K147
AI Voice Development Kit, AtomS3R-AI Chatbot, ESP32-S3-PICO-1-N8R8, ES8311, 32bit, Xtensa LX7
| Manufacturer | M5STACK |
|---|---|
| Manufacturer Part No | K147Copy |
| Order Code | 4994221 |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | RM110.420 |
Product Information
| Manufacturer | M5STACK |
|---|---|
| Manufacturer Part No | K147Copy |
| Order Code | 4994221 |
| Technical Datasheet | |
| Silicon Manufacturer | Espressif Systems, Everest Semiconductor |
| No. of Bits | 32bit |
| Silicon Family Name | ESP32-S3 |
| Core Architecture | Xtensa |
| Core Sub-Architecture | LX7 |
| Silicon Core Number | ESP32-S3-PICO-1-N8R8, ES8311 |
| Kit Contents | AtomS3R-AI Chatbot Development Board AtomS3R, Atomic Voice Base ES8311 |
| Product Range | - |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
K147 is an AtomS3R AI Chatbot Kit (8MB PSRAM) which is an AI voice development kit consisting of two core parts: a controller and a voice base. The controller adopts AtomS3R, which is powered by the ESP32-S3 chip and provides a generous 8MB Flash + 8MB PSRAM memory combo. It also integrates a 9-axis IMU (BMI270 + BMM150), an IR transmitter, and other rich peripherals. The voice base is the Atomic Voice Base, built on the ES8311 audio codec, delivering high-fidelity audio decoding together with microphone and speaker driving capability. The kit supports multiple voice assistants such as XiaoZhi Voice Assistant, OpenAI Voice Assistant, and Volcano Engine Voice Assistant, enabling real-time voice interaction, custom wake-words, and low-latency recognition. Suitable for smart home and voice assistance applications.
- AI speech recognition
- Cloud-edge collaboration & model management
- Integrated ESP32-S3 main controller
- 9-axis sensor system, Edge AI inference
- IR transmitter control capability and expandable pins and interfaces
- Full-duplex I2S audio, 24-bit audio codec
- MEMS digital microphone
- Class-D amplifier (8ohm at 1W speaker)
- Development platform: ESP-IDF, PlatformIO, Arduino, UiFlow2
Contents
1 x AtomS3R, 1 x Atomic voice base.
Technical Specifications
| Silicon Manufacturer | Espressif Systems, Everest Semiconductor |
|---|---|
| Silicon Family Name | ESP32-S3 |
| Core Sub-Architecture | LX7 |
| Kit Contents | AtomS3R-AI Chatbot Development Board AtomS3R, Atomic Voice Base ES8311 |
| SVHC | No SVHC (04-Feb-2026) |
| No. of Bits | 32bit |
|---|---|
| Core Architecture | Xtensa |
| Silicon Core Number | ESP32-S3-PICO-1-N8R8, ES8311 |
| Product Range | - |
Technical Docs (1)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | China Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85371010 |
| US ECCN: | 5A992.c |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | To be advised |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .0216 |