SPECIFICATIONS

Accessory Type: Extension Board

Battery Included: no

Compatible With: esp32

Typical Application Fields: Education and Learning

Seeed Studio XIAO ESP32S3 leverages dual-core ESP32S3 chip, supporting both Wi-Fi and BLE wireless connectivities, which allows battery charge. It integrates built-in camera sensor, digital microphone. It offers 8MB PSRAM, 8MB FLASH, and external SD card slot. All of these make it suitable for embedded ML, like intelligent voice and vision AI.

Feature

Powerful MCU Board: Incorporate the ESP32S3 32-bit, dual-core, Xtensa processor chip operating up to 240 MHz, mounted multiple development ports, Arduino / MicroPython supported
Advanced Functionality: Detachable OV3660 camera sensor for 2048*1536 resolution, compatible with OV5640 camera sensor, integrating additional digital microphone
Great Memory for more Possibilities: Offer 8MB PSRAM and 8MB FLASH, supporting SD card slot for external 32GB FAT memory
Outstanding RF performance: Support 2.4GHz Wi-Fi and BLE dual wireless communication, support 100m+ remote communication when connected with U.FL antenna
Thumb-sized Compact Design: 21 x 17.8mm, adopting the classic form factor of XIAO, suitable for space-limited projects like wearable devices
Pre-trained Al models from SenseCraft AI for no-code deployment

Specification

Item	Seeed Studio XIAO ESP32S3 Sense
Processor	ESP32-S3R8 Xtensa LX7 dual-core,32-bit processor that operates at up to 240 MHZ
Wireless	Complete 2.4GHz Wi-Fi subsystem BLE: Bluetooth 5.0, Bluetooth mesh
Built-in Sensors	OV3660 camera sensor Digital Microphone
Memory	On-chip 8M PSRAM & 8MB Flash Onboard SD Card Slot, supporting 32GB FAT
lnterface	1x UART,1x lIC,1x lIS,1x SPI,11x GPIOs (PWM),9xADC，1x User LED, 1x Charge LED,1x B2B Connector(with 2 additional GPIOs) 1x Reset button, 1x Boot button
Dimensions	21 x 17.8 x 15mm (with expansion board)
Power	Input voltage (Type-C): 5V lnput voltage (BAT): 4.2V
	Circuit operating Voltage (ready to operate): -Type-C: 5V@38.3mA - BAT: 3.8V@43.2mA (with expansion board)
	Webcam Web application: - Type-C: - - Average power Consumption: 5V/220mA - Battery: - - Average power Consumption: 4.2V/212mA
	Microphone recording & SD card writing:- Type-C: - - Average power consumption: 5V/46.5mA - - Peak power consumption: 5V/89.6mA - Battery: - - Average power consumption: 3.8V/54.4mA - - Peak power consumption: 3.8V/108mA
	Charging battery current：100mA
Low Power Consumption Model (Supply Power: 3.8V)	Modem-sleep Model: ~44mA Light-sleep Model: ~5mA Deep Sleep Model: ~3mA
Wi-Fi Enabled Power Consumption	Active Model: ~ 110 mA (with expansion board)
BLE Enabled Power Consumption	Active Model: ~ 102 mA (with expansion board)
Working Temperature	-20°C ~70°C

Hardware Overview

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.