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Pricelist: Retail Price (B2C) Pricelist
Seeed Studio XIAO ESP32C3 – Ultra-Tiny IoT MCU with WiFi, BLE 5.0, and Integrated Battery Charging

Seeed Studio XIAO ESP32C3 – Ultra-Tiny IoT MCU with WiFi, BLE 5.0, and Integrated Battery Charging

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FeatureDetails
ProcessorESP32-C3 (32-bit RISC-V Single-Core)
Clock SpeedUp to 160 MHz
Wireless2.4GHz WiFi & Bluetooth 5.0 / Mesh
Onboard Flash4 MB
InterfaceUSB Type-C (Power and Programming)
Special FeatureBuilt-in Lithium Battery Charging Chip
Price
₹ 466.10 ₹ 466.10
(Tax included)

Product Description

The Seeed Studio XIAO ESP32C3 is a thumb-sized development board that redefines the standards of compact IoT engineering. Powered by the high-performance ESP32-C3 RISC-V chip, it integrates a full wireless ecosystem including WiFi and Bluetooth 5.0 in a footprint smaller than a postage stamp. All components are mounted on a single side, making it an ideal candidate for SMD soldering onto custom carrier boards. With its advanced power management and built-in battery charging circuitry, this board is specifically engineered for wearable technology, remote sensing nodes, and portable smart devices that demand maximum efficiency within restricted spaces.

Detailed Key Features

  • Postage-Stamp Form Factor: Measuring only 21mm x 17.5mm, it is designed for ultra-low profile applications such as smart wearables and hidden IoT sensors.

  • Modern RISC-V Core: Utilises an open-source RISC-V 32-bit processor, offering an exceptional performance-to-power ratio for sophisticated embedded tasks.

  • Autonomous Power Design: Features a dedicated onboard charging chip and battery soldering pads on the underside, enabling direct operation from a 3.7V LiPo battery.

  • Versatile Connectivity: Despite its miniature size, the board provides 11 digital I/O pins (all PWM capable) and 4 analogue inputs, supporting UART, I2C, and SPI protocols.

  • Enhanced Signal Range: Equipped with a detachable external U.FL (IPEX) antenna, providing significantly better signal stability and range compared to standard PCB antennas.

All Technical Details

  • Low Power Consumption: Consumes as little as ~44 μA in deep sleep mode, ideal for battery-dependent long-term deployments.

  • Memory Resources: Includes 400 KB of internal SRAM to handle complex data buffering and networking stacks.

  • Universal Interface: Features a robust USB Type-C port for both 5V power input and high-speed firmware programming.

  • Mechanical Dimensions: Precision-engineered at 21 x 17.5 mm, maintaining compatibility with the Seeed XIAO ecosystem.

  • Logical Compatibility: Operates at 3.3V logic level, ensuring compatibility with a wide variety of modern sensors and peripherals.

Prototyping & Engineering Tips (Robogears Exclusive)

  • Antenna Mandatory: Always connect the included external antenna to the U.FL connector before activating WiFi or Bluetooth to prevent RF stage damage from high VSWR.

  • Development Environment: The board is fully compatible with the Arduino IDE (install ESP32 board manager and select "XIAO_ESP32C3") as well as MicroPython for rapid prototyping.

  • Portable Power Solution: To create a truly mobile device, solder a small 3.7V LiPo battery to the bottom pads; the board handles the charging logic automatically whenever the USB-C is connected.

  • SMD Mounting: If using the board in a professional PCB design, leverage its single-sided component layout for easy pick-and-place surface mounting.

Package Includes

  • 1 x Seeed Studio XIAO ESP32C3 Board

  • 1 x External U.FL (IPEX) Antenna

Image Disclaimer

Image shown is for illustrative purposes only; the actual product may vary slightly in design, color, or component layout due to manufacturing updates, though all technical specifications will remain as described.