The Chain Encoder is a rotary encoder input node in the M5Stack Chain series. It integrates an AB rotary encoder, supporting rotation direction detection and pulse counting. The knob center supports button input.It also integrates a programmable RGB LED for status indication and interactive display. The encoder cap features a for LEGO-compatible hole structure, enabling more creative structural connections. Suitable for human-computer interaction, smart home control, and other applications.The Chain Encoder integrates the STM32G031G8U6 core controller and adopts the UART serial port cascading communication protocol. Through two HY2.0-4P expansion interfaces, it can expand to more Chain series devices and build richer interactive applications.Specifications:MCU: STM32G031G8U6Input Power: DC 5VCommunication Method: UART 115200bps@8N1Interface Specifications: 2x HY2.0-4PRGB LED: 1x WS2812BRGB Power Consumption: 22.51mAOperating Temperature: 0~40°CColor: As ShownMaterial: plasticPackage Contents:1 * Chain EncoderOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.