AtomS3R AI Chatbot Kit (8MB PSRAM)

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The AtomS3R-AI Chatbot kit combines an ESP32-S3 controller with 8MB Flash, 8MB PSRAM, 9-axis IMU, and an IR emitter, with a voice base featuring the ES8311 audio codec for high-quality audio. It supports multiple voice assistants for real-time interaction


M5Stack AtomS3R-AI Chatbot is an AI voice development kit. The kit consists of two core parts: the controller and the voice base. The controller adopts AtomS3R, which is based on the ESP32-S3 chip. It provides a large memory combination of 8 MB Flash + 8 MB PSRAM.

It also integrates a 9-axis IMU (BMI270 + BMM150), IR emission tube, and other rich peripherals. The voice base uses Atomic Echo Base, based on the ES8311 audio codec chip, capable of high-fidelity audio decoding and microphone and speaker driving. The kit supports integration with XiaoZhi Voice Assistant, OpenAI Voice Assistant, and Volcengine Voice Assistant, enabling real-time voice interaction, custom wake words, and low-latency recognition.

Features

  • Supports XiaoZhi Voice Assistant, OpenAI Voice Assistant, etc.
  • AI voice recognition
  • Edge-cloud collaboration and model management
  • Integrated ESP32-S3 main controller
  • 9-axis sensor system
  • Edge AI inference
  • 8 MB Flash and 8 MB PSRAM
  • Supports infrared emission control
  • Expandable pins and interfaces
  • Full-duplex I2S voice
  • 24-bit audio codec
  • MEMS digital microphone
  • Class D amplifier (8 Ω @ 1 W speaker)
  • Development platforms:
    • ESP-IDF
    • PlatformIO
    • Arduino
    • UiFlow2

Specifications

SoC ESP32-S3-PICO-1-N8R8, dual-core Xtensa LX7 @240 MHz, USB-OTG
PSRAM 8 MB PSRAM
FLASH 8 MB FLASH
TFT Driver GC9107
Color IPS Resolution 128 × 128
6-axis attitude sensor (BMI270) Accuracy: 0.05% (acceleration), 0.05°/s (angular velocity)
I2C address: 0x68
3-axis geomagnetic sensor (BMM150) Accuracy: 0.3 μT
Mounted on BMI270, magnetometer data obtained via Sensor Hub
Infrared IR ∠180° emission distance: 12.46 m (unobstructed)
Expansion Interfaces Bottom GPIO: G5/G6/G7/G8/G38/G39 and HY2.0-4P expansion port
Audio Codec ES8311: 24-bit resolution, using I2S protocol
MEMS Microphone MSM381A3729H9BPC, SNR: ≥65 dB
Power Amplifier NS4150B: Class D power amplifier
Speaker 2014 cavity speaker: 1 W @ 8 Ω
Operating Temperature 0 ~ 40 °C
Product Dimensions AtomS3R: 24.0 × 24.0 × 12.9 mm
Atomic Echo Base: 24.0 × 24.0 × 14.14 mm
Product Weight AtomS3R: 6.6 g
Atomic Echo Base: 6.3 g

Resources

Package Contents

  • 1x AtomS3R AI Chatbot Kit (8MB PSRAM)
  • 1x Atomic Echo Base

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