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Home / Development, Learning, Evaluation & Industrial Control Boards / Beikecom ESP32AI Xiaozhi Children's Voice Dialogue Robot ESP32-S3-N16R8 Development Board 4G Version

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin -
Processor ESP32-S3 Dual-Core Xtensa LX7
Flash Memory 16 MB
PSRAM 8 MB Octal SPI
Connectivity Wi-Fi 4 (802.11 b/g/n), Bluetooth 5 (LE)
Cellular Support 4G LTE Cat.1 Module Included
Audio Interface I2S with Built-in Microphone and Speaker Driver
Display Interface SPI for LCD/OLED Screens
Power Supply 5V via USB-C or Li-Po Battery Input
Programming Environment Arduino IDE, ESP-IDF, MicroPython
Form Factor Compact PCB with Pin Headers for Expansion

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for teaching kids about AI voice interaction

Bought this to build a custom voice assistant for my daughter's room. The 4G module works flawlessly, allowing the robot to stay connected even when Wi-Fi is spotty. The audio quality is surprisingly clear for such a small board.

A

Anonymous

Mar 24, 2026

Rating: 5/5

My kids love their new talking robot

Assembly was straightforward. We followed a tutorial to create a simple dialogue robot. The response time over 4G is fast enough for natural conversation. It's become an educational toy and a learning tool.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Best board for learning embedded voice systems

As a computer science student, this board gave me everything I needed to understand voice recognition pipelines. The community support is active, and the 4G capability opens up so many project possibilities beyond just local Wi-Fi.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent value for a 4G enabled dev board

We used these boards for a university project on remote IoT monitoring with voice alerts. The integration with cloud services is seamless. Having 8MB of PSRAM makes a huge difference for buffering audio streams.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Solid performance for edge AI applications

Using this for a proof-of-concept voice control system in a warehouse. The dual-core processor handles background tasks while managing voice input efficiently. Only minor issue was the initial driver installation for the cellular module on Linux.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Great hardware, documentation could be better

The ESP32-S3 chip is powerful and the N16R8 configuration handles voice processing well. Setting up the 4G connection required some digging in the forums, but once configured, it's very stable. Ideal for industrial prototyping too.

5 FAQ

Q: Can this run TensorFlow Lite for Microcontrollers?

A: Yes, thanks to the ESP32-S3 chip and 8MB PSRAM, this board is fully capable of running TensorFlow Lite for Microcontrollers for basic keyword spotting and voice classification tasks.

Q: Is the microphone sensitive enough for a noisy classroom environment?

A: The onboard microphone is decent for close-range interaction. For noisy environments, we recommend connecting an external I2S microphone module via the pin headers for better noise cancellation.

Q: Does this board come with a SIM card slot pre-soldered?

A: Yes, the 4G version includes a nano-SIM card slot already soldered onto the board. You just need to insert your own SIM card with a data plan.

Q: Can I power this directly from a 3.7V Li-Po battery?

A: Absolutely. The board features a dedicated battery connector and power management circuit that accepts standard 3.7V Li-Po batteries safely.

Q: Which cellular bands does the 4G module support?

A: The integrated Cat.1 module supports major global LTE bands including B1, B3, B5, B8, B20, B28, B38, B40, and B41. Please check compatibility with your local carrier.

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