Unit ByteSwitch is an 8-channel toggle switch input unit, equipped with 8 toggle switches and 9 WS2812C RGB LEDs. It adopts STM32 as the main controller, supports I2C communication, and has two onboard Port A I2C interfaces. Multiple Unit ByteSwitch units can be cascaded to meet the needs of complex systems. It can detect toggle switch inputs and provide dynamic light status feedback, suitable for smart home control, gaming entertainment devices, educational development platforms, industrial status displays, and interactive exhibitions.