AtomS3R-CAM AI Chatbot Kit (8MB PSRAM)

The AtomS3R-CAM AI Chatbot kit combines an ESP32-S3 controller with 8MB Flash, 8MB PSRAM, a 0.3MP camera, 9-axis IMU, IR emitter, and a voice base with ES8311 audio codec, supporting multiple voice assistant integrations.

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M5 Stack AtomS3R-CAM AI Chatbot kit is an AI vision and voice development kit. The kit consists of two core parts: the controller and the voice base. The controller uses AtomS3R-CAM, which is built around the ESP32-S3 chip.

It provides a large memory combination of 8MB Flash + 8MB PSRAM. It also integrates a 0.3MP GC0308 camera, a 9-axis IMU (BMI270 + BMM150), an IR emitter tube, and other rich peripherals. The voice base uses the 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, making it suitable for voice assistant, smart home, and other embedded scenarios.

USB-C cable required but not included. 

Features

• Integrated ESP32-S3-PICO-1-N8R8 main controller
• 0.3MP GC0308 camera
• 9-axis sensor system
• 8MB Flash and 8MB PSRAM
• Integrated IR emitter tube
• Expandable pins and interfaces
• Full-duplex I2S voice
• 24‑bit audio codec
• MEMS digital microphone
• Class D amplifier (8Ω @ 1W speaker)
• Development platforms:
  • ESP-IDF
  • PlatformIO
  • Arduino
  • UiFlow2

Specifications

SoC	ESP32-S3-PICO-1-N8R8 @ Dual-core Xtensa LX7 processor, up to 240MHz @ USB-OTG
Storage	8 MB Flash + 8 MB PSRAM
Wireless	Wi-Fi 2.4 GHz
Camera	GC0308, 0.3 MP, F2.6, 57.6° FOV
Infrared IR	180° emission angle, up to 12.46 m in unobstructed conditions
6-axis IMU (BMI270)	Accuracy: 0.05% (acceleration), 0.05°/s (angular rate) I2C address: 0x68
3-axis magnetometer (BMM150)	Accuracy: 0.3 μT Mounted on BMI270, data accessed via BMI270
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 amplifier
Speaker	2014 cavity speaker: 1W @ 8Ω
Operating Temperature	0 ~ 40°C
Product Size	AtomS3R-CAM: 24.0 x 24.0 x 13.5 mm Atomic Echo Base: 24.0 x 24.0 x 14.14 mm
Product Weight	AtomS3R-CAM: 7.4g Atomic Echo Base: 6.3g
Package Size	120.0 x 65.0 x 16.0 mm
Package Weight	22.1 g

Resources

• Product documentation

Package Contents

• 1 x AtomS3R-CAM
• 1 x Atomic Echo Base