The ChainJoystick is a high-precision Hall effect electromagnetic joystick input node. It supports three-axis control signal input, including analog input for the X/Y axes and digital input via buttons for the Z axis. The device uses a Hall effect electromagnetic joystick, achieving high-precision control by detecting changes in the magnetic field. It features non-contact operation, wear resistance, high precision, and strong anti-interference capabilities, ensuring product stability and long lifespan. It also integrates a programmable RGB LED for status indication and interactive display. Suitable for human-machine interaction, robot control, and other applications. The ChainJoystick series of devices integrates the STM32G031G8U6 core controller and adopts the UART serial port cascading communication protocol. Through two HY2.0-4P expansion interfaces, more Chain series devices can be added to build richer interactive applications. High-Precision Hall Electromagnetic joystick STM32G031G8U6 core controller X/Y/Z three-axis input 1X RGB LED Uses UART serial cascade communication protocol 2x HY2.0-4P expansion interface, expandable to Chain series devices Specifications MCU: STM32G031G8U6 Input power: DC 5V Communication interface: UART Interface specification: 2x HY2.0-4P RGB LED: 1x WS2812C Power consumption: 25.4mA Operating temperature: 0~40°C Color: Random Color Material: plastic Package Contents: 1* Chain Joystick