Seeed Studio Expansion Base for XIAO

The Seeed Studio Expansion Base for XIAO is the perfect addition for your Seeed Studio XIAO microcontroller board. With this compact and powerful expansion board, you can realize your projects easily and quickly. Thanks to a variety of integrated peripherals, including an OLED display, RTC module, memory expansion, and a passive buzzer, it opens up virtually unlimited possibilities for you. The Expansion Base supports various data protocols such as I2C, UART, and analog/digital signals and allows for convenient plug-and-play connection via Grove ports. Additionally, it features an integrated battery management chip, so you can power your projects on the go with a lithium battery. With a compact design that is only half the size of a Raspberry Pi 4, it is ideal for small and portable applications. Whether for prototyping, data collection, or control – the Seeed Studio Expansion Base for XIAO makes your development more flexible and efficient!

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Features:

Versatile Peripherals: The board features a 0.96-inch OLED display, an RTC module for timekeeping, memory expansion via MicroSD card, a passive buzzer, as well as additional buttons for user interactions.
Easy Prototyping: A RESET button and SWD pins make debugging and development of your projects easier.
No Soldering Required: Thanks to pre-fabricated Grove ports, you can connect sensors and modules directly – no soldering needed!
Supports CircuitPython: Use CircuitPython for simple script programming with expandable memory management thanks to the MicroSD card interface.
Compact Design: The small size makes it ideal for portable and space-saving applications.
Flexible Power Supply: The board can be powered via USB-C as well as a 3.7V lithium battery.
Grove Compatibility: Multiple Grove connectors support I2C, UART, and analog/digital connections for versatile expansion options.
5V Servo Connection: Expand your project with servomotors or sensors that require a 5V supply.
Highly Accurate RTC Module: The Real-Time Clock module ensures that your projects reliably keep time even without main power.

Application Examples:

Data Logger: Use the OLED display and MicroSD card to collect and display sensor data.
Remote Control Systems: Combine the Expansion Base with a servomotor or relay to realize smart controls.
Portable IoT Devices: With battery support, you can develop mobile IoT projects without a fixed power source.
Embedded Sensor Platform: Use the Grove ports to connect temperature, air quality, or light sensors.
Miniaturized Control Systems: Ideal for space-saving embedded solutions in robotics and automation.

Documentation:

User Guide

Specifications:

Manufacturer: Seeedstudio
Manufacturer SKU: 103030356
Operating Voltage: 5V / 3.7V lithium battery
Maximum Charging Current: 460mA
RTC Accuracy: ± 1.5 seconds per day (at 25°C)
Display: 0.96"" OLED
Memory Expansion: MicroSD card slot
Grove Interfaces: 2x I2C, 1x UART, 1x analog/digital
Additional Hardware: Passive Buzzer, User Button, 5V Servo Connector
Compatibility: Works with Seeed Studio XIAO SAMD21, XIAO RP2040, and XIAO nRF52840
Dimension: 58 x 42.5 x 13mm
Weight: 19g