Board Introduction
The ESP32 S3 AI Voice Assistant Kit is a development board based on the ESP32-S3 chip, which is a high-performance, low-power, 32-bit microcontroller with integrated speech recognition, wake-word detection, and voice recognition capabilities. It is designed to be used in a wide range of applications, including voice-controlled home assistants, smart speakers, and smart watches.
The ESP32-S3 development boards are designed to resemble real-world products more closely than traditional dev boards. They can be used both as full-featured development platforms and deployed directly in practical applications.
ESP32-S3 Development Board
This board maximizes the capabilities of the ESP32-S3, integrating:
- Color display: 2-inch IPS screen (320x240 resolution, SPI interface)
- Audio I/O: Dual microphones (ZTS6216) + 1W speaker (DB1811AB50)
- Sensors: Built-in QMI8658 6-axis IMU (accelerometer + gyroscope)
- Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth 5.0 LE/Mesh
- AI capabilities: Hardware-accelerated vector instructions for neural networks
- Expandability: Two GH1.25 interfaces for external sensors/actuators (supports GPIO, CAN, I2C, UART, PWM)
Compact dimensions (69×41×14 mm) and a tool-free enclosure design enable effortless hardware/structural exploration. The screw-less casing allows manual disassembly without tools.
Board Resource Diagram
Hardware Specifications
| Category | Model | Parameters |
|---|---|---|
| Module | ESP32-S3-WROOM-1-N16R8 | Dual-core Xtensa® LX7 @ 240 MHz, 512KB SRAM, 8MB PSRAM, 16MB Flash, 2.4GHz Wi-Fi (802.11 b/g/n), Bluetooth 5.0 LE/Mesh, AI vector acceleration |
| Display | ST7789 | 2.0" IPS, 320×240 resolution, SPI interface |
| Touchscreen | FT6336 | Capacitive touch, I2C interface |
| Motion Sensor | QMI8658 | 3-axis accelerometer + 3-axis gyroscope, I2C interface |
| Audio DAC | ES8311 | Single-channel, I2C interface |
| Audio ADC | ES7210 | Quad-channel (3 used), I2C interface |
| Audio Amplifier | NS4150B | Mono Class-D amplifier |
| Microphone | ZTS6216 | Dual analog MEMS microphones |
| Speaker | DB1811AB50 | 1811 cavity speaker, 1W output |
| USB Hub | CH334F | USB 2.0 hub controller |
| USB-UART | CH340K | Up to 2Mbps baud rate |
| Power IC | SY8088AAC | Dual-channel 1A output |
| GH1.25 Interface | – | Two expandable interfaces (5V/3.3V power, GPIO, CAN, I2C, UART, PWM) |
| TF Card Slot | – | 1-SD mode connection |
| Type-C Port | – | Power supply, programming, debugging, USB communication |
| Buttons | – | Reset button + user-defined button |
Mechanical Dimensions
