Seeed Studio XIAO ESP32 S3 Sense with Camera

The Seeed Studio XIAO ESP32S3 Sense is a very small board with the ESP32-S3R8 (dual-core Xtensa LX7 up to 240 MHz, 8 MB PSRAM, 8 MB flash), Wi-Fi and Bluetooth LE 5.0. A plug-on expansion board carries a camera module, a digital microphone and a microSD slot. This makes it suitable for camera, voice and AI applications in a small space. It is programmed via USB-C, for example with Arduino or MicroPython. A charging circuit for a LiPo battery on the BAT pads is built in.

Note on the camera: Seeed has discontinued the OV2640 camera. Depending on the delivery, the OV3660 or the OV5640 with autofocus is included; Seeed's examples support both.

Important: The I/O pins work with 3.3 V. Higher voltages on the pins can damage the chip.

Recommended Accessories:

• Seeed Studio Round 1.28inch Touch Display for XIAO
• Seeed Studio Expansion Base for XIAO
• 8GB MicroSDHC memory card Class 10 UHS-I incl. SD adapter

Features:

• ESP32-S3R8, dual-core Xtensa LX7 up to 240 MHz
• 8 MB PSRAM, 8 MB flash
• Wi-Fi 2.4 GHz and Bluetooth LE 5.0, U.FL connector for the included antenna
• Plug-on camera (OV3660 or OV5640), digital microphone, microSD up to 32 GB
• 11 GPIO with PWM, 9 of them analog; 1 × each I2C, UART, SPI and I2S
• Charging circuit for a 3.7 V LiPo battery
• Reset and boot buttons, user LED and charge LED
• Fits the expansion boards of the XIAO series

Application Examples:

• Small Wi-Fi camera, for example for door, garden or 3D printer
• Image and speech recognition with TinyML
• Voice control with the microphone
• Integration into Home Assistant with ESPHome

Documentation:

• XIAO ESP32S3 Sense: getting started and data (Seeed Studio Wiki, English)
• XIAO ESP32S3 Sense: using the camera (Seeed Studio Wiki, English)
• ESPHome documentation: ESP32 Camera Component

Technical Data:

• Manufacturer: Seeed Studio
• Manufacturer SKU: 113991115
• Processor: ESP32-S3R8, Xtensa LX7 dual-core, up to 240 MHz
• PSRAM: 8 MB
• Flash: 8 MB
• Wireless: Wi-Fi 2.4 GHz, Bluetooth LE 5.0, Bluetooth Mesh
• Camera: OV3660 or OV5640 (formerly OV2640)
• Microphone: digital (PDM)
• Storage: microSD up to 32 GB (FAT)
• Pins: 11 GPIO (PWM), 9 analog
• Interfaces: 1× UART, 1× I2C, 1× I2S, 1× SPI
• Input: 5 V via USB-C, 3.7 V on the BAT pads
• Current consumption with expansion board: modem sleep about 44 mA, light sleep about 5 mA, deep sleep about 3 mA, Wi-Fi active about 110 mA
• Operating temperature: -20 to 65 °C
• Dimensions: 21 × 17.8 × 15 mm (with expansion board)
• Weight: 6.6 g

Scope of Delivery:

• 1× Seeed Studio XIAO ESP32S3
• 1× expansion board with camera, microphone and microSD slot
• 1× antenna