Seeed XIAO ESP32-S3 Sense

Get a camera and microphone onto a tiny Wi-Fi board for vision or audio experiments.

Build & codeCameraESP32-S3microSD

Availability: Listed
Design: Schematics
Radio: 2.4 GHz Wi-Fi

Where to buy · 3 shops

Compare with similar devices

Bring along: USB-C cable, a microSD card if you want to record, and the supplied antenna.
Keep in mind: Camera model varies by batch, and the expansion board is what carries every sensor.

Source checked · Sep 18, 2026

Seeed XIAO ESP32-S3 Sense — Image credit
Maker image · XIAO ESP32-S3 Sense with camera and antenna · Seeed Studio
CC BY-SA 4.0 · Re-encoded as JPEG for display; content unchanged. A copy with the background removed is shown in the catalogue. Original image

(02) Blueprint

What’s published

Schematics published

Seeed publishes a dedicated Sense-variant schematic PDF (adds camera + mic wiring) and the ESP32-S3 datasheet; the related GitHub repo has only a footprint/pinout library, not the module's own PCB source.

Design files 2

Source 1

Seeed-Studio/OSHW-XIAO-SeriesdocsMIT91

git clone https://github.com/Seeed-Studio/OSHW-XIAO-Series.git

Key parts 2

Espressif ESP32-S3R8 All ESP32-S3 devicesMCU (dual Xtensa LX7, Wi-Fi/BLE, 8 MB PSRAM)Datasheet
OmniVision OV2640Detachable camera sensor (up to 1600x1200)

Research notes

OV2640 identified via multiple retailer listings (Seeed product page, Amazon, RobotShop); no manufacturer datasheet URL included since OmniVision doesn't host one I could verify live. The Sense schematic differs from the base XIAO ESP32S3 file (adds camera/mic/SD wiring).

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Markdown JSON

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Specifications

Processor & memory

Processor: ESP32-S3R8, dual-core 32-bit Xtensa LX7 at up to 240 MHz
Memory: 8 MB PSRAM and 8 MB flash on-chip
Storage: microSD slot on the expansion board, supporting 32 GB FAT
Dimensions: 21 × 17.8 × 15 mm with the expansion board fitted

Sensors

Camera: One OV3660 sensor on current boards; the maker states the earlier OV2640 is discontinued and that wiki sample code still applies
Microphone: One digital microphone on the expansion board
Where they live: Camera, microphone and SD slot are all on the Sense expansion board, not the processor board

Radio, interfaces & power

Wireless: Complete 2.4 GHz Wi-Fi subsystem with Bluetooth LE 5.0 and Bluetooth mesh
Buses: 1× UART, 1× I²C, 1× I²S and 1× SPI
Pins: 11 PWM-capable GPIO and 9 ADC, plus a board-to-board connector carrying two more GPIO
Controls: Reset button, boot button, user LED and charge LED
Power input: 5 V over USB-C, or 3.7 V on the battery pin
Price checked: US$13.99 at the maker's store

What still needs checking

The maker does not state which camera sensor is in any given box, only that the OV2640 was discontinued in favour of the OV3660.
No frame rate or resolution figures are published for the camera on this wiki page.

Downloads & docs

Maker specifications and documentationwiki.seeedstudio.com Seeed Studio store listingseeedstudio.com Espressif ESP32-S3 datasheetfiles.seeedstudio.com XIAO ESP32-S3 Sense v1.5 schematicfiles.seeedstudio.com

Source & revision notes

Maker listing checked Sep 18, 2026. Detailed documentation reviewed Sep 18, 2026. Not hands-on tested.

Price is a dated listing; confirm with the maker.

The camera fitted has changed between batches. The maker states the OV2640 is discontinued and later Sense boards ship the OV3660; sample code is said to still apply, but confirm which sensor is in the box before writing to registers.

The camera, microphone and microSD slot live on the Sense expansion board, not the processor board. Separating them leaves you with a plain XIAO ESP32-S3.

Dimensions of 21 × 17.8 × 15 mm are the stack including the expansion board, and the antenna must be attached for any wireless range.

This entry is the Sense variant. The base XIAO ESP32-S3 is a separate catalogue entry and has none of these sensors.

The maker's page notes that the Plus variant's board connector supports the Wio-SX1262 but is not compatible with the plug-in camera board.

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