Compatibility and scope The Nextion IO Adapter is designed to work with the Nextion Enhanced HMI Display Series, covering standard sizes 2.4', 2.8', 3.2', 3.5', 4.3', 5.0', and 7.0'. Core function This small adapter pins out the GPIOs of the Nextion Enhanced display to 2.54 inch headers, enabling convenient access for external wiring and . Design and integration Compact board form factor that simplifies integration with Nextion displays and host controllers, reducing wiring complexity and making GPIO access straightforward. Practical applications Rapid prototyping with microcontrollers (for example Arduino, Raspberry Pi, ESP32) to control or monitor Nextion display GPIOs. Integrating Nextion HMI with external sensors, actuators, or peripheral modules to build cohesive projects. Debugging and development by directly accessing GPIOs without permanent modification to the display. Key attributes Functionality to expose GPIOs, compatibility with the Nextion Enhanced HMI Display Series, support for multiple display sizes, small form factor, and convenient 2.54 inch header interfaces.