Seeed Studio XIAO ESP32S3 is yet another addition to the XIAO line of compact development boards from Seeed Studio, this time featuring the Espressif Systems ESP32-S3 SoC. Here’s an overview:

- Microcontroller:
- The ESP32-S3 is a dual-core Xtensa LX7 processor with:
- 512KB of SRAM
- 8MB of on-board Flash memory
- Operating at up to 240 MHz
- The ESP32-S3 is a dual-core Xtensa LX7 processor with:
- Form Factor:
- The board maintains the small form factor characteristic of the XIAO series, making it suitable for integration into projects where space is at a premium.
- Connectivity:
- Wi-Fi: Supports 2.4 GHz Wi-Fi, compatible with IEEE 802.11 b/g/n standards.
- Bluetooth: Bluetooth 5 (LE) for low-power wireless communication.
- USB: A USB-C port for programming, power supply, and debugging.
- GPIO Pins: Offers 11 GPIO pins, including:
- Digital I/O
- Analog inputs (3 channels)
- PWM outputs
- SPI, I2C, UART, and other communication protocols
- Programming:
- Compatible with Arduino IDE, providing an easy entry point for Arduino developers.
- Supports MicroPython for Python-based programming.
- Can be programmed with the ESP-IDF (Espressif IoT Development Framework) for more advanced applications.
- Power:
- Can be powered via USB or an external power source through the 5V pin.
- Features multiple power-saving modes, suitable for battery-powered applications.
- Development Features:
- On-board LED: An RGB LED for debugging or as an output.
- User Button: For various functions or programming.
- BOOT/RESET Button: For entering bootloader mode or resetting the board.
- Antenna: An on-board antenna for Wi-Fi and Bluetooth communication.
- Additional Features:
- LCD/Camera Interface: Support for LCD display and camera modules through dedicated pins.
- USB OTG: On-The-Go support, allowing the board to act as a USB device or host.
- Secure Boot: Support for secure boot and flash encryption for enhanced security.
- Applications: Ideal for:
- IoT projects requiring both Wi-Fi and Bluetooth connectivity.
- Projects involving display or camera functionalities due to its hardware support.
- Wearable technology, thanks to its small size and low power consumption.
- Home automation, smart devices, and other applications needing robust wireless connectivity and computational power.
- Community and Ecosystem:
- Benefits from both Espressif’s and Seeed Studio’s ecosystems, including libraries, tutorials, and community support.
Feature

- Powerful MCU Board: Incorporate the ESP32S3 32-bit, dual-core, Xtensa processor running at up to 240MHz, mounted multiple development ports, Arduino / MicroPython supported
- Outstanding RF performance: Supports 2.4GHz WiFi and BLE 5.0 dual wireless communication, support 100m+ remote communication when connected with U.FL antenna
- Elaborate Power Design: Lithium battery charge management capability, offer 4 power consumption model which allows for deep sleep mode with power consumption as low as 14μA
- Thumb-sized Compact Design: 21 x 17.8mm, adopting the classic form factor of XIAO, suitable for space limited projects like wearable devices
- Perfect for Production: Breadboard-friendly & SMD design, no components on the back
Note
XIAO SoM User Manual open-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production. You can check here to see more info.
Starter Kit with free Course for all Electronics Neophytes and Enthusiasts
Seeed Studio has provided the Grove Starter Kit along with free and detailed courses for you quickly get started with microcontrollers and electronics, regarding all the Seeed Studio XIAO boards, promising you a great learning experience.
Not only programming but also electronics knowledge is not required, you will be taken step by step, from understanding the basic concepts to exercising the simple projects individually, finally being able to build complex, interesting, wearable projects on your own, owing a practical electronic product prototype from the course.

You can have access to the Seeed Studio Grove ecosystem by connecting it to the compatible Seeed Studio XIAO expansion board. We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Get started and explore the infinite possibilities of the Seeed Studio XIAO series!

If you are interested in programming embedded machine learning, we have Codecraft visual programming that can help you quickly start your own TinyML project. And we have set up a #tinyml channel on our Discord server, please click to join for 24/7 making, sharing, discussing, and helping each other out.
We already have 8 XIAO products based on different solutions in the XIAO family, to help you better understand the differences and choose the most suitable part for your projects, please refer to the Seeed Studio XIAO Series Page.
Specification
| Parameter | Seeed Studio XIAO ESP32S3 | Seeed Studio XIAO ESP32C3 |
| Processor | ESP32-S3R8 | ESP32-C3 SoC |
| Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz | RISC-V single-core 32-bit chip processor with a four-stage pipeline that operates at up to 160 MHz | |
| Wireless | Complete 2.4GHz WiFi subsystem | |
| BLE: Bluetooth 5.0, Bluetooth mesh | ||
| On-chip Memory | 8M PSRAM & 8MB Flash | 400KB SRAM & 4MB Flash |
| Interface | 1x UART, 1x IIC, 1x IIS, 1x SPI,11x GPIO(PWM), 9x ADC, 1x User LED, 1x Charge LED | 1x UART, 1x IIC, 1x SPI,11x GPIO(PWM), 4x ADC |
| 1x Reset button, 1x Boot button | ||
| Dimensions | 21 x 17.8mm | |
| Power | Input voltage (Type-C): 5VInput voltage (BAT): 4.2V | Input voltage (Type-C): 5VInput voltage (BAT): 4.2V |
| Circuit operating Voltage (ready to operate):- Type-C: 5V@19mA- BAT: 3.8V@22mA | Circuit operating Voltage (ready to operate):- USB:5V@9mA- BAT:3.8V@9mA | |
| Charging battery current: 100mA | Charging battery current: 350mA | |
| Low Power Consumption Model(Supply Power: 3.8V) | Modem-sleep Model: ~ 25 mALight-sleep Model: ~ 2mADeep Sleep Model: ~ 14 μA | Modem-sleep Model: ~ 24 mALight-sleep Model: ~ 3 mADeep Sleep Model: ~ 44 μA |
| WiFi Enabled Power Consumption | Active Model: ~ 100 mA | Active Model: <75 mA |
| BLE Enabled Power Consumption | Active Model: ~ 85 mA | Modem-sleep Model: <27 mA |
| Working Temperature | -40°C ~ 65°C | -40°C ~ 85°C |
Hardware Overview
- Onboard

- PinOut

The XIAO ESP32S3 stands out for its combination of a powerful processor, ample memory, and versatile connectivity options in a very small form factor. Its support for LCD and camera interfaces, along with its ability to act as a USB OTG device, expands its use cases significantly, making it a compelling choice for developers looking to create advanced IoT, display, or multimedia projects with minimal footprint.