As one way of realizing ideas using technology, we will explain how to use Sony's MESH. As objects are connected to sensors, it has become possible to realize ideas in ways that have not been possible. Here, we will explain how to use “MESH Design Pattern Cards” for brainstorming ideas. 【The aim of this recipe】 1. Learn the basics of MESH and become able to use it. 2. Become able to brainstorm ideas with MESH Design Pattern Cards.