Unit ByteSwitch andUnit ByteButton are an 8-button touch switch input unit equipped with 8 button inputs and 9 WS2812C RGB LEDs. It uses the STM32 microcontroller and supports I2C communication. The board includes two Port A interfaces and supports cascading multiple Unit ByteButton modules, making it suitable for complex systems. It can achieve button input detection and dynamic lighting feedback, ideal for smart home control, gaming devices, educational platforms, industrial status displays, and interactive exhibitions.