
Supports up to 300 command words
UART serial communication
Supports custom wake-up word
Microphone and speaker
Development platforms:
UIFlow 1.0
UIFlow 2.0
Arduino IDE

Applications

AI Assistant
Smart Home
Security Monitoring
Automotive Systems
Robotics and Smart Hardware
Healthcare

Package Includes

1 x Unit ASR

1 x HY2.0-4P Grove cable (20cm)

Specification

Specification Parameter

AI Module: CI-03T AI Intelligent Offline Voice Module

Command Words: Supports up to 300 command words, Factory default 42 built-in commands

Wake-up Method: UART serial communication or voice keyword wake-up

Microphone: Analog microphone

Speaker: 8Ω@0.8W speaker (used for output device wake-up feedback)

Communication: UART serial communication, default baud rate: 115200@8N1

Noise Reduction: AEC (Acoustic Echo Cancellation)

Power Consumption: Standby Current: DC5V / 47.73mA; Operating Current: DC5V / 250.12mA

Operating Temperature: 0-40°C

Product Size: 48.0 x 24.0 x 16.0mm; Product Weight: 10.5g

Packaging Size: 136.0 × 92.0 × 13.0mm; Packaging Weight: 15.8g

Product details

Schematics

Module Size

PinMap

HY2.0-4P	Black	Red	Yellow	White
Port.C	GND	5V	TX	RX

Product Description

Unit ASR is an AI offline voice recognition unit, built with the CI-03T AI intelligent offline voice module. The unit offers powerful capabilities such as speech recognition, voiceprint recognition, voice enhancement, and voice detection. It supports AEC (Acoustic Echo Cancellation), effectively removing echoes and noise interference, thereby enhancing voice recognition accuracy. It also supports mid-conversation voice interruption, allowing flexible interruption during voice recognition and quick response to new commands. The product comes pre-configured with 42 English wake-up words and feedback command words. It uses UART serial communication for data transmission and supports awakening the device via UART or voice keywords. The unit also supports user-customizable modification of multi-language wake-up recognition words by regenerating the firmware and can recognize up to 300 command words. Equipped with a microphone for clear audio capture and a built-in speaker for high-quality audio feedback, this product is widely used in AI assistants, smart homes, security monitoring, automotive systems, robotics, smart hardware, and healthcare. It is an ideal choice for implementing intelligent voice interaction.

M5Stack Atom EchoS3R Programmable IoT Voice Interaction controller

Product Features

Integrated ESP32-S3-PICO-1-N8R8 main controller
8MB Flash and 8MB PSRAM
ES8311 mono audio codec
MEMS microphone
Class D amplifier
Integrated infrared transmitter
Expandable pins and interfaces
Development Platform
Arduino
UiFlow2
ESP-IDF
PlatformIO

Applications

BT Speaker
Voice control
IoT

Package Includes

1x ATOM EchoS3R

Specification

Specifications

Specification Parameter

SoC: ESP32-S3-PICO-1-N8R8 @ Dual-core Xtensa LX7 processor, up to 240MHz

PSRAM: 8MB

Flash: 8MB

Power Input: DC 5V

Audio Codec: ES8311: 24-bit resolution, I2S protocol

Microphone: MEMS microphone, Signal-to-Noise Ratio (SNR): 65dB

Speaker: NS4150B amplifier chip + 8Ω@1W 1318 cavity speaker

Operating Temp: 0 ~ 40°C

Product Size: 24.0 x 24.0 x 16.8mm

Product Weight: 9.3g

Package Size: 85.0 x 65.0 x 17.0mm

Gross Weight: 15.6g

Product Comparison

Product details

Product Description

Atom EchoS3R is a programmable IoT voice interaction controller designed for intelligent voice control and human-computer interaction scenarios. It is powered by the ESP32-S3-PICO-1-N8R8 main control chip, supports 2.4GHz Wi-Fi wireless communication, and comes with 8MB Flash and 8MB PSRAM to meet diverse application development needs, offering excellent performance and scalability. The audio system adopts an ES8311 mono codec, combined with a high-sensitivity MEMS microphone and an NS4150B power amplifier, enabling clear voice pickup and high-fidelity audio output to enhance voice recognition and interactive experiences. It is suitable for voice interaction scenarios such as AI voice assistants and smart home control.

Kindly Remind

Download Mode

To flash the firmware, press and hold the reset button (about 2 seconds) until the internal green LED lights up, then release it. The device is now in download mode and ready for flashing.

Additional information

Color	ASR Unit, ATOM Echo Standard, ATOM EchoS3R, Atomic Echo Base
High-concerned chemical	None
Model	ATOM Echo
Type	ESP Series
Origin	Mainland China
Brand Name	M5Stack
Option1	ATOM Echo
Option2	Atomic Echo Base
Option3	ASR Unit
Option4	ATOM EchoS3R

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