The M5Stack Atom EchoS3R is a compact IoT voice controller built for smart voice and AI interaction projects. Powered by the ESP32-S3-PICO-1-N8R8, it offers Wi-Fi, 8MB Flash, and 8MB PSRAM for versatile development. With an ES8311 audio codec, MEMS microphone, and NS4150B amplifier, it delivers clear voice capture and quality sound—ideal for AI assistants and smart home control.
The M5Stack 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.
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
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