Seeed XIAO ESP32S3 Sense

The Seeed XIAO ESP32S3r Sense is built around a highly-integrated, Xtensa processor ESP32-S3R8 SoC, which supports 2.4GHz WiFi and low-power Bluetooth® BLE 5.0 dual-mode for multiple wireless applications. It has lithium battery charge management capability.

As the advanced version of Seeed Studio XIAO ESP32S3, this board comes with a plug-in OV2640 camera sensor for displaying full 1600×1200 resolution. The base of it is compatible with OV5640 for supporting up to 2592×1944 resolution. The digital microphone is also carried with the board for voice sensing and audio recognition.

With powerful SoC and built-in sensors, this development board has 8MB PSRAM and 8MB FLASH on the chip, an additional

SD card

slot for supporting up to 32GB FAT memory. These allow the board for more programming space and bring even more possibilities into embedded ML scenarios.

As a number to the Seeed Studio XIAO family, the board maintains the classic thumb-sized form-factor design and elegant productisation of mounting single-sided components.

Features

• 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 OV2640 camera sensor for 1600*1200 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 17.5mm, adopting the classic form factor of XIAO, suitable for space-limited projects like wearable devices
• Product number: Seeed 113991115

Specifications

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	OV2640 camera sensor for 1600*1200
	Digital microphone
Memory	On-chip 8M PSRAM & 8MB Flash
	Onboard SD Card Slot, supporting 32GB FAT
Interface	1x UART, 1x IIC, 1x IIS, 1x SPI, 11x GPIOs (PWM), 9x ADC, 1x User LED, 1x Charge LED, 1x B2B Connector (with 2 additional GPIOs)
	1x Reset button, 1x Boot button
Dimensions	21 x 17.5 x 15mm (with expansion board)
Power	Input voltage (Type-C): 5V
	Input voltage (BAT): 4.2V
	Circuit operating Voltage (ready to operate):
	– Type-C: [email protected]
	– BAT: [email protected] (with expansion board)
	Webcam Web application:
	– Type-C:
	– – Average power consumption: 5V/138mA
	– – Photo moment: 5V/341mA
	– Battery:
	– – Average power consumption: 3.8V/154mA
	– – Photo moment: 3.8V/304mA
	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	Without any peripherals:
	– Modem-sleep Model: 3.8V/25.5 mA
	– Light-sleep Model: 3.8V/2.4 mA
	– Deep Sleep Model: 3.8V/63.768 μA
	Connect the camera:
	– Modem-sleep Model: 3.8V/44.57 mA
	– Light-sleep Model: 3.8V/5.47 mA
	– Deep Sleep Model: 3.8V/3.00 mA
	Connecting an SD Card:
	– Modem-sleep Model: 3.8V/32.8 mA
	– Light-sleep Model: 3.8V/3.48 mA
	– Deep Sleep Model: 3.8V/1.08 mA
	Simultaneously connect the camera and the SD card:
	– Modem-sleep Model: 3.8V/55.72 mA
	– Light-sleep Model: 3.8V/6.56 mA
	– Deep Sleep Model: 3.8V/3.98 mA
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	-40°C ~ 65°C

Resources

• Product Wiki

• OV2640 Camera Datasheet

• ESP32-S3 Datasheet

• Seeed Studio XIAO ESP32S3 Sense Schematic

• Seeed Studio XIAO ESP32S3 Sense KiCAD Libraries

• Seeed Studio XIAO ESP32S3 Sense Eagle Libraries

• Seeed Studio XIAO ESP32S3 Sense Factory firmware

Pinout

Package Contents

• 1x Seeed Studio XIAO ESP32S3 Sense
• 1x Plug-in camera sensor board
• 1x Antenna