Seeed XIAO ESP32S3 - Sense

Seeed Studio XIAO Series are diminutive development boards, sharing a similar hardware structure, where the size is literally thumb-sized. The code name "XIAO" here represents its half feature "Tiny", and the other half will be "Puissant". Seeed Studio XIAO ESP32S3 Sense integrates a camera sensor, digital microphone, and SD card support. Combining embedded ML computing power and photography capability, this development board can be your great tool to get started with intelligent voice and vision AI.

Note: The board does not come with pin headers.

Seeed Studio XIAO ESP32S3 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 even 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. Being a number to the Seeed Studio XIAO family, the board deservedly maintains the classic thumb-sized form-factor design and elegant productization of single-sided components mounting.

Applications:

• Image Processing
• Speech Recognition
• Video Monitoring
• Wearable Devices
• Smart Homes
• Health Monitoring
• Education
• Low-Power (LP)  Networking
• Rapid Prototyping

• 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

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
  • Bluetooth 5.0, Bluetooth mesh
• Built-in Sensors:
  • OV2640 camera sensor for 1600*1200 resolution
  • Digital Microphone
• Memory:
  • On-chip 8M PSRAM & 8MB Flash
  • Onboard SD Card Slot, supporting 32GB FAT
• Interface:
  • 1 x UART
  • 1 x IIC
  • 1 x IIS
  • 1 x SPI
  • 11 x GPIOs (PWM)
  • 9 x ADC
  • 1 x User LED
  • 1 x Charge LED
  • 1 x B2B Connector (with 2 additional GPIOs)
• Power:
  • Input Voltage (Type-C): 5V
  • lnput Voltage (BAT): 4.2V
  • Circuit Operating Voltage:
    • Type-C: 5V@38.3mA
    • BAT: 3.8V@43.2mA (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 (Supply Power 3.8V):
  • Modem-sleep Model: ~44mA
  • Light-sleep Model: ~5mA
  • Deep Sleep Model: ~3mA
• Wi-Fi Enabled Power Consumption: ~ 110 mA (with expansion board)
• BLE Enabled Power Consumption: ~ 102 mA (with expansion board)
• Working Temperature: -40°C ~65°C
• Dimensions: 21 x 17.5 x 15mm (with expansion board)

Seeed XIAO ESP32S3 - Sense:

• 1 x XIAO ESP32S3
• 1 x Plug-in Camera Sensor Board
• 1 x OV2640 Camera
• 1 x External Antenna

• Getting Started with Seeed Studio XIAO ESP32S3 (Sense)
• XIAO SoM User Manual: The Ultimate Guide to Streamline Product Design, Providing Seamless Experience from Module Selection to Mass Production
• PlatformIO Adds Support for XIAO ESP32S3: Empower Your Projects with Ease

Documentations:

• OV2640 Camera Datasheet
• ESP32-S3 Datasheet
• TinyML Case Studies
• XIAO Reference Design
• 3D Printing "Case" Studies