Educational robotics is an interdisciplinary teaching environment based on the use of robots and electronic components as a common thread to enhance the development of children's skills and competencies. It works especially in the STEAM disciplines, although it can also cover other areas such as linguistics, geography and history. The main entry barriers to the use of educational robotics could be to answer the questions: which platform is best to use, which platform allows me to travel more in the learning process, how much effort do I need to devote to prepare educational content with the platform I choose, and how much budget do I need for my students to develop their skills with educational robotics? Throughout this article we present Crumble as a platform commonly used in educational robotics. We also include the results obtained through educational experiences based on the use of this platform. Finally, throughout the conclusions, we give answers to the questions posed above.