The Xiaozhi AI Chatbot Kit is a high‑performance development board built around the ESP32‑S3 N16R8 microcontroller, designed for creators and engineers seeking to integrate advanced artificial intelligence and voice interaction capabilities into their projects. This compact motherboard combines robust processing power, extensive peripheral support, and built‑in AI acceleration, making it an ideal foundation for intelligent chatbots, voice assistants, and IoT devices.

Key Specifications

• Microcontroller: ESP32‑S3 N16R8, dual‑core 240 MHz Xtensa® LX7


• AI Acceleration: Integrated vector extension (VEX) engine for on‑chip neural network inference


• Memory: 16 MB PSRAM, 8 MB Flash


• Wireless Connectivity: Wi‑Fi 802.11 b/g/n (2.4 GHz), Bluetooth 5.0 BLE


• Audio Interface: I2S microphone input, I2S speaker output, built‑in DAC/ADC for voice processing


• GPIO: 45 programmable pins, including PWM, SPI, I2C, UART, and touch sensor support


• Power Supply: 5 V USB‑C input, optional Li‑Po battery connector (3.7 V ± 0.5 V)


• Dimensions: 58 mm × 38 mm × 1.2 mm


• Operating Temperature: -20 °C to 85 °C


• Development Support: Arduino IDE, ESP‑IDF, MicroPython, TensorFlow Lite for Microcontrollers

Typical Applications

• Voice‑activated smart assistants and home automation controllers


• AI‑driven chatbots for customer service kiosks


• Real‑time speech recognition and natural language processing modules


• IoT edge devices with on‑board inference for anomaly detection


• Educational kits for learning embedded AI and voice technology


• Robotics platforms requiring voice command interfaces


• Wearable devices with low‑power AI voice interaction