Expansion Board Features - Flexible expansion and development: Extensive expansion capabilities support a variety of connections, enabling easy custom expansions and rapid development. - ATtiny88 core: Equipped with an ATtiny88 microcontroller, delivering solid processing power and broad interface resources for versatile control tasks. - Multifunctional interfaces: Includes GPIO, UART, and I2C interfaces for convenient connection and control of different peripherals. - Stable construction: A sturdy plate provides reliable and stable operation suitable for time-sensitive and technical application scenarios. Use scenarios - Prototyping microcontroller projects that require multiple interfaces for sensors, actuators, and modules. - Building a custom peripheral module to extend existing microcontroller systems. - Educational or lab experiments to explore GPIO, UART, and I2C communication in practical setups.