Seeed Xiao ESP32-C3 - WiFi/Bluetooth Module from Seeedstudio 113991054

Seeed Xiao ESP32-C3 - Compact Wi-Fi and Bluetooth Module for ESP32, Compatible with Arduino

The Seeed Xiao ESP32-C3 is a small module that, despite being about the size of a thumb, offers significant computing power and versatility. At its heart is the innovative ESP32-C3 chip, based on 32-bit RISC-V architecture, ensuring smooth and efficient operation.

With built-in 2.4 GHz Wi-Fi and Bluetooth 5.0/Mesh wireless connectivity, this module is an excellent solution for a wide range of IoT applications. The device offers flexibility and convenience when operating in Station mode, SoftAP mode, or a combination of both (SoftAP & Station).

Key Technical Features

• Memory: 400 kB SRAM and 4 MB Flash, providing ample space for applications and projects.
• Low power consumption: Four operating modes ensure optimal power management. In deep sleep mode, the chip consumes only 44 μA.
• Power and Charging: A built-in lithium battery charger enhances mobility. The operating voltage is 3.3 V, and the input voltage is 5 V.
• Input/Output Interfaces: 11 digital I/Os (with PWM support) and 4 analog I/Os (ADC), providing extensive options for connecting sensors.
• Communication ports: Support for UART, I2C, SPI, and I2S ensures easy integration with other systems.
• External antenna: The included antenna with a U.FL connector guarantees optimal range of up to 100 meters and efficient wireless communication.

Example Applications

• Smart home devices and building automation.
• Wireless temperature, humidity, and air quality sensors.
• Portable wearables that monitor activity.
• Real-time location tracking and asset monitoring systems.
• Educational projects in robotics and programmable electronics.

Benefits

• Space-saving: Compact dimensions (21 x 17.5 mm) allow for integration into very small projects.
• Ease of programming: Full compatibility with the Arduino and CircuitPython environments speeds up the software development process.
• Versatile communication: Simultaneous support for Wi-Fi and Bluetooth Low Energy simplifies connectivity to networks and devices.
• Ready for mobile use: The integrated battery charging circuit eliminates the need for external power modules.
• High performance: A 160 MHz processor ensures smooth operation even during demanding tasks.

The Seeed Xiao Module Collection

The Xiao ESP32-C3, developed by Seeedstudio, is an addition to the well-known Seeed Xiao product line. Its 21 x 17.5 mm form factor is consistent with the standard dimensions characteristic of this series. The device is programmed and powered via a modern USB Type-C interface, which is also used to charge the battery.

Component layout on the board:

• USB Type-C connector
• Charging indicator LED
• ESP32-C3 microcontroller chip
• Boot button
• WiFi/Bluetooth antenna connector
• Reset button

Technical Specifications

• Microcontroller: ESP32-C3 with 32-bit RISC-V architecture, clocked at 160 MHz
• Wireless communication: Supports 2.4 GHz Wi-Fi and Bluetooth 5.0 / Mesh
• Flash memory: 4 MB
• SRAM: 400 kB
• Communication interfaces: 1x UART, 1x I2C, 1x SPI, 1x I2S
• I/O Pins: 11x GPIO (PWM-capable), 4x ADC
• Operating voltage: 3.3 V at 200 mA
• Input voltage: 5 V
• Charging current: 50 mA / 100 mA
• Power consumption in deep sleep mode: 44 μA
• Power consumption with Wi-Fi: active mode below 75 mA, modem sleep mode below 25 mA, light sleep mode below 4 mA
• Power consumption with BLE: modem sleep mode below 27 mA, light sleep mode below 10 mA
• Dimensions: 21 x 17.5 mm

Package Contents

• Seeed Xiao ESP32-C3 module
• Antenna