Seeeduino XIAO Expansion board is a powerful functional expansion board for Seeeduino XIAO of only half Raspberry Pi 4 size. It enables build prototype and project in easy and quick way. With its rich peripherals including OLED, RTC, expandable memory, passive buzzer, RESET/User button, 5V servo connector, multiple data interfaces… you could explore infinite possibilities of Seeeduino XIAO. Circuit python is also well supported by this board.

Features:

Quick Prototyping: Easy debug and Reset with RESET button and SWD pin led out to the male header. 0.96” OLED, enables visual data to display without PC serial monitor.
Rich peripherals: OLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip… One board on hand to explore infinite possibilities of Seeeduino XIAO.
No Soldering Needed: All pin led out. Convenient plug and play Grove connectors support multiple data protocols, including IIC, Uart, Analog/Digital.
Circuit Python Supported: Well supports circuit python. Mini SD card slot enables memory space expand, making it possible to allocate more libraries needed in prototyping and project building.
Mini Size: Compact and elegant with only half Raspberry Pi 4 size, perfect for tiny and wearable projects.

Specifications:

Power Supply	5v / 3.7V Lithium Battery
RTC chip	PCF8563T/5
RTC battery	CR1220
Expandable memory	Mini SD Card
Screen	0.96 OLED display
Other External Equipment	Passive buzzer, user button, 5Vservo connector
charging current	Max: 460mA
Grove Interface	Grove I2C 2, Grove UART 1, A0/D0 Grove *1