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:

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:

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