Seeed Studio XIAO ESP32-C3 is another compact and versatile development board from Seeed Studio, but this time, it’s based on the Espressif Systems ESP32-C3 Wi-Fi and Bluetooth 5 (LE) SoC. Here’s a brief overview:

- Microcontroller:
- The ESP32-C3 is a 32-bit RISC-V single-core processor with:
- 400KB of SRAM
- 4MB of on-board Flash memory
- Operating at up to 160 MHz
- The ESP32-C3 is a 32-bit RISC-V single-core processor with:
- Form Factor:
- Like other XIAO boards, it has a tiny form factor, making it perfect for embedding into projects or for wearable technology where space is limited.
- 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, making it easy for Arduino developers to transition to this platform.
- Supports MicroPython for Python-based programming.
- Can also 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.
- Applications: Ideal for:
- IoT projects requiring Wi-Fi and Bluetooth connectivity.
- Wearable technology due to its small size and low power consumption.
- Prototyping wireless devices or sensors.
- Home automation, smart devices, and other applications needing Wi-Fi and Bluetooth.
- Community and Ecosystem:
- Benefits from Espressif’s ecosystem, including a wealth of documentation, SDK, and community support.
- Also integrates well with Seeed Studio’s offerings, providing access to a range of compatible hardware.
Feature

- Flexible MCU Board: Incorporate the ESP32-C3 32-bit RISC-V chip, operating up to 160 MHz, mounted multiple development ports, supported by Arduino / CircuitPython
- Outstanding RF performance: Implement complete Wi-Fi functions and Bluetooth Low Energy, while supporting communication over 100m with a U.FL antenna
- Elaborate Power Design: Provide 4 working modes as low as 44 μA in deep sleep mode, while supporting lithium battery charge management
- Thumb-sized Design: 21 x 17.8mm, Seeed Studio XIAO series classic form factor and elegant productization of single-sided components mounting, suitable for 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 | Description |
| Processor | ESP32-C3 SoC |
| RISC-V single-core 32-bit chip processor with a four-stage pipeline that operates at up to 160 MHz | |
| Wireless | Complete 2.4GHz Wi-Fi subsystem |
| Bluetooth 5.0/ Bluetooth mesh | |
| On-chip Memory | 400KB SRAM & 4MB Flash |
| Interface | 1x UART, 1x IIC, 1x SPI,11x GPIO(PWM), 4x ADC |
| 1x Reset button, 1x Boot button | |
| Dimensions | 21 x 17.8mm |
| Power | Circuit operating voltage: 3.3V@200mA |
| Charging current: 350mA/100mA | |
| Input voltage (VIN): 5V | |
| Deep Sleep Power Consumption | Deep Sleep Model: >44 μA |
| Wi-Fi Enabled Power Consumption | Active Model: <75 mA |
| Modem-sleep Model: <25 mA | |
| Light-sleep Model: <4 mA | |
| BLE Enabled Power Consumption | Modem-sleep Model: <27 mA |
| Light-sleep Model: <10 mA | |
| Working Temperature | -40°C ~ 85°C |
Hardware Overview
- Onboard

- PinOut

The XIAO ESP32-C3 stands out for its dual Wi-Fi and Bluetooth capabilities in a compact package, making it an excellent choice for IoT projects that need both types of wireless connectivity. Its compatibility with Arduino, MicroPython, and ESP-IDF, along with its power efficiency and robust feature set, make it a versatile platform for developers and hobbyists alike.