smart irrigation system 3d model

Create a 3D model of a school outdoor environment with a strong focus on a realistic grassy terrain. The grass should be dense, green, and slightly uneven, with small variations in height and color to look natural. The terrain must be mostly flat but include minor imperfections like small bumps and patches of soil. On top of the grass, add a simple automatic irrigation system using Arduino. Include small sprinklers evenly distributed, connected by thin pipes. Add a few soil moisture sensors partially inserted into the ground, connected to an Arduino control box placed at the side. The design should clearly represent a smart irrigation system that waters the grass only when needed. Use a clean, semi-realistic style suitable for a school project, keeping all elements simple, visible, and well organized.