Atom EchoS3R

SKU:C126-ECHO

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.

Tutorial

Arduino IDE

This tutorial will introduce you to programming and controlling the Atom EchoS3R device using the Arduino IDE.

Atom EchoS3R XiaoZhi Voice Assistant

This tutorial introduces how to use the Atom EchoS3R device to build a personal voice assistant application by flashing the XiaoZhi Voice Assistant firmware through M5Burner.

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

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

Learn

Enter 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.

Schematics

1/2

PinMap

Audio

ESP32-S3	G45	G0	G48	G4	G3	G17	G11	G18
ES8311	SDA	SCL	DOUT	DIN	WS	BCLK	MCLK
NS4150B								NS4150_CTR

IR TX

ESP32-S3	G47
IR_TX	IR_LED_DRV

BUTTON

ESP32-S3	G41
BUTTON	USER_BUT

HY2.0-4P

HY2.0-4P	Black	Red	Yellow	White
PORT.CUSTOM	GND	5V	G2	G1

Model Size

Atom EchoS3R Model Size PDF

Datasheets

Softwares

Arduino

PlatformIO

[env:m5stack-atoms3r]
platform = espressif32@6.7.0
board = esp32-s3-devkitc-1
framework = arduino
board_build.arduino.memory_type = qio_opi
build_flags =
    -DESP32S3
    -DBOARD_HAS_PSRAM
    -mfix-esp32-psram-cache-issue
    -DCORE_DEBUG_LEVEL=5
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DARDUINO_USB_MODE=1
lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

Easyloader

Easyloader	Download	Note
Atom EchoS3R Factory UAC Firmware Easyloader	download	/

Other

Atom EchoS3R XiaoZhi Voice Assistant

Video

Atom EchoS3R Product Introduction and Feature Demonstration

Product Comparison

Product Compare	Atom EchoS3R	Atom Echo
SoC	ESP32-S3-PICO-1-N8R8	ESP32-PICO-D4
Flash	8MB	4MB
PSRAM	8MB	/
Audio Solution	ES8311 + NS4150B	NS4168 + SPM1423
RGB LED	/	WS2812 x1