Product Description:
The Seeed Studio XIAO ESP32-S3 Sense is an advanced microcontroller board combining powerful processing, rich wireless communication, and onboard sensors in a thumb-sized footprint. Built around the dual-core ESP32-S3R8 chip, it features built-in Wi-Fi and Bluetooth 5.0, along with an integrated OV3660 camera, digital microphone, 8MB PSRAM, and 8MB Flash. With support for an external SD card (up to 32GB FAT), it's tailor-made for embedded AI applications, such as image recognition, voice interaction, and smart monitoring.
Whether you're exploring TinyML or creating intelligent IoT systems, the XIAO ESP32-S3 Sense offers an efficient and compact solution—perfect for wearable tech, smart homes, and rapid prototyping.
Key Features:
AI-Ready Hardware: Built-in OV3660 camera sensor and digital MEMS microphone
Wireless Connectivity: 2.4GHz Wi-Fi and Bluetooth 5.0 with BLE Mesh support
Powerful MCU: Dual-core Xtensa LX7 running up to 240MHz
Rich Memory: 8MB PSRAM + 8MB Flash onboard
Storage Expansion: MicroSD slot supports FAT-formatted cards up to 32GB
Compact Design: 21 x 17.8 x 15mm form factor with included expansion board
Low Power Operation: Deep sleep as low as 3μA, optimized for battery use
Battery Management: Integrated lithium battery charge circuit (100mA)
Technical Specifications:
| Category | Details |
|---|
| Processor | ESP32-S3R8 (Xtensa LX7 Dual-Core, up to 240MHz) |
| Memory | 8MB PSRAM, 8MB Flash |
| Storage | MicroSD card slot (32GB FAT supported) |
| Wireless | Wi-Fi 2.4GHz, Bluetooth 5.0, BLE Mesh |
| Sensors | OV3660 Camera (upgraded), Digital Microphone |
| I/O Interfaces | UART, I2C, SPI, IIS, 11x GPIOs (PWM), 9x ADC |
| Buttons & LEDs | Reset button, Boot button, User LED, Charge LED |
| Expansion | B2B connector with 2 additional GPIOs |
| Power Input | 5V (USB-C), 4.2V (Battery) |
| Power Consumption | Deep Sleep: ~3μA, Wi-Fi Active: ~110mA, BLE Active: ~102mA |
| Charging Current | 100mA |
| Operating Temp. | -20°C to +70°C |
| Dimensions | 21 x 17.8 x 15mm (with camera board) |
Applications:
Embedded machine learning (TinyML)
Real-time image and voice recognition
Smart home security and automation
Wearable health monitors
Environmental sensing and logging
Educational prototyping for AI/IoT
Package Includes:
Why Choose Seeed Studio XIAO ESP32-S3 Sense?
This board offers all-in-one functionality for next-generation embedded AI projects. Its small size, powerful processor, built-in camera and mic, and low power features make it a go-to choice for developers building smart, connected, and AI-enabled devices.
Note
- There are two additional GPIO on the plug-in camera sensor board linking to the microphone. If you want to apply these two external IO, the microphone should not be used at the same time.
Note Change Record
2025/6/30, Upgrade camera sensor from OV2640 to OV3660.
- Image processing
- Speech Recognition
- Video Monitoring
- Wearable devices
- Smart Homes
- Health monitoring
- Education
- Low-Power(LP) networking
- Rapid prototyping
Start building intelligent solutions with the Seeed Studio XIAO ESP32-S3 Sense—your ultimate tool for embedded vision and voice AI projects
