The P4 advertising box is an LED display featuring a pixel pitch of 4 mm, commonly utilized for both indoor and outdoor advertising purposes. To facilitate interactive functionality, several methods are frequently employed:

- **Infrared Sensing Technology**: Infrared sensors are strategically positioned in front of the LED display to detect audience movement or gestures. Upon capturing such actions, the system triggers corresponding changes in displayed content, thereby enabling human-screen interaction.

- **Pressure Sensing Technology**: Within the LED floor tile screen, integrated pressure sensors can detect audience footfalls. When a viewer steps on the screen, the system adjusts the displayed content based on variations in pressure, creating dynamic effects such as water ripples and blooming flowers.

- **Camera Capture**: A camera captures real-time actions or expressions of the audience while the system analyzes these inputs to generate relevant interactive content on-screen. This method is particularly effective for scenarios requiring more intricate interactions.

When selecting an interaction method, it is essential to evaluate specific application contexts, budget constraints, and technical requirements to ensure optimal interaction outcomes.