XIAO Expansion Board

Note: Seeeduino XIAO and battery is not included in this product Specification Item：Detail 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 Description： 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. Rich peripherals on board including: OLED display: Visual data display without connecting to PC, which enables debug in a more efficient way, and builds application such as a sensor hub, data monitor system, .etc RESET button: No more jumper wire and short circuit, easy reset with just one click. SWD debug: SWD pin led out as male pin header, making debugger connection and firmware download much easier. High precision RTC: High precision real-time clock with battery backup, enable maintain accurate time when the main power is turned off. Expandable memory: With a mini SD card slot on the back, no worry on memory limit any more when adding libraries and using circuit python. User button: Besides the RESET button, also provide with another user-defined button. Passive buzzer: Same passive buzzer on Wio Terminal, with which you could change the PMW frequency to award different beep sound to get a "buzzer music". Grove connectors: All pin led out, plug and play grove connectors support common data protocols (Grove IIC2, Grove UART1, A0/D0 Grove*1) Lipo Battery Charging: JST2.0mm standard lipo battery connector and battery management system, supports both USB and lipo battery power supply, and easy onboard battery recharge. 5V servo connector: 5V output led out to male header for 5V servo and sensor connection. Application： SWD debug Rapid prototyping Data display Mini Size Project